Best Time to Visit Letterkenny: Month-by-Month Guide
Best months for Letterkenny: September, June, July, August.
- Best months for Letterkenny: September, June, July, August.
- Peak season is September, June, July. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Wettest months: November, January, December.
- The least pleasant month is January (score 4.1).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 7°C | 3°C | 108 mm | 19 | – | – | 4.1 |
| February | 8°C | 3°C | 93 mm | 16 | – | – | 4.6 |
| March | 9°C | 4°C | 88 mm | 17 | – | – | 4.7 |
| April | 11°C | 5°C | 80 mm | 16 | – | – | 5.2 |
| May | 14°C | 7°C | 86 mm | 16 | – | – | 5.6 |
| June | 16°C | 10°C | 92 mm | 16 | – | – | 5.9 |
| July | 17°C | 12°C | 101 mm | 18 | – | – | 5.8 |
| August | 17°C | 12°C | 105 mm | 18 | – | – | 5.8 |
| September | 16°C | 10°C | 88 mm | 15 | – | – | 6.0 |
| October | 13°C | 8°C | 105 mm | 17 | – | – | 5.2 |
| November | 10°C | 5°C | 110 mm | 19 | – | – | 4.4 |
| December | 8°C | 3°C | 113 mm | 18 | – | – | 4.2 |
Frequently asked questions
When is the best time to visit Letterkenny?
The best months are September, June, July, August.
When is the rainy season in Letterkenny?
The wettest months are November, January, December.