May is the strongest all-round month for a wedding in Letterkenny if you want brighter evenings without committing to peak-summer unpredictability. Across the 2016-2025 historical record, it combines the highest average daily sunshine in the year with temperatures that are warm enough for comfortable arrivals, photos, and outdoor drinks, but not so hot that guests feel uncomfortable travelling or dressing formally. The main trade-off is that May can still feel changeable, so flexible venue spaces matter.
This report looks at weather patterns from 2016-2025, so it is best used as a planning signal rather than a promise. In Letterkenny, venue style and travel logistics can matter as much as the climate itself: guests may be coming through Donegal roads, accommodation can tighten around busy weekends, and outdoor plans need a wet-weather fallback. The best date is often the one that balances sunlight with practical access, not just the sunniest statistic.
May stands out in Letterkenny with an average daily sunshine figure of 9.4 hours, which is the strongest monthly signal in the historical record. It is a useful sweet spot for couples who want a brighter ceremony and better photo light without leaning into the heavier rain risk that can build later in summer. The practical advantage is versatility: you can plan for garden drinks, a church-to-reception flow, or a marquee-style moment, while still keeping a solid indoor option ready if the weather turns.
For a single-date signal, 20 June is the strongest historical wedding date in the Letterkenny data set, with 12.1 sunshine hours, 5.4 precipitation hours, and a maximum temperature of 17.31°C. That is a promising profile for long daylight, relaxed portraits, and guests who are less likely to overheat during travel or outdoor mingling. Still, it is a historical ranking, not a guarantee, and Letterkenny’s weather can shift quickly. Treat it as a strong candidate, then confirm your venue, ceremony timing, and rain cover.
The strongest Saturdays by planning year also matter here: 20 June 2026, 24 April 2027, and 13 May 2028 all rank well in the historical record. Before locking in a date, check school holidays, local accommodation demand, and any community events that could affect traffic or room rates. In a compact town like Letterkenny, a date that looks ideal on paper can become harder in practice if hotels, taxis, or preferred suppliers are already busy.
Keep reading to view the best day to get married, hours of rain per day and average high temperature per day in Letterkenny, Ulster, Ireland for every month in 2026, 2027 and 2028:
Practical ideas for planning around the local climate and calendar.
Letterkenny’s weather can turn quickly, even in the stronger months. Choose a venue that looks good indoors as well as out, so your ceremony, photos, and drinks reception all still work if the lawn is unusable or the light disappears earlier than expected.
A town-sized market like Letterkenny can feel tight when one good weekend attracts weddings, family travel, and general visitors. Ask hotels and guesthouses about blocks early, especially for May, June, and August, so guests do not end up scattered across different parts of town.
For guests driving from across Donegal or beyond, journey time can matter as much as rain. Build in a little extra arrival margin for rural roads, parking, and taxi waits, particularly if your venue sits outside the centre or if the wedding is on a Saturday.
The best light in Letterkenny is often about timing the day well, not chasing a single perfect date. Schedule portraits and any outdoor drinks around the brightest part of the afternoon, then move the ceremony and dinner with the season in mind so you are not racing sunset.
May currently ranks highest in Dropory's historical analysis for Letterkenny, Ulster, Ireland. Use the result alongside venue availability, guest travel and your preferred wedding style.
20 June 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.
May is the strongest month in the historical record, mainly because it combines the highest average daily sunshine with workable temperatures. It is a useful balance for couples who want good light but still need a flexible plan for showers, guest travel, and indoor comfort. It is a signal, not a promise, so venue fit still matters.
Letterkenny generally gives you more breathing room in late spring and early summer than in winter, because daylight is much stronger and outdoor moments are easier to stage. Winter can still be lovely if you want a cosy indoor celebration, but you should expect shorter days, colder arrivals, and a greater need for transport and lighting planning.
For the stronger months and Saturdays, it is wise to confirm early because good accommodation, preferred venues, and suppliers can tighten quickly. The safest approach is to check the weather pattern first, then verify local availability, school holidays, and any town activity that could affect rooms or travel before you send save-the-dates.
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
Letterkenny, Ulster, Ireland
Top date in January, 2027:
30 January
Top dates with the most sunshine
30 January
- 3.9 median hours of sunny weather
07 January
- 3.8 median hours of sunny weather
22 January
- 3.8 median hours of sunny weather
19 January
- 3.8 median hours of sunny weather
29 January
- 3.6 median hours of sunny weather
Top Saturdays in January 2027
30 January
- 3.9 median hours of sunny weather
02 January
- 3 median hours of sunny weather
16 January
- 2.6 median hours of sunny weather
09 January
- 2.2 median hours of sunny weather
23 January
- 2.1 median hours of sunny weather
Based on data from: 2016-2025
01
46 °F
3.1 h
6.5 h
02
45 °F
3 h
7.1 h
03
45 °F
2.3 h
5.8 h
04
44 °F
3.5 h
5.1 h
05
44 °F
2 h
3.5 h
06
45 °F
2.5 h
4.9 h
07
44 °F
3.8 h
6.7 h
08
42 °F
3.3 h
3.2 h
09
42 °F
2.2 h
7.1 h
10
47 °F
3 h
6.1 h
11
45 °F
2.5 h
7.2 h
12
44 °F
2.8 h
7.9 h
13
46 °F
1.8 h
9 h
14
46 °F
2.8 h
7.2 h
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46 °F
2.3 h
5.7 h
16
45 °F
2.6 h
8.7 h
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43 °F
2.8 h
4.6 h
18
44 °F
2.5 h
5.2 h
19
44 °F
3.8 h
4.6 h
20
44 °F
2.9 h
3.4 h
21
47 °F
1.3 h
7.1 h
22
46 °F
3.8 h
6 h
23
46 °F
2.1 h
5.2 h
24
48 °F
3 h
6.1 h
25
48 °F
3.1 h
7.8 h
26
47 °F
2.3 h
8.5 h
27
45 °F
2.4 h
6.5 h
28
48 °F
2.1 h
8.8 h
29
47 °F
3.6 h
8.1 h
30
45 °F
3.9 h
5.3 h
31
46 °F
2.6 h
10 h
January in Letterkenny is a low-light, high-uncertainty month, with an average of 2.77 sunshine hours and 6.42 hours of precipitation per day, alongside a cool average maximum temperature of 7.33°C. It can work well for couples prioritising value, privacy, and indoor atmosphere, especially if they want a snug hotel celebration rather than outdoor photographs. The strongest historical January date, 30 January, reached 3.93 sunshine hours, but that is still a limited-weather setting. If you choose January, book a venue with elegant indoor flow and easy guest parking.
Letterkenny, Ulster, Ireland
Top date in February, 2027:
27 February
Top dates with the most sunshine
27 February
- 6.4 median hours of sunny weather
25 February
- 6.4 median hours of sunny weather
11 February
- 6.1 median hours of sunny weather
22 February
- 5.8 median hours of sunny weather
23 February
- 5.7 median hours of sunny weather
Top Saturdays in February 2027
27 February
- 6.4 median hours of sunny weather
13 February
- 4 median hours of sunny weather
20 February
- 3.9 median hours of sunny weather
06 February
- 3.7 median hours of sunny weather
Based on data from: 2016-2025
01
47 °F
4 h
9.2 h
02
47 °F
2.8 h
11.4 h
03
47 °F
3.8 h
10.7 h
04
47 °F
3.5 h
6.8 h
05
47 °F
2.6 h
9.2 h
06
45 °F
3.7 h
6.3 h
07
45 °F
3.3 h
7 h
08
44 °F
3.5 h
8.6 h
09
43 °F
5.5 h
7 h
10
43 °F
5.1 h
5.5 h
11
43 °F
6.1 h
4.1 h
12
44 °F
5.1 h
6 h
13
45 °F
4 h
7 h
14
48 °F
4.4 h
5.5 h
15
48 °F
4.2 h
9.8 h
16
49 °F
3.3 h
9.7 h
17
47 °F
4.5 h
8.6 h
18
47 °F
3.7 h
9.7 h
19
50 °F
1 h
9.7 h
20
50 °F
3.9 h
10.2 h
21
50 °F
4 h
10.3 h
22
48 °F
5.8 h
8.9 h
23
48 °F
5.7 h
6.6 h
24
47 °F
5.6 h
5.4 h
25
47 °F
6.4 h
3 h
26
46 °F
5.6 h
5.4 h
27
46 °F
6.4 h
4.3 h
28
46 °F
5.3 h
5.2 h
February offers a small step up in daylight, averaging 4.37 sunshine hours, but it also carries the month’s highest average precipitation figure in the report at 7.54 hours per day. With average maximum temperatures of 8.12°C, it remains a cold-weather choice in Letterkenny, though it can be appealing for couples who want lower competition for dates and a quieter town feel. The best historical date, 27 February, showed 6.42 sunshine hours and 4.3 precipitation hours, suggesting occasional breaks in the cloud. Build warmth into the day with short transfers, a dry arrival plan, and a reception room that feels welcoming from the start.
Letterkenny, Ulster, Ireland
Top date in March, 2027:
01 March
Top dates with the most sunshine
01 March
- 7.3 median hours of sunny weather
31 March
- 7.1 median hours of sunny weather
25 March
- 7.1 median hours of sunny weather
24 March
- 6.9 median hours of sunny weather
30 March
- 6.8 median hours of sunny weather
Top Saturdays in March 2027
27 March
- 6.6 median hours of sunny weather
20 March
- 6.6 median hours of sunny weather
13 March
- 4.7 median hours of sunny weather
06 March
- 4.1 median hours of sunny weather
Based on data from: 2016-2025
01
46 °F
7.3 h
5.6 h
02
45 °F
3.8 h
6.8 h
03
45 °F
4.3 h
5.4 h
04
45 °F
5.4 h
5.8 h
05
46 °F
6.3 h
5.4 h
06
45 °F
4.1 h
7.3 h
07
47 °F
5.1 h
8.3 h
08
48 °F
6.6 h
6.4 h
09
48 °F
4 h
8.9 h
10
49 °F
5.7 h
7.2 h
11
49 °F
4.3 h
9.4 h
12
48 °F
4.9 h
11.7 h
13
50 °F
4.7 h
7.5 h
14
49 °F
5.6 h
8.7 h
15
50 °F
5 h
8.8 h
16
49 °F
6.1 h
7 h
17
49 °F
4.1 h
6.8 h
18
49 °F
5.3 h
5.8 h
19
49 °F
4.9 h
4.2 h
20
51 °F
6.6 h
5.3 h
21
51 °F
5.8 h
5.2 h
22
52 °F
6.5 h
5.9 h
23
50 °F
5.1 h
7.6 h
24
51 °F
6.9 h
5.9 h
25
53 °F
7.1 h
5 h
26
52 °F
6.1 h
7.4 h
27
52 °F
6.6 h
4.8 h
28
52 °F
6.8 h
9 h
29
51 °F
5.9 h
7.9 h
30
51 °F
6.8 h
4.8 h
31
51 °F
7.1 h
7.9 h
March brings a more workable balance to Letterkenny, with 5.63 sunshine hours on average and temperatures lifting to a 9.51°C daily maximum. It is not yet a reliably mild month, but it can feel hopeful and fresh, especially for couples who like early-season greenery and a slightly less crowded calendar. The strongest historical March date, 01 March, recorded 7.28 sunshine hours, though the precipitation figure of 5.6 hours shows that brightness does not remove the chance of showers. March weddings here benefit from covered guest movement between spaces and hair and makeup timing that allows for weather delays.
Letterkenny, Ulster, Ireland
Top date in April, 2027:
24 April
Top dates with the most sunshine
24 April
- 11.8 median hours of sunny weather
25 April
- 11.2 median hours of sunny weather
27 April
- 9.8 median hours of sunny weather
22 April
- 9.8 median hours of sunny weather
21 April
- 9.4 median hours of sunny weather
Top Saturdays in April 2027
24 April
- 11.8 median hours of sunny weather
10 April
- 8.1 median hours of sunny weather
17 April
- 8 median hours of sunny weather
03 April
- 5.5 median hours of sunny weather
Based on data from: 2016-2025
01
50 °F
5.7 h
8.2 h
02
50 °F
7.3 h
5.3 h
03
50 °F
5.5 h
9.2 h
04
51 °F
6 h
8.5 h
05
51 °F
6.4 h
8.6 h
06
51 °F
8.6 h
10.2 h
07
53 °F
9.1 h
4.1 h
08
53 °F
7.8 h
5.8 h
09
52 °F
8.7 h
5.3 h
10
52 °F
8.1 h
4.4 h
11
54 °F
5.4 h
6.4 h
12
53 °F
5 h
7.2 h
13
53 °F
7.5 h
4.8 h
14
52 °F
8.1 h
5.2 h
15
52 °F
8.2 h
7.4 h
16
53 °F
6.7 h
7.1 h
17
54 °F
8 h
8.3 h
18
55 °F
7.6 h
4.9 h
19
55 °F
6.2 h
6 h
20
56 °F
8.8 h
3.8 h
21
58 °F
9.4 h
1.3 h
22
57 °F
9.8 h
3.9 h
23
56 °F
8.1 h
3.5 h
24
56 °F
11.8 h
4.2 h
25
53 °F
11.2 h
3.8 h
26
51 °F
7.1 h
8.3 h
27
52 °F
9.8 h
6.1 h
28
53 °F
8.6 h
7.7 h
29
55 °F
8.4 h
6.4 h
30
55 °F
9 h
9.6 h
April is one of the most practical shoulder-season choices for Letterkenny, averaging 7.92 sunshine hours and a relatively moderate 6.18 hours of precipitation per day. The temperatures also improve to an average maximum of 11.74°C, which helps with arrivals, portraits, and any short outdoor reception moment. The strongest historical April date was 24 April, with 11.77 sunshine hours and 4.2 precipitation hours, making it a strong signal for light-filled celebrations. The catch is that April can still feel brisk, so venues with both indoor and sheltered outdoor options will give you the most confidence.
Letterkenny, Ulster, Ireland
Top date in May, 2027:
11 May
Top dates with the most sunshine
11 May
- 12 median hours of sunny weather
26 May
- 12 median hours of sunny weather
16 May
- 11.7 median hours of sunny weather
10 May
- 11 median hours of sunny weather
02 May
- 10.8 median hours of sunny weather
Top Saturdays in May 2027
22 May
- 10.2 median hours of sunny weather
29 May
- 9.9 median hours of sunny weather
08 May
- 9.9 median hours of sunny weather
15 May
- 8.7 median hours of sunny weather
01 May
- 7.5 median hours of sunny weather
Based on data from: 2016-2025
01
56 °F
7.5 h
8 h
02
56 °F
10.8 h
6.3 h
03
56 °F
8.5 h
5.6 h
04
55 °F
7.9 h
3.5 h
05
56 °F
9.2 h
4.7 h
06
57 °F
10.4 h
3.8 h
07
58 °F
7.3 h
6.2 h
08
60 °F
9.9 h
6.1 h
09
59 °F
8.7 h
8.6 h
10
58 °F
11 h
6.7 h
11
58 °F
12 h
5.3 h
12
59 °F
9.5 h
4.7 h
13
60 °F
10.7 h
5.3 h
14
59 °F
9.8 h
4.7 h
15
59 °F
8.7 h
5 h
16
60 °F
11.7 h
5.4 h
17
61 °F
10 h
5.3 h
18
59 °F
10.2 h
6.4 h
19
60 °F
9.3 h
6.3 h
20
60 °F
8.3 h
9.5 h
21
59 °F
8.8 h
8.5 h
22
58 °F
10.2 h
6.3 h
23
59 °F
8.9 h
6 h
24
60 °F
7.6 h
5.5 h
25
60 °F
8.4 h
7.3 h
26
61 °F
12 h
5 h
27
60 °F
5.7 h
7.3 h
28
61 °F
9.2 h
3.7 h
29
63 °F
9.9 h
5.6 h
30
63 °F
10.4 h
7.3 h
31
63 °F
9 h
6.4 h
May is the standout month in Letterkenny, with 9.4 average daily sunshine hours, 6.01 hours of precipitation, and an average maximum temperature of 15.1°C. That combination makes it easier to plan for relaxed guest arrivals, late-afternoon portraits, and outdoor drinks without the heavier summer humidity or autumn dampness that can complicate a wedding day. The strongest historical May date, 11 May, reached 12.01 sunshine hours, though the precipitation figure of 5.3 hours is a reminder to keep your rain plan close. If you want the best time to get married in Letterkenny for light and flexibility, May deserves first look.
Letterkenny, Ulster, Ireland
Top date in June, 2027:
20 June
Top dates with the most sunshine
20 June
- 12.1 median hours of sunny weather
05 June
- 10.7 median hours of sunny weather
29 June
- 10.5 median hours of sunny weather
07 June
- 10.4 median hours of sunny weather
06 June
- 10.4 median hours of sunny weather
Top Saturdays in June 2027
05 June
- 10.7 median hours of sunny weather
26 June
- 9.3 median hours of sunny weather
12 June
- 6.1 median hours of sunny weather
19 June
- 4.1 median hours of sunny weather
Based on data from: 2016-2025
01
64 °F
9.5 h
4.8 h
02
63 °F
10 h
6.1 h
03
62 °F
9.9 h
5.6 h
04
61 °F
9.1 h
7.8 h
05
61 °F
10.7 h
10.7 h
06
61 °F
10.4 h
8 h
07
62 °F
10.4 h
4.9 h
08
61 °F
8.5 h
9.6 h
09
62 °F
8.4 h
7.4 h
10
62 °F
7.6 h
10.2 h
11
60 °F
10 h
8.3 h
12
61 °F
6.1 h
6.4 h
13
62 °F
4.3 h
8.4 h
14
63 °F
8.2 h
7.7 h
15
62 °F
8.5 h
7.4 h
16
62 °F
6.9 h
7 h
17
61 °F
6.6 h
7.7 h
18
61 °F
7.5 h
6.9 h
19
60 °F
4.1 h
7.9 h
20
63 °F
12.1 h
5.4 h
21
64 °F
9 h
4.5 h
22
63 °F
7.6 h
5.3 h
23
64 °F
6.5 h
8 h
24
64 °F
7.8 h
7.9 h
25
64 °F
9.6 h
5.7 h
26
64 °F
9.3 h
7.5 h
27
65 °F
8.7 h
9.3 h
28
64 °F
6.9 h
11.8 h
29
63 °F
10.5 h
6.9 h
30
62 °F
7.6 h
7.4 h
June gives Letterkenny its longest-day feeling, with 8.4 sunshine hours on average and the year’s most wedding-friendly daylight for evening receptions. The average maximum temperature rises to 16.88°C, which is comfortable for suits, dresses, and time outdoors without the strain of hotter climates. The month is not the driest, though, at 7.42 precipitation hours per day, so June can be bright but still showery. The strongest historical June date, 20 June, is especially useful because it combines long sunshine with a mild 17.31°C maximum. In practice, June works best when you schedule photographs earlier and keep ceremony exits under cover if possible.
Letterkenny, Ulster, Ireland
Top date in July, 2027:
17 July
Top dates with the most sunshine
17 July
- 10.5 median hours of sunny weather
18 July
- 10.3 median hours of sunny weather
16 July
- 9.9 median hours of sunny weather
02 July
- 9.3 median hours of sunny weather
24 July
- 9.1 median hours of sunny weather
Top Saturdays in July 2027
17 July
- 10.5 median hours of sunny weather
24 July
- 9.1 median hours of sunny weather
03 July
- 8.3 median hours of sunny weather
31 July
- 6.8 median hours of sunny weather
10 July
- 6.7 median hours of sunny weather
Based on data from: 2016-2025
01
60 °F
6.3 h
9.4 h
02
60 °F
9.3 h
6.3 h
03
62 °F
8.3 h
8.6 h
04
61 °F
5.4 h
9.7 h
05
61 °F
7.7 h
9.7 h
06
62 °F
6.4 h
8.9 h
07
63 °F
7.4 h
5.3 h
08
63 °F
7.4 h
6.8 h
09
63 °F
6.7 h
7.3 h
10
65 °F
6.7 h
8.5 h
11
64 °F
8.3 h
9.4 h
12
64 °F
9.1 h
4.9 h
13
64 °F
7.8 h
6.4 h
14
65 °F
6.8 h
6.6 h
15
66 °F
5.8 h
9 h
16
66 °F
9.9 h
6.3 h
17
68 °F
10.5 h
3.6 h
18
68 °F
10.3 h
5.1 h
19
66 °F
8.1 h
7.5 h
20
64 °F
8.5 h
6.5 h
21
65 °F
5.3 h
10 h
22
68 °F
6.8 h
7.1 h
23
68 °F
7.1 h
7.6 h
24
66 °F
9.1 h
6.4 h
25
66 °F
8.3 h
6.1 h
26
64 °F
7.5 h
9.5 h
27
62 °F
5.9 h
10.4 h
28
62 °F
6.8 h
11.5 h
29
63 °F
7.3 h
10.1 h
30
63 °F
6.1 h
11.3 h
31
63 °F
6.8 h
7.5 h
July is warmest in feeling rather than in comfort, with an average maximum temperature of 17.76°C and 7.53 sunshine hours per day. In Letterkenny, that can be lovely for outdoor mingling, but it also comes with the month’s highest historical rain burden in the report at 7.85 precipitation hours per day. The strongest historical date, 17 July, delivered 10.47 sunshine hours and a pleasant 19.78°C maximum, showing what the month can offer on a good day. Because July is also a common holiday period for families, suppliers and accommodation may book up quickly. Reserve guest rooms early and build a covered drinks plan.
Letterkenny, Ulster, Ireland
Top date in August, 2027:
08 August
Top dates with the most sunshine
08 August
- 11.7 median hours of sunny weather
13 August
- 10.6 median hours of sunny weather
07 August
- 10 median hours of sunny weather
04 August
- 9.9 median hours of sunny weather
12 August
- 9.4 median hours of sunny weather
Top Saturdays in August 2027
07 August
- 10 median hours of sunny weather
14 August
- 7.9 median hours of sunny weather
21 August
- 6.7 median hours of sunny weather
28 August
- 5.7 median hours of sunny weather
Based on data from: 2016-2025
01
64 °F
8.3 h
6.8 h
02
65 °F
8.2 h
9.5 h
03
64 °F
7.7 h
11.2 h
04
63 °F
9.9 h
11.8 h
05
63 °F
8.3 h
11.4 h
06
64 °F
8.6 h
10.7 h
07
63 °F
10 h
9.1 h
08
63 °F
11.7 h
7.8 h
09
65 °F
9 h
8.1 h
10
64 °F
8.6 h
7.6 h
11
65 °F
8 h
6.6 h
12
66 °F
9.4 h
7.3 h
13
67 °F
10.6 h
4.7 h
14
67 °F
7.9 h
8.8 h
15
65 °F
7 h
6.4 h
16
65 °F
8.4 h
7.7 h
17
65 °F
6.4 h
10 h
18
64 °F
7 h
12.1 h
19
64 °F
7.5 h
8 h
20
64 °F
6.8 h
10.5 h
21
63 °F
6.7 h
10.8 h
22
64 °F
4.7 h
10.2 h
23
63 °F
7.2 h
9.6 h
24
64 °F
8.3 h
8.8 h
25
63 °F
8.8 h
9.8 h
26
63 °F
7 h
8.5 h
27
63 °F
3.7 h
10.1 h
28
63 °F
5.7 h
7.2 h
29
61 °F
8.1 h
6.3 h
30
63 °F
8.5 h
6.9 h
31
62 °F
8.3 h
6.4 h
August keeps the summer warmth going in Letterkenny, with average maximum temperatures of 17.78°C and 7.95 sunshine hours, but it is the wettest month in the data set at 8.73 precipitation hours per day. That makes it a month of possibility rather than certainty: bright gardens and soft evening light are very achievable, yet you should expect the ground, transport, or outdoor seating to need protection. The strongest historical August date, 08 August, recorded 11.73 sunshine hours, though the weather still carried 7.8 precipitation hours. August also overlaps with school holidays, so accommodation and family travel can be less flexible than they first appear.
Letterkenny, Ulster, Ireland
Top date in September, 2027:
29 September
Top dates with the most sunshine
29 September
- 8.5 median hours of sunny weather
18 September
- 8.2 median hours of sunny weather
05 September
- 7.9 median hours of sunny weather
13 September
- 7.8 median hours of sunny weather
25 September
- 7.8 median hours of sunny weather
Top Saturdays in September 2027
18 September
- 8.2 median hours of sunny weather
25 September
- 7.8 median hours of sunny weather
04 September
- 6.9 median hours of sunny weather
11 September
- 6.1 median hours of sunny weather
Based on data from: 2016-2025
01
64 °F
7.4 h
6.2 h
02
64 °F
5.4 h
8.1 h
03
62 °F
6.4 h
9.1 h
04
62 °F
6.9 h
7.7 h
05
63 °F
7.9 h
7.6 h
06
63 °F
7.5 h
5.7 h
07
66 °F
5.1 h
7.4 h
08
67 °F
5.7 h
7.9 h
09
61 °F
6.9 h
9.5 h
10
62 °F
4.8 h
9.3 h
11
59 °F
6.1 h
9.6 h
12
58 °F
7.2 h
9.2 h
13
59 °F
7.8 h
8.5 h
14
61 °F
5.4 h
8.5 h
15
59 °F
3.3 h
8.4 h
16
60 °F
7.4 h
7.1 h
17
62 °F
6.1 h
5.3 h
18
62 °F
8.2 h
5.5 h
19
62 °F
7.2 h
5.3 h
20
62 °F
6.5 h
4.1 h
21
60 °F
6.2 h
5.2 h
22
59 °F
5.8 h
9.1 h
23
58 °F
5.8 h
5 h
24
60 °F
6.2 h
6 h
25
59 °F
7.8 h
7.5 h
26
59 °F
6.4 h
5.1 h
27
57 °F
4.6 h
8.2 h
28
57 °F
6.5 h
7.8 h
29
56 °F
8.5 h
5.7 h
30
56 °F
4.3 h
9.5 h
September is often appealing in Letterkenny because it still holds 6.37 sunshine hours on average while temperatures stay reasonably mild at 15.9°C. It is a good month for couples who want a calmer post-summer atmosphere without losing all the daylight, though the 7.3 daily precipitation hours mean you should not treat it as a dry-season solution. The strongest historical September date, 29 September, reached 8.47 sunshine hours and a gentler 13.57°C maximum, which suits elegant indoor venues and short outdoor portrait sessions. If you choose September, confirm whether local schools, sports fixtures, or tourism weekends could affect rooms and road movement.
Letterkenny, Ulster, Ireland
Top date in October, 2027:
01 October
Top dates with the most sunshine
01 October
- 6.3 median hours of sunny weather
12 October
- 6.2 median hours of sunny weather
11 October
- 5.9 median hours of sunny weather
02 October
- 5.8 median hours of sunny weather
13 October
- 5.7 median hours of sunny weather
Top Saturdays in October 2027
02 October
- 5.8 median hours of sunny weather
16 October
- 4.6 median hours of sunny weather
09 October
- 4.3 median hours of sunny weather
30 October
- 4.2 median hours of sunny weather
23 October
- 4.2 median hours of sunny weather
Based on data from: 2016-2025
01
56 °F
6.3 h
8.4 h
02
57 °F
5.8 h
7.4 h
03
57 °F
3.6 h
7 h
04
59 °F
2.9 h
12.6 h
05
57 °F
5.5 h
9.6 h
06
57 °F
3.9 h
7.7 h
07
59 °F
3.9 h
10.6 h
08
59 °F
4.9 h
9.7 h
09
58 °F
4.3 h
7.3 h
10
57 °F
3.9 h
7.6 h
11
55 °F
5.9 h
5 h
12
56 °F
6.2 h
4.7 h
13
55 °F
5.7 h
6.5 h
14
53 °F
4.9 h
5.8 h
15
54 °F
4.9 h
3.1 h
16
55 °F
4.6 h
8.3 h
17
55 °F
3.4 h
6.8 h
18
55 °F
4.8 h
4.6 h
19
56 °F
3.2 h
10.5 h
20
56 °F
4.4 h
7.3 h
21
54 °F
4.4 h
7 h
22
54 °F
5.2 h
6.7 h
23
54 °F
4.2 h
7.8 h
24
53 °F
5.6 h
5.7 h
25
53 °F
3.4 h
5.9 h
26
53 °F
5.5 h
10.3 h
27
53 °F
3.9 h
6.2 h
28
53 °F
4 h
6.7 h
29
53 °F
4.5 h
6.6 h
30
52 °F
4.2 h
3.5 h
31
53 °F
1.1 h
10.3 h
October in Letterkenny is the point where autumn becomes a real planning factor. The month averages 4.48 sunshine hours, 7.33 precipitation hours, and a maximum temperature of 12.9°C, so the day can feel crisp, dim, and damp even when it is otherwise beautiful. That makes indoor atmosphere especially important: candles, good lighting, and a venue with clear arrival shelter will matter more than in summer. The strongest historical October date, 01 October, was still wet at 8.4 precipitation hours, which is a good reminder that early autumn does not guarantee a break in the weather. Plan transport carefully and allow for longer portrait timings indoors.
Letterkenny, Ulster, Ireland
Top date in November, 2027:
03 November
Top dates with the most sunshine
03 November
- 4.9 median hours of sunny weather
01 November
- 4.3 median hours of sunny weather
07 November
- 4.2 median hours of sunny weather
25 November
- 4.2 median hours of sunny weather
10 November
- 4.1 median hours of sunny weather
Top Saturdays in November 2027
20 November
- 3.4 median hours of sunny weather
27 November
- 3.4 median hours of sunny weather
06 November
- 3.3 median hours of sunny weather
13 November
- 3.3 median hours of sunny weather
Based on data from: 2016-2025
01
52 °F
4.3 h
9.1 h
02
50 °F
3 h
7.5 h
03
51 °F
4.9 h
8.4 h
04
51 °F
4 h
5.9 h
05
51 °F
4 h
5.4 h
06
52 °F
3.3 h
7.9 h
07
52 °F
4.2 h
6.2 h
08
52 °F
3.1 h
7.6 h
09
52 °F
3.5 h
8.8 h
10
51 °F
4.1 h
5.2 h
11
51 °F
2.2 h
9.6 h
12
51 °F
3.6 h
8.5 h
13
51 °F
3.3 h
6.5 h
14
52 °F
1.4 h
9.2 h
15
51 °F
3.6 h
3.9 h
16
50 °F
2.8 h
6.3 h
17
49 °F
2.3 h
6.8 h
18
49 °F
3 h
7.8 h
19
47 °F
2.2 h
8.5 h
20
47 °F
3.4 h
7.8 h
21
46 °F
3.7 h
7.1 h
22
46 °F
2.9 h
5.7 h
23
47 °F
3 h
6.2 h
24
47 °F
3.2 h
7.4 h
25
45 °F
4.2 h
5 h
26
48 °F
2.7 h
6.3 h
27
47 °F
3.4 h
5.5 h
28
46 °F
3.5 h
5.3 h
29
45 °F
2.6 h
4.5 h
30
46 °F
2.1 h
6.8 h
November is a distinctly indoor wedding month in Letterkenny, with only 3.24 sunshine hours on average and an average maximum temperature of 9.56°C. Rain is still part of the picture at 6.89 precipitation hours per day, but the bigger issue is atmosphere: the short days mean ceremonies need to be timed with intention if you want any natural light at all. The strongest historical November date, 03 November, reached 4.85 sunshine hours, which is useful but limited. November can still produce a warm, intimate celebration if your venue is well-lit and your guests can move quickly between arrival, ceremony, and reception spaces without weather exposure.
Letterkenny, Ulster, Ireland
Top date in December, 2027:
04 December
Top dates with the most sunshine
04 December
- 3.7 median hours of sunny weather
03 December
- 3.2 median hours of sunny weather
26 December
- 3.2 median hours of sunny weather
17 December
- 3 median hours of sunny weather
05 December
- 3 median hours of sunny weather
Top Saturdays in December 2027
04 December
- 3.7 median hours of sunny weather
18 December
- 1.6 median hours of sunny weather
11 December
- 1.6 median hours of sunny weather
25 December
- 0.9 median hours of sunny weather
Based on data from: 2016-2025
01
47 °F
2.3 h
4.2 h
02
46 °F
1.7 h
5.2 h
03
45 °F
3.2 h
3 h
04
44 °F
3.7 h
3.8 h
05
46 °F
3 h
5.3 h
06
48 °F
1.4 h
8.9 h
07
49 °F
0.7 h
10 h
08
46 °F
2.8 h
12.8 h
09
46 °F
2.5 h
6.6 h
10
46 °F
2.5 h
7.1 h
11
44 °F
1.6 h
6.9 h
12
44 °F
1.8 h
5.7 h
13
44 °F
2.5 h
7.5 h
14
46 °F
1.9 h
6.6 h
15
47 °F
2.6 h
9.1 h
16
47 °F
1.8 h
6.7 h
17
48 °F
3 h
5.3 h
18
50 °F
1.6 h
9 h
19
48 °F
2.1 h
5.5 h
20
46 °F
2.1 h
8.6 h
21
46 °F
1.6 h
8.6 h
22
47 °F
2.5 h
8.5 h
23
48 °F
1.7 h
10.2 h
24
48 °F
1.1 h
8.2 h
25
48 °F
0.9 h
8.3 h
26
45 °F
3.2 h
4.6 h
27
46 °F
1.6 h
8.2 h
28
46 °F
2.5 h
5.6 h
29
47 °F
2.1 h
6.8 h
30
47 °F
1.7 h
5.7 h
31
46 °F
1.8 h
8.6 h
December is the darkest month in Letterkenny, averaging just 2.11 sunshine hours and 7.13 precipitation hours per day, with a cool maximum temperature of 8.07°C. It is a good fit for couples who want a festive, candlelit reception and are happy to lean fully into indoor styling rather than relying on views or outdoor time. The strongest historical December date, 04 December, only reached 3.69 sunshine hours, so daylight should be treated as a limited resource. If you marry in December, keep the ceremony earlier, choose a venue with strong heating and lighting, and allow guests extra time for winter travel on local roads.