Letterkenny weather in November
Temperature, sea and sunshine in November: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in November
Poor
Best time to visit: April – June
What is the weather like in Letterkenny in November?
In November, Letterkenny is cold: daytime highs average 9 °C, and nights cool down to about 5 °C. The sea averages 11.8 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. It rains often – on about 19 days, adding up to 110 mm. All in all, November is not an ideal month for a holiday in Letterkenny.
November compared
How the weather changes from October to December. Tap a month to open it.
| OctoberOct | NovemberNov | DecemberDec | |
|---|---|---|---|
| Score | 0 | 0 | 0 |
| Day | 13° | 9° | 8° |
| Night | 8° | 5° | 3° |
| Sea | 13° | 12° | 10° |
| Sun | 3 h | 2 h | 1 h |
| Rain days | 18 | 19 | 19 |
More details for November
- Daylight
- 8 h 29 min08:01 – 16:30
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 25 km/haverage daily peakAll months
- Cloud cover
- 79 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+0Europe/Dublin
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in November
- Warm jacket
- Rain jacket or umbrella
Letterkenny in November: quick answers
Is Letterkenny hot in November?
No. In November, Letterkenny is cold: daytime highs average 9 °C and nights drop to about 5 °C.
Can you swim in Letterkenny in November?
Only if you don't mind cold water: in November the sea averages just 11.8 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Letterkenny in November?
It rains often – on about 19 days, adding up to 110 mm.
Letterkenny month by month
The whole year in LetterkennyAll destinations: IrelandWhere to go in NovemberSea temperature in November
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences