Average annual temperature is 10.9 °C
Absolute maximum temperature: 25.7 °C
Absolute minimum temperature: -1.0 °C
Number of sunny days: 51 days
Number of rainy days: 314 days
Look at detailed online map of Ballycastle
* Weather data for Ballycastle Ireland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.8 | 13.2 | 14.1 | 17.1 | 18.8 | 25.7 | 21.5 | 22.3 | 25.2 | 19.6 | 13.1 | 12.7 |
| Average daytime temperature (°C) | 8.3 | 9.9 | 9.4 | 11.9 | 14.5 | 19.2 | 16.1 | 17.1 | 17.0 | 13.5 | 10.2 | 9.3 |
| Average temperature (°C) | 6.5 | 8.1 | 7.1 | 9.2 | 12.0 | 16.1 | 14.2 | 15.0 | 14.4 | 11.6 | 8.7 | 7.9 |
| Average night temperature (°C) | 4.6 | 5.9 | 4.8 | 6.6 | 9.4 | 13.2 | 12.3 | 13.1 | 11.9 | 9.9 | 7.0 | 6.4 |
| Absolute minimum temperature (°C) | -1.0 | 0.3 | 0.3 | 1.6 | 7.4 | 10.6 | 10.2 | 10.5 | 7.2 | 4.9 | 2.9 | 0.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 | 17.0 | 17.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 8.0 | 9.7 | 11.9 | 14.1 | 16.0 | 17.1 | 16.6 | 14.8 | 12.7 | 10.5 | 8.5 | 7.4 |
| Daylight minimum duration (h) | 7.0 | 8.0 | 10.0 | 13.0 | 15.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 |
| Sunshine mean duration (h) | 2.7 | 3.3 | 5.5 | 7.4 | 8.5 | 10.9 | 8.2 | 8.5 | 6.9 | 3.9 | 4.0 | 2.1 |
| Precipitation (mm) | 102 | 54 | 121 | 84 | 47 | 109 | 188 | 159 | 117 | 175 | 113 | 171 |
| Sunny days | 3 | 8 | 2 | 6 | 7 | 9 | 0 | 2 | 5 | 2 | 5 | 2 |
| Rainy days | 28 | 20 | 29 | 24 | 24 | 21 | 31 | 29 | 25 | 29 | 25 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ballycastle during the most sunny months:
Months with the longest average daylight duration in Ballycastle:
The largest precipitation sum in Ballycastle is at