Average annual temperature is 9.9 °C
Absolute maximum temperature: 25.4 °C
Absolute minimum temperature: -4.8 °C
Number of sunny days: 92 days
Number of rainy days: 271 days
Number of snow days: 2 days
Look at detailed online map of Cwm Clydach
* Weather data for Cwm Clydach 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) | 10.7 | 10.2 | 12.2 | 14.8 | 19.7 | 24.5 | 22.3 | 22.5 | 25.4 | 19.9 | 12.4 | 11.2 |
| Average daytime temperature (°C) | 6.5 | 7.7 | 8.2 | 10.7 | 16.0 | 20.0 | 16.8 | 17.7 | 18.6 | 13.7 | 8.9 | 8.1 |
| Average temperature (°C) | 4.2 | 5.1 | 5.8 | 7.4 | 12.0 | 15.9 | 14.1 | 14.6 | 15.5 | 11.2 | 6.6 | 6.3 |
| Average night temperature (°C) | 1.8 | 2.3 | 3.7 | 3.9 | 7.9 | 11.8 | 11.2 | 11.6 | 12.3 | 9.2 | 4.3 | 4.2 |
| Absolute minimum temperature (°C) | -4.0 | -3.1 | -1.7 | -0.6 | 5.3 | 6.5 | 7.8 | 8.1 | 5.4 | 3.2 | -3.7 | -4.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.4 | 10.0 | 11.9 | 13.9 | 15.6 | 16.6 | 16.1 | 14.6 | 12.7 | 10.7 | 8.9 | 7.9 |
| Daylight minimum duration (h) | 7.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 3.4 | 4.5 | 4.1 | 7.4 | 11.2 | 11.9 | 8.9 | 8.5 | 7.5 | 5.3 | 3.7 | 1.9 |
| Precipitation (mm) | 294 | 37 | 285 | 111 | 55 | 74 | 260 | 149 | 167 | 212 | 161 | 324 |
| Sunny days | 10 | 13 | 3 | 10 | 14 | 14 | 1 | 3 | 7 | 7 | 7 | 3 |
| Rainy days | 20 | 15 | 27 | 20 | 17 | 16 | 30 | 28 | 23 | 24 | 23 | 28 |
| Snow days | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Cwm Clydach during the most sunny months:
Months with the longest average daylight duration in Cwm Clydach:
The largest precipitation sum in Cwm Clydach is at