Average annual temperature is 11.4 °C
Absolute maximum temperature: 25.3 °C
Absolute minimum temperature: -1.3 °C
Number of sunny days: 51 days
Number of rainy days: 314 days
Look at detailed online map of Derreen
* Weather data for Derreen 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 | 13.0 | 13.1 | 17.0 | 22.2 | 24.5 | 20.9 | 22.1 | 25.3 | 17.5 | 13.4 | 12.4 |
| Average daytime temperature (°C) | 9.0 | 10.0 | 9.5 | 12.2 | 15.1 | 20.1 | 16.2 | 17.1 | 17.3 | 13.5 | 10.8 | 9.7 |
| Average temperature (°C) | 7.4 | 8.5 | 7.5 | 9.7 | 12.5 | 16.9 | 14.6 | 15.3 | 15.1 | 11.9 | 9.3 | 8.5 |
| Average night temperature (°C) | 5.6 | 6.7 | 5.4 | 7.2 | 10.1 | 14.0 | 13.1 | 13.8 | 13.1 | 10.3 | 7.9 | 7.1 |
| Absolute minimum temperature (°C) | -1.0 | 2.1 | -1.3 | 2.2 | 8.0 | 10.9 | 10.7 | 11.5 | 10.0 | 6.8 | 2.6 | 0.5 |
| 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) | 8.1 | 9.8 | 11.9 | 14.0 | 16.0 | 17.0 | 16.5 | 14.8 | 12.7 | 10.6 | 8.6 | 7.5 |
| 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 | 3.1 | 5.2 | 7.8 | 9.2 | 11.4 | 8.5 | 8.9 | 6.9 | 4.6 | 4.1 | 2.4 |
| Precipitation (mm) | 183 | 88 | 211 | 97 | 76 | 149 | 223 | 221 | 162 | 162 | 202 | 266 |
| Sunny days | 2 | 6 | 5 | 6 | 9 | 7 | 0 | 2 | 3 | 4 | 5 | 2 |
| Rainy days | 29 | 22 | 26 | 24 | 22 | 23 | 31 | 29 | 27 | 27 | 25 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Derreen during the most sunny months:
Months with the longest average daylight duration in Derreen:
The largest precipitation sum in Derreen is at