Average annual temperature is 10.9 °C
Absolute maximum temperature: 27.3 °C
Absolute minimum temperature: -4.5 °C
Number of sunny days: 84 days
Number of rainy days: 277 days
Number of snow days: 4 days
Look at detailed online map of Graig-fechan
* Weather data for Graig-fechan United Kingdom is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.6 | 13.3 | 14.3 | 17.2 | 20.3 | 26.8 | 24.4 | 25.4 | 27.3 | 21.8 | 14.1 | 12.9 |
| Average daytime temperature (°C) | 8.0 | 9.5 | 9.2 | 11.9 | 16.5 | 21.5 | 18.6 | 18.6 | 19.7 | 14.7 | 9.6 | 9.1 |
| Average temperature (°C) | 5.8 | 6.8 | 6.6 | 8.6 | 12.5 | 16.9 | 15.5 | 15.6 | 16.3 | 11.9 | 7.5 | 7.1 |
| Average night temperature (°C) | 3.6 | 4.4 | 4.1 | 5.3 | 8.8 | 12.4 | 12.6 | 12.6 | 12.9 | 9.4 | 5.1 | 5.0 |
| Absolute minimum temperature (°C) | -1.9 | -1.1 | -4.5 | 0.1 | 5.4 | 7.4 | 9.6 | 9.1 | 6.7 | 4.1 | -2.5 | -3.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 8.2 | 9.9 | 11.9 | 14.0 | 15.9 | 16.9 | 16.4 | 14.7 | 12.7 | 10.6 | 8.7 | 7.6 |
| Daylight minimum duration (h) | 7.0 | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 |
| Sunshine mean duration (h) | 3.9 | 4.9 | 4.6 | 7.2 | 11.2 | 12.2 | 9.8 | 9.3 | 6.9 | 4.6 | 3.7 | 1.9 |
| Precipitation (mm) | 91 | 17 | 154 | 77 | 33 | 63 | 162 | 105 | 89 | 172 | 98 | 144 |
| Sunny days | 8 | 11 | 1 | 9 | 15 | 14 | 2 | 1 | 7 | 8 | 5 | 3 |
| Rainy days | 22 | 17 | 27 | 21 | 16 | 16 | 29 | 30 | 23 | 23 | 25 | 28 |
| Snow days | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Graig-fechan during the most sunny months:
Months with the longest average daylight duration in Graig-fechan:
The largest precipitation sum in Graig-fechan is at