Choosing the best time for a wedding in Osasco is less about chasing a single dry season than balancing Greater São Paulo realities: summer brightness, winter stability, commuter traffic, and year-end demand. Osasco sits inside a dense urban region, so logistics matter almost as much as weather. A date with stronger historical sunshine can still need a wet-weather plan, while a cooler, drier month may make guest movement and outdoor comfort much easier.
This report uses historical weather patterns from 2016-2025 to highlight helpful signals for 2026-2028, not certainties. In Osasco, venue style matters a lot: rooftops, gardens and club spaces need different backup plans from hotel ballrooms or restaurant venues. Also weigh school holidays, Christmas travel, Carnival timing, and heavy regional traffic when you shortlist dates, because guest punctuality in the São Paulo metro area can shape the day as much as the forecast.
December is the highest-ranked month in this historical set for Osasco, averaging 9.57 daily sunshine hours and a warm average daily maximum of 27.34°C. That brightness is attractive for late-afternoon ceremonies and lively evening receptions, especially if you want summer colour and longer-feeling days. The catch is that December also averages 6.78 daily precipitation hours, so outdoor plans need proper cover, drainage and a realistic ceremony backup. It is also a competitive period for family schedules, corporate celebrations and holiday travel, so the best December weddings here are usually the ones booked early and planned with flexible timings.
Historically, 09 February stands out as Osasco's highest-ranked date, with 12.04 sunshine hours, 2.3 precipitation hours and an average maximum temperature of 27.68°C. For couples open to a summer wedding, that combination suggests bright conditions without the heaviest rain signal seen elsewhere in the season. The strongest Saturdays in the planning years also cluster in the warmer part of the calendar: 21 November 2026, 25 December 2027 and 16 December 2028. Even so, these are historical indicators rather than promises, so in Osasco it is wise to treat any open-air plan as weather-sensitive and build in covered arrival, photos and cocktail options.
Before confirming a top-scoring date in Osasco, check the wider São Paulo calendar as well as your venue contract. Holiday weekends, Christmas week, Carnival-related travel and major metro-area events can change hotel pricing, journey times and guest attendance. Ask venues about covered access from car park to ceremony space, supplier loading times and whether rain-plan moves can be called on the same day without extra fees.
Keep reading to view the best day to get married, hours of rain per day and average high temperature per day in Osasco, São Paulo, Brazil for every month in 2026, 2027 and 2028:
Use these practical tips alongside the historical weather signals when narrowing down your date and venue.
Osasco is tightly connected to the wider São Paulo metro area, which is helpful for guest access but unforgiving if your schedule is tight. Build extra margin before the ceremony, especially for Friday evenings, rainy Saturdays and routes crossing major business districts.
In Osasco, a backup plan should mean more than a few umbrellas. Ask whether the venue can move ceremony, drinks and photos under cover without crowding guests, damaging decor flow or charging late change fees if summer rain arrives.
Warm months such as December and February can feel heavy in formalwear, while June to August evenings may surprise guests who expect constant heat. Tailor your dress code, welcome drinks and late-night comfort items to the season instead of using one standard wedding template.
Holiday travel, Carnival timing, school breaks and year-end corporate events can affect attendance, hotel costs and supplier availability across Greater São Paulo. Before paying deposits, compare your preferred date with the wider regional calendar, not just the venue's own availability.
December currently ranks highest in Dropory's historical analysis for Osasco, São Paulo, Brazil. Use the result alongside venue availability, guest travel and your preferred wedding style.
09 February currently has the strongest historical weather result in this report. Past patterns cannot guarantee future conditions, so keep a suitable indoor or covered option available.
Dropory compares daily sunshine, precipitation and temperature history to rank months, dates and Saturdays, then combines those signals with practical local planning guidance.
Historically, December ranks highest in this report because it averages 9.57 sunshine hours, which is strong for light and overall atmosphere. However, it also carries 6.78 precipitation hours on average, so it is best for couples who like bright summer energy and are willing to invest in a serious wet-weather backup plan.
If by safest you mean lower historical rain pressure, the drier stretch from May to August is usually easier to manage than high summer. July is especially notable here, averaging only 1.05 precipitation hours. The trade-off is cooler evenings and less of the lush, stormy summer look some couples specifically want.
That depends on your venue and guest mix. Osasco works well for local attendance and practical access, but some out-of-town guests may prefer staying in São Paulo for broader hotel choice and leisure options. Either way, provide clear route guidance and realistic travel times, because metro-area traffic can affect arrival more than distance on paper.
Use these buttons to select the year you're planning your event in. Use the °F / °C buttons to choose your preferred temperature scale.
The sun shows you the median hours of sunny weather & clear skies on this day in the last 10 years
The thermometer shows you the average max temperature on this day during the last 10 years
The drop shows you the median hours of rainfall / precipitation on this day during the last 10 years
Osasco, São Paulo, Brazil
Top date in January, 2027:
25 January
Top dates with the most sunshine
25 January
- 10.7 median hours of sunny weather
16 January
- 10.4 median hours of sunny weather
26 January
- 10.3 median hours of sunny weather
01 January
- 10.1 median hours of sunny weather
21 January
- 10 median hours of sunny weather
Top Saturdays in January 2027
16 January
- 10.4 median hours of sunny weather
02 January
- 9.2 median hours of sunny weather
23 January
- 8.5 median hours of sunny weather
30 January
- 8.3 median hours of sunny weather
09 January
- 7.4 median hours of sunny weather
Based on data from: 2016-2025
01
82 °F
10.1 h
7.6 h
02
82 °F
9.2 h
11.1 h
03
80 °F
8.8 h
8.9 h
04
80 °F
9 h
8.9 h
05
79 °F
8.4 h
9.8 h
06
81 °F
9.6 h
7.8 h
07
80 °F
8.8 h
6.1 h
08
81 °F
8.4 h
8.3 h
09
80 °F
7.4 h
9.1 h
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7.9 h
8.1 h
11
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8.4 h
8.6 h
12
79 °F
7.2 h
11.3 h
13
79 °F
7.2 h
10.2 h
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9.3 h
6.4 h
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82 °F
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81 °F
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82 °F
9 h
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80 °F
7.6 h
7.9 h
21
81 °F
10 h
5.6 h
22
81 °F
9.8 h
5.6 h
23
81 °F
8.5 h
8.6 h
24
82 °F
9.6 h
7.4 h
25
81 °F
10.7 h
6.7 h
26
81 °F
10.3 h
6.6 h
27
82 °F
10 h
5.5 h
28
82 °F
9.9 h
6.9 h
29
81 °F
9.5 h
8.4 h
30
81 °F
8.3 h
10 h
31
82 °F
8.5 h
7.3 h
January in Osasco feels unmistakably summer-like: the historical averages show 8.99 sunshine hours, 8.02 precipitation hours and a daily maximum of 27.27°C. That means lush surroundings and bright light are possible, but showers are a serious planning factor rather than a minor risk. The strongest historical date here is 25 January, with 10.72 sunshine hours. Because many guests may still be away for school holidays or coastal trips, January suits couples prioritising a relaxed holiday atmosphere over full attendance certainty. If you book this month, choose a venue with strong air circulation, covered ceremony options and generous arrival buffers for wet-road traffic.
Osasco, São Paulo, Brazil
Top date in February, 2027:
09 February
Top dates with the most sunshine
09 February
- 12 median hours of sunny weather
08 February
- 11.6 median hours of sunny weather
10 February
- 10.4 median hours of sunny weather
07 February
- 10.2 median hours of sunny weather
20 February
- 9.9 median hours of sunny weather
Top Saturdays in February 2027
20 February
- 9.9 median hours of sunny weather
27 February
- 9.4 median hours of sunny weather
06 February
- 9.2 median hours of sunny weather
13 February
- 8.1 median hours of sunny weather
Based on data from: 2016-2025
01
81 °F
8.4 h
9.1 h
02
81 °F
7.3 h
8.9 h
03
80 °F
8.7 h
7.4 h
04
79 °F
7.6 h
8 h
05
80 °F
9 h
8.4 h
06
79 °F
9.2 h
7.8 h
07
80 °F
10.2 h
7.3 h
08
81 °F
11.6 h
4.1 h
09
82 °F
12 h
2.3 h
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82 °F
10.4 h
5.6 h
11
80 °F
8.7 h
8 h
12
81 °F
9.5 h
6.9 h
13
80 °F
8.1 h
6.6 h
14
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8.8 h
5.4 h
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7.9 h
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80 °F
8.2 h
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82 °F
9.5 h
5.9 h
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82 °F
9 h
6.5 h
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82 °F
9.9 h
6.7 h
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82 °F
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6.5 h
21
80 °F
8.2 h
8.4 h
22
80 °F
8.9 h
8 h
23
81 °F
9.3 h
6.3 h
24
82 °F
9.7 h
4.8 h
25
81 °F
9.2 h
6.6 h
26
80 °F
8 h
8.2 h
27
80 °F
9.4 h
7 h
28
81 °F
7.8 h
7.1 h
February is one of Osasco's more attractive summer options, combining 9.08 average sunshine hours with 6.89 precipitation hours and an average maximum of 27.09°C. Its standout historical date, 09 February, reached 12.04 sunshine hours with just 2.3 precipitation hours, which helps explain the month's appeal. Still, February can overlap with Carnival season in Brazil depending on the year, and that can affect guest travel, hotel rates and weekend plans across the São Paulo region. For an Osasco wedding, this month works well when you want warm-weather energy but are willing to confirm the wider holiday calendar early and keep a rain-proof reception flow.
Osasco, São Paulo, Brazil
Top date in March, 2027:
08 March
Top dates with the most sunshine
08 March
- 10.4 median hours of sunny weather
09 March
- 10.3 median hours of sunny weather
17 March
- 10.1 median hours of sunny weather
05 March
- 10.1 median hours of sunny weather
25 March
- 10.1 median hours of sunny weather
Top Saturdays in March 2027
06 March
- 9.3 median hours of sunny weather
13 March
- 8.8 median hours of sunny weather
20 March
- 8.6 median hours of sunny weather
27 March
- 8 median hours of sunny weather
Based on data from: 2016-2025
01
80 °F
8.5 h
8 h
02
82 °F
9.5 h
8.2 h
03
81 °F
8.9 h
9.5 h
04
81 °F
9.1 h
7.1 h
05
81 °F
10.1 h
5.7 h
06
82 °F
9.3 h
9 h
07
81 °F
9.5 h
7.1 h
08
82 °F
10.4 h
5.6 h
09
83 °F
10.3 h
4.7 h
10
83 °F
9.8 h
4.2 h
11
81 °F
8.6 h
9.1 h
12
81 °F
9.3 h
6.2 h
13
80 °F
8.8 h
6.3 h
14
81 °F
9.3 h
6.7 h
15
81 °F
9.6 h
4.9 h
16
82 °F
10 h
6.4 h
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81 °F
10.1 h
4.7 h
18
81 °F
9.2 h
5.5 h
19
82 °F
9.1 h
6.5 h
20
79 °F
8.6 h
7.1 h
21
78 °F
8.4 h
4.4 h
22
80 °F
10 h
2 h
23
80 °F
9.6 h
4 h
24
79 °F
9.1 h
4.7 h
25
81 °F
10.1 h
3.6 h
26
81 °F
10 h
2.7 h
27
79 °F
8 h
6.5 h
28
79 °F
8.7 h
6.7 h
29
79 °F
9.1 h
7.1 h
30
80 °F
10 h
5.2 h
31
79 °F
9.4 h
4.6 h
March is a useful compromise month in Osasco. Historical averages improve slightly on summer rain pressure, with 9.36 sunshine hours, 5.94 precipitation hours and a 26.98°C average daily maximum. You still get warm conditions, but often with a touch more flexibility for outdoor moments than in January. The strongest historical date, 08 March, recorded 10.41 sunshine hours. For couples who want a garden ceremony, terrace drinks or photos before sunset without leaning too hard into peak holiday periods, March is a sensible contender. One practical step: schedule hair, makeup and transport with extra margin, because warm, damp conditions can still slow traffic and affect styling longevity.
Osasco, São Paulo, Brazil
Top date in April, 2027:
04 April
Top dates with the most sunshine
04 April
- 10.4 median hours of sunny weather
03 April
- 10.3 median hours of sunny weather
20 April
- 10.2 median hours of sunny weather
11 April
- 10 median hours of sunny weather
10 April
- 9.9 median hours of sunny weather
Top Saturdays in April 2027
03 April
- 10.3 median hours of sunny weather
10 April
- 9.9 median hours of sunny weather
24 April
- 9.7 median hours of sunny weather
17 April
- 7.9 median hours of sunny weather
Based on data from: 2016-2025
01
78 °F
8.8 h
5 h
02
77 °F
9.2 h
3.1 h
03
80 °F
10.3 h
3.3 h
04
80 °F
10.4 h
1.9 h
05
81 °F
9.8 h
3.2 h
06
78 °F
8.4 h
6.5 h
07
76 °F
7 h
9 h
08
77 °F
8.1 h
6.2 h
09
77 °F
8.2 h
5 h
10
78 °F
9.9 h
2.8 h
11
79 °F
10 h
1.7 h
12
79 °F
9 h
3.4 h
13
78 °F
8.3 h
3.3 h
14
77 °F
6.4 h
5.3 h
15
75 °F
8.2 h
5 h
16
77 °F
8.5 h
2.6 h
17
76 °F
7.9 h
3.9 h
18
76 °F
8.7 h
5.2 h
19
75 °F
8.7 h
3.9 h
20
76 °F
10.2 h
2.4 h
21
76 °F
9.8 h
3.5 h
22
76 °F
9.1 h
2.7 h
23
77 °F
8.8 h
1.4 h
24
79 °F
9.7 h
0.7 h
25
81 °F
9.4 h
1.6 h
26
78 °F
7.1 h
5.6 h
27
76 °F
7.5 h
6.2 h
28
75 °F
8.1 h
3.1 h
29
73 °F
7.5 h
5 h
30
75 °F
8.7 h
1.1 h
April brings a noticeable shift in Osasco toward easier wedding logistics. Average daily precipitation falls to 3.79 hours, while temperatures ease to 25.14°C and sunshine remains healthy at 8.72 hours. That balance makes April attractive for couples who want outdoor elements without the stickier feel of high summer. The strongest historical date, 04 April, paired 10.38 sunshine hours with just 1.9 precipitation hours. In a built-up metro area like Osasco, milder weather can also make guest movement, valet queues and photo sessions more comfortable. If you like this month, ask venues about sunset timing and lighting design, since evenings begin to feel shorter than in summer.
Osasco, São Paulo, Brazil
Top date in May, 2027:
01 May
Top dates with the most sunshine
01 May
- 9.8 median hours of sunny weather
02 May
- 9.7 median hours of sunny weather
03 May
- 9.7 median hours of sunny weather
26 May
- 9.4 median hours of sunny weather
25 May
- 9.2 median hours of sunny weather
Top Saturdays in May 2027
01 May
- 9.8 median hours of sunny weather
08 May
- 8.2 median hours of sunny weather
22 May
- 7.7 median hours of sunny weather
29 May
- 7.7 median hours of sunny weather
15 May
- 7.4 median hours of sunny weather
Based on data from: 2016-2025
01
76 °F
9.8 h
1.4 h
02
77 °F
9.7 h
1.9 h
03
78 °F
9.7 h
0 h
04
78 °F
9 h
1.3 h
05
77 °F
8.8 h
2 h
06
78 °F
8.7 h
2.9 h
07
73 °F
7.2 h
3.5 h
08
74 °F
8.2 h
2.3 h
09
77 °F
8.9 h
1.2 h
10
76 °F
8.3 h
2.5 h
11
76 °F
8.5 h
3.3 h
12
74 °F
7.7 h
3.4 h
13
73 °F
7.9 h
1.6 h
14
74 °F
8.6 h
2.7 h
15
71 °F
7.4 h
4.3 h
16
72 °F
7.8 h
4.7 h
17
72 °F
7.5 h
3.6 h
18
71 °F
7.9 h
4.9 h
19
71 °F
6.6 h
4.8 h
20
73 °F
8.4 h
0.3 h
21
74 °F
8.3 h
3.3 h
22
74 °F
7.7 h
2.3 h
23
73 °F
7.9 h
3.1 h
24
71 °F
8.4 h
1.6 h
25
72 °F
9.2 h
1.1 h
26
74 °F
9.4 h
0.2 h
27
74 °F
7.9 h
1.6 h
28
74 °F
8.1 h
2.6 h
29
74 °F
7.7 h
2.5 h
30
71 °F
7.2 h
3 h
31
70 °F
6.6 h
4.9 h
May is one of the calmer planning months for Osasco weddings. Historically it averages 8.21 sunshine hours, only 2.54 precipitation hours and a cooler 23.27°C daily maximum. That combination is helpful for formalwear comfort, fuller makeup wear and smoother outdoor-to-indoor transitions. The strongest historical date, 01 May, reached 9.83 sunshine hours with 1.4 precipitation hours, though public holiday patterns around early May can affect traffic and accommodation demand. May often suits elegant daytime celebrations, city venues and receptions that run late without intense heat. A useful planning move is to revisit guest dress guidance here: many visitors may assume São Paulo state is always hot and under-pack layers for the evening.
Osasco, São Paulo, Brazil
Top date in June, 2027:
25 June
Top dates with the most sunshine
25 June
- 9.2 median hours of sunny weather
30 June
- 9.1 median hours of sunny weather
12 June
- 9 median hours of sunny weather
24 June
- 8.9 median hours of sunny weather
22 June
- 8.8 median hours of sunny weather
Top Saturdays in June 2027
12 June
- 9 median hours of sunny weather
19 June
- 8.3 median hours of sunny weather
26 June
- 8 median hours of sunny weather
05 June
- 5.6 median hours of sunny weather
Based on data from: 2016-2025
01
71 °F
7.8 h
4.5 h
02
72 °F
7.7 h
3.6 h
03
70 °F
6.1 h
4.8 h
04
71 °F
6.9 h
3.7 h
05
70 °F
5.6 h
5.2 h
06
73 °F
7.1 h
5.3 h
07
71 °F
6.9 h
5.6 h
08
71 °F
7.4 h
3.5 h
09
72 °F
8.2 h
1.2 h
10
72 °F
8.5 h
4.1 h
11
71 °F
8.6 h
1.8 h
12
71 °F
9 h
0.4 h
13
68 °F
7.6 h
3.1 h
14
67 °F
6.5 h
4.6 h
15
70 °F
7.3 h
2.3 h
16
70 °F
7.9 h
0.7 h
17
72 °F
8.8 h
0.6 h
18
70 °F
8 h
1.4 h
19
72 °F
8.3 h
0.9 h
20
71 °F
7.1 h
2.1 h
21
72 °F
7.6 h
0.9 h
22
73 °F
8.8 h
2.8 h
23
73 °F
8.6 h
0.9 h
24
74 °F
8.9 h
1.1 h
25
74 °F
9.2 h
0.8 h
26
71 °F
8 h
2.5 h
27
72 °F
8.2 h
2.3 h
28
73 °F
8.6 h
2.4 h
29
73 °F
8.3 h
0.6 h
30
72 °F
9.1 h
1.1 h
June is cooler and relatively stable in Osasco, with 7.89 average sunshine hours, 2.49 precipitation hours and an average daily maximum of 21.88°C. If you dislike humid heat, this can be a very comfortable month for ceremonies in suits, heavier fabrics and long receptions. The strongest historical date, 25 June, showed 9.23 sunshine hours and just 0.8 precipitation hours. June also sits within Brazil's festa junina season, which can be charming if you want subtle seasonal touches, though you should avoid leaning on theme decor unless it genuinely suits you. For practical planning, check whether your venue needs extra heating, enclosed lounge areas or warm late-night food service.
Osasco, São Paulo, Brazil
Top date in July, 2027:
27 July
Top dates with the most sunshine
27 July
- 9.9 median hours of sunny weather
24 July
- 9.8 median hours of sunny weather
23 July
- 9.7 median hours of sunny weather
21 July
- 9.6 median hours of sunny weather
25 July
- 9.5 median hours of sunny weather
Top Saturdays in July 2027
24 July
- 9.8 median hours of sunny weather
17 July
- 8.6 median hours of sunny weather
03 July
- 8 median hours of sunny weather
31 July
- 7.9 median hours of sunny weather
10 July
- 7.7 median hours of sunny weather
Based on data from: 2016-2025
01
70 °F
7.9 h
1.6 h
02
70 °F
7.1 h
0.4 h
03
70 °F
8 h
1 h
04
70 °F
7.4 h
3.3 h
05
71 °F
8.6 h
1.8 h
06
71 °F
9.2 h
0.6 h
07
70 °F
9.4 h
0.2 h
08
72 °F
9.4 h
0.5 h
09
70 °F
7.9 h
3 h
10
70 °F
7.7 h
3 h
11
73 °F
9.1 h
0.7 h
12
75 °F
9.3 h
0 h
13
73 °F
7.9 h
0.7 h
14
72 °F
8.1 h
0.9 h
15
74 °F
8.6 h
0.2 h
16
73 °F
8.5 h
1.5 h
17
73 °F
8.6 h
0.9 h
18
70 °F
7.4 h
1.2 h
19
69 °F
7.5 h
0.6 h
20
70 °F
9.4 h
0.3 h
21
73 °F
9.6 h
0 h
22
73 °F
9.1 h
0 h
23
76 °F
9.7 h
0 h
24
75 °F
9.8 h
0.3 h
25
76 °F
9.5 h
0.4 h
26
75 °F
8.9 h
0.4 h
27
78 °F
9.9 h
0.4 h
28
74 °F
8.8 h
2.1 h
29
70 °F
7.6 h
2.3 h
30
69 °F
8.3 h
2.5 h
31
69 °F
7.9 h
1.8 h
July is one of the driest-looking months in Osasco's historical pattern, averaging just 1.05 precipitation hours alongside 8.58 sunshine hours and a 22.23°C daily maximum. That lower rain signal is a real advantage for couples wanting dependable outdoor circulation, even if mornings and evenings can feel cooler than guests expect in metropolitan São Paulo. The strongest historical date, 27 July, reached 9.92 sunshine hours with only 0.4 precipitation hours. July can also coincide with school holidays, which may help travelling families but raise leisure demand in some hotels. If you choose July, plan your timeline around light layers, evening comfort and earlier sunset compared with summer months.
Osasco, São Paulo, Brazil
Top date in August, 2027:
24 August
Top dates with the most sunshine
24 August
- 9.8 median hours of sunny weather
23 August
- 9.8 median hours of sunny weather
30 August
- 9 median hours of sunny weather
25 August
- 8.8 median hours of sunny weather
12 August
- 8.8 median hours of sunny weather
Top Saturdays in August 2027
07 August
- 8.6 median hours of sunny weather
14 August
- 7.9 median hours of sunny weather
28 August
- 7.8 median hours of sunny weather
21 August
- 5.9 median hours of sunny weather
Based on data from: 2016-2025
01
72 °F
8.5 h
1.4 h
02
75 °F
8.7 h
1.3 h
03
71 °F
7.7 h
2.9 h
04
71 °F
8.1 h
1.7 h
05
73 °F
7.6 h
1.8 h
06
73 °F
8 h
1.7 h
07
75 °F
8.6 h
0.8 h
08
75 °F
7.8 h
1.6 h
09
78 °F
8.5 h
3.9 h
10
72 °F
8.4 h
3.5 h
11
69 °F
8.3 h
2.7 h
12
71 °F
8.8 h
0.6 h
13
72 °F
7.9 h
1.2 h
14
72 °F
7.9 h
0.7 h
15
73 °F
8.4 h
1.6 h
16
73 °F
7.4 h
2.9 h
17
75 °F
6.4 h
4 h
18
77 °F
7.9 h
3.4 h
19
75 °F
7.3 h
3.3 h
20
73 °F
6.3 h
6 h
21
71 °F
5.9 h
4.7 h
22
72 °F
7.3 h
1.8 h
23
77 °F
9.8 h
0.2 h
24
78 °F
9.8 h
0.3 h
25
75 °F
8.8 h
2.9 h
26
72 °F
7.1 h
3.8 h
27
71 °F
7.6 h
3.3 h
28
73 °F
7.8 h
2.7 h
29
73 °F
7.8 h
1.6 h
30
77 °F
9 h
1.9 h
31
75 °F
8.7 h
1.1 h
August in Osasco can work very well for couples who value lower rain risk over lush summer atmosphere. Historical averages show 7.99 sunshine hours, 2.3 precipitation hours and a 23.02°C daily maximum, keeping the month comfortable without feeling cold by local standards. The strongest historical date, 24 August, recorded 9.81 sunshine hours and only 0.3 precipitation hours. One trade-off is that late winter conditions can feel a little drier and less green in outdoor settings, so floral styling and photography choices matter more. For an August wedding, visit your venue at the same time of day as your planned ceremony to assess shade, light quality and how the grounds look outside the rainy season.
Osasco, São Paulo, Brazil
Top date in September, 2027:
12 September
Top dates with the most sunshine
12 September
- 10.6 median hours of sunny weather
13 September
- 10.3 median hours of sunny weather
27 September
- 10.3 median hours of sunny weather
08 September
- 10.1 median hours of sunny weather
24 September
- 10.1 median hours of sunny weather
Top Saturdays in September 2027
11 September
- 9.9 median hours of sunny weather
18 September
- 9.8 median hours of sunny weather
04 September
- 8.1 median hours of sunny weather
25 September
- 8 median hours of sunny weather
Based on data from: 2016-2025
01
76 °F
8.9 h
1.7 h
02
79 °F
9.9 h
2.3 h
03
80 °F
9.3 h
3.2 h
04
78 °F
8.1 h
1.1 h
05
77 °F
8.1 h
2.1 h
06
76 °F
7.9 h
2.4 h
07
76 °F
8.7 h
2.2 h
08
82 °F
10.1 h
0.2 h
09
83 °F
9.6 h
0.6 h
10
83 °F
9.8 h
1.6 h
11
81 °F
9.9 h
0.2 h
12
85 °F
10.6 h
0.4 h
13
84 °F
10.3 h
0.8 h
14
81 °F
7.7 h
4.2 h
15
77 °F
8.7 h
2.7 h
16
77 °F
7.8 h
2.3 h
17
79 °F
8.1 h
3 h
18
81 °F
9.8 h
2 h
19
82 °F
10.1 h
1.3 h
20
79 °F
7.9 h
4.3 h
21
80 °F
8.3 h
4.3 h
22
76 °F
6.5 h
6 h
23
78 °F
9.2 h
2.5 h
24
79 °F
10.1 h
1.5 h
25
77 °F
8 h
2.7 h
26
80 °F
7.6 h
3.1 h
27
81 °F
10.3 h
3.2 h
28
75 °F
6.6 h
4.6 h
29
76 °F
8.5 h
2.1 h
30
79 °F
8.8 h
4.6 h
September often appeals to couples who want brighter spring energy before the wetter late-year pattern returns. In Osasco, it averages 8.84 sunshine hours, 2.44 precipitation hours and a warmer 26.23°C daily maximum. The standout historical date is 12 September, with 10.63 sunshine hours, 0.4 precipitation hours and a notably hot 29.2°C maximum. That means spring weddings can feel vibrant and open-air-friendly, but heat management starts to matter again, especially for afternoon ceremonies. September is a smart month for rooftop or garden events if you provide water, shade and an efficient photo schedule. Also confirm landscaping cycles with the venue, as spring growth can change how spaces look from one week to the next.
Osasco, São Paulo, Brazil
Top date in October, 2027:
06 October
Top dates with the most sunshine
06 October
- 10.1 median hours of sunny weather
23 October
- 9.7 median hours of sunny weather
13 October
- 9.5 median hours of sunny weather
12 October
- 9.3 median hours of sunny weather
27 October
- 9.2 median hours of sunny weather
Top Saturdays in October 2027
23 October
- 9.7 median hours of sunny weather
16 October
- 9.2 median hours of sunny weather
02 October
- 8.7 median hours of sunny weather
30 October
- 7.8 median hours of sunny weather
09 October
- 7 median hours of sunny weather
Based on data from: 2016-2025
01
81 °F
8.9 h
4.5 h
02
82 °F
8.7 h
1.8 h
03
80 °F
8.4 h
4.9 h
04
76 °F
7.5 h
6 h
05
77 °F
6.6 h
4.3 h
06
81 °F
10.1 h
3.8 h
07
78 °F
6.2 h
7.5 h
08
76 °F
7.1 h
5.9 h
09
77 °F
7 h
9.7 h
10
75 °F
7.4 h
4.4 h
11
78 °F
7.6 h
6.6 h
12
82 °F
9.3 h
4.4 h
13
83 °F
9.5 h
4.7 h
14
79 °F
8.1 h
4.2 h
15
76 °F
6.2 h
5.9 h
16
79 °F
9.2 h
3.3 h
17
79 °F
8.3 h
4.1 h
18
81 °F
8.2 h
4.7 h
19
78 °F
6.8 h
7.1 h
20
73 °F
6.9 h
6.8 h
21
72 °F
6.7 h
5.7 h
22
76 °F
8.5 h
3.4 h
23
79 °F
9.7 h
2.1 h
24
77 °F
7.3 h
7.3 h
25
77 °F
8.5 h
7.3 h
26
80 °F
8.7 h
6 h
27
83 °F
9.2 h
6.3 h
28
77 °F
7.7 h
5.8 h
29
78 °F
8.3 h
5 h
30
78 °F
7.8 h
6.2 h
31
76 °F
7 h
7.2 h
October is a transitional month in Osasco, with warmth returning but weather becoming less settled. Historical averages show 7.98 sunshine hours, 5.38 precipitation hours and a 25.68°C daily maximum. The strongest historical date, 06 October, still managed 10.07 sunshine hours, showing that excellent days are possible, but the month asks for flexibility. For weddings, October can be lovely for spring flowers and comfortable evening receptions, yet it is not the time to rely on an uncovered plan B that barely counts as shelter. In the São Paulo metro area, storm timing can also complicate late-afternoon traffic. If October is your month, build a clear rain-call deadline into the venue and supplier schedule.
Osasco, São Paulo, Brazil
Top date in November, 2027:
21 November
Top dates with the most sunshine
21 November
- 11 median hours of sunny weather
13 November
- 10.5 median hours of sunny weather
22 November
- 10.5 median hours of sunny weather
12 November
- 10.4 median hours of sunny weather
29 November
- 10.3 median hours of sunny weather
Top Saturdays in November 2027
13 November
- 10.5 median hours of sunny weather
27 November
- 10.1 median hours of sunny weather
20 November
- 8.8 median hours of sunny weather
06 November
- 8.2 median hours of sunny weather
Based on data from: 2016-2025
01
74 °F
7.9 h
8 h
02
76 °F
9.4 h
5.4 h
03
77 °F
8.2 h
7.8 h
04
76 °F
8.3 h
6.5 h
05
74 °F
7.7 h
6.2 h
06
74 °F
8.2 h
4.3 h
07
75 °F
9.5 h
6.3 h
08
77 °F
8.1 h
5.2 h
09
79 °F
8.3 h
9.7 h
10
79 °F
8.3 h
6.1 h
11
78 °F
8.1 h
6.1 h
12
78 °F
10.4 h
5.2 h
13
81 °F
10.5 h
4.3 h
14
80 °F
8.3 h
7 h
15
80 °F
9.7 h
4.4 h
16
80 °F
10.2 h
2.4 h
17
81 °F
10 h
6.3 h
18
77 °F
7.1 h
9.7 h
19
75 °F
7.4 h
11.8 h
20
75 °F
8.8 h
4.9 h
21
79 °F
11 h
2.3 h
22
81 °F
10.5 h
4.6 h
23
80 °F
8.9 h
6.9 h
24
76 °F
8.8 h
7.3 h
25
77 °F
9.4 h
6 h
26
78 °F
9.9 h
5.7 h
27
80 °F
10.1 h
5.2 h
28
81 °F
8.8 h
4.7 h
29
82 °F
10.3 h
5.7 h
30
81 °F
9.1 h
6.5 h
November gives Osasco a summery feel without being as deep into holiday season as December. It averages 9.03 sunshine hours, 6.08 precipitation hours and a 25.53°C daily maximum. The strongest historical date, 21 November, is especially notable because it also appears as the best Saturday in 2026, with 10.96 sunshine hours and 2.3 precipitation hours. That makes November attractive for couples who want bright conditions and a lively atmosphere. The downside is that rain risk is climbing again, and the wider São Paulo region can be busy with year-end events and heavy traffic. Reserve hotels early and ask transport providers to price routes with realistic weekend journey times, not optimistic ones.
Osasco, São Paulo, Brazil
Top date in December, 2027:
16 December
Top dates with the most sunshine
16 December
- 11 median hours of sunny weather
08 December
- 10.8 median hours of sunny weather
25 December
- 10.7 median hours of sunny weather
24 December
- 10.5 median hours of sunny weather
17 December
- 10.3 median hours of sunny weather
Top Saturdays in December 2027
25 December
- 10.7 median hours of sunny weather
04 December
- 9.7 median hours of sunny weather
18 December
- 9.7 median hours of sunny weather
11 December
- 9.3 median hours of sunny weather
Based on data from: 2016-2025
01
81 °F
9.1 h
8 h
02
81 °F
9.7 h
3.7 h
03
80 °F
8.5 h
6.5 h
04
82 °F
9.7 h
6.6 h
05
79 °F
8.3 h
6.9 h
06
79 °F
9.7 h
7.3 h
07
80 °F
9.4 h
8.2 h
08
80 °F
10.8 h
6.5 h
09
79 °F
9.2 h
6.2 h
10
80 °F
8.5 h
6.5 h
11
82 °F
9.3 h
5.8 h
12
80 °F
9.7 h
6.2 h
13
81 °F
8.8 h
6.1 h
14
82 °F
9.5 h
7.1 h
15
81 °F
7.7 h
6.4 h
16
83 °F
11 h
6.4 h
17
83 °F
10.3 h
7.8 h
18
80 °F
9.7 h
7.3 h
19
80 °F
9.4 h
4.7 h
20
82 °F
9.2 h
5.1 h
21
82 °F
9.4 h
8.9 h
22
82 °F
9.3 h
9.9 h
23
81 °F
10 h
6.8 h
24
80 °F
10.5 h
6.2 h
25
82 °F
10.7 h
4.4 h
26
84 °F
10.2 h
5.7 h
27
82 °F
10.1 h
7.4 h
28
83 °F
9.8 h
7.8 h
29
84 °F
9.9 h
7.5 h
30
82 °F
9.6 h
8.1 h
31
82 °F
10 h
8.3 h
December is Osasco's brightest historical month, averaging 9.57 sunshine hours and a warm 27.34°C maximum, which helps explain why it tops this report. The strongest historical date is 16 December, with 10.97 sunshine hours, and it is also the best Saturday in 2028. Yet December is not a low-risk dry month: average precipitation reaches 6.78 hours, so summer showers remain part of the planning picture. This month suits couples who love festive energy, long family reunions and a celebratory end-of-year mood. Because diaries fill quickly around Christmas functions and holiday departures, the practical move is to secure key suppliers early and send save-the-dates well ahead of the usual schedule.