By knowing how cold, mild, warm, or hot the weather in Letterkenny, you will find it easier to plan your days.
Our 14 day weather forecast for Letterkenny becomes more accurate the closer to the date of your visit, so always be sure to check in frequently for any weather updates.
| Date | Temperatures | Wind | |||
|---|---|---|---|---|---|
| Saturday, 19 September | 14 ° / 11 ° |  | Patchy rain possible | 20 Km/h | |
| Sunday, 20 September | 15 ° / 8 ° |  | Overcast | 12 Km/h | |
| Monday, 21 September | 22 ° / 12 ° |  | Mist | 6 Km/h | |
| Tuesday, 22 September | 19 ° / 12 ° | | Patchy rain possible | 3 Km/h | |
| Wednesday, 23 September | 15 ° / 7 ° | | Overcast | 5 Km/h | |
| Thursday, 24 September | 20 ° / 9 ° | | Overcast | 15 Km/h | |
| Friday, 25 September | 15 ° / 10 ° |  | Light rain shower | 8 Km/h | |
| Saturday, 26 September | 16 ° / 8 ° |  | Fog | 6 Km/h | |
| Sunday, 27 September | 17 ° / 7 ° | | Mist | 8 Km/h | |
| Monday, 28 September | 21 ° / 9 ° | | Mist | 6 Km/h | |
| Tuesday, 29 September | 20 ° / 11 ° |  | Sunny | 7 Km/h | |
| Wednesday, 30 September | 21 ° / 10 ° |  | Partly cloudy | 6 Km/h | |
| Thursday, 1 October | 19 ° / 13 ° | | Patchy rain possible | 7 Km/h | |
| Friday, 2 October | 20 ° / 11 ° | | Patchy rain possible | 10 Km/h | |
| Further Ahead | |||||
