Letterkenny Weather in November
What's the weather like in Letterkenny (Ulster) in November 2025?
The climate in Letterkenny during November can be summarized as cool and wet.
November is in the fall / autumn in Letterkenny and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 9°C (48°F), whilst at night 3°C (37°F) is normal.
| Daytime temperature | 8.7°C 47.6°F |
|---|---|
| Nightly temperature | 3°C 37.3°F |
| Average temperature | 5.8°C 42.4°F |
| Daily sunshine | 2 hrs |
| Avg rainfall | 137 mm 5.4 ins |
| Rainy days | 23 days |
| Sea temperature | 11.6°C 52.9°F |
| Humidity | 92% |
| Windspeed | 24.8kph 16 mph |
On average November is the 2nd wettest month of the year in Letterkenny with around 137mm 5.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 2 hours of sunshine per day.
November temperatures in Letterkenny
November rainfall
November hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Letterkenny in November 2025.
Other monthly averages
Best places to visit in November
Letterkenny weather stats
| Hottest month: | July | 16.8°C 62.2°F |
|---|---|---|
| Driest month: | April | 74mm 2.9ins |
| Sunniest month: | April | 5.3hrs |
| Coldest month: | January | 6.4°C 43.5°F |
| Wettest month: | December | 141mm 5.6ins |
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