Average annual temperature is 13.6 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 236 days
Number of rainy days: 118 days
Number of snow days: 11 days
Look at detailed online map of Chepstow
* Weather data for Chepstow United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.1 | 17.0 | 23.4 | 30.4 | 33.0 | 36.9 | 39.7 | 40.8 | 36.9 | 33.2 | 22.1 | 16.5 |
| Average daytime temperature (°C) | 4.6 | 8.8 | 10.7 | 21.3 | 26.9 | 30.6 | 32.0 | 32.9 | 29.9 | 20.4 | 12.9 | 7.7 |
| Average temperature (°C) | -0.4 | 1.4 | 4.4 | 13.0 | 19.9 | 24.2 | 25.7 | 26.3 | 23.3 | 14.5 | 7.0 | 3.2 |
| Average night temperature (°C) | -4.2 | -3.7 | -0.2 | 6.6 | 13.8 | 18.3 | 20.5 | 21.0 | 17.5 | 9.6 | 2.5 | -0.2 |
| Absolute minimum temperature (°C) | -14.2 | -15.1 | -9.1 | -3.5 | 4.8 | 11.8 | 15.0 | 14.2 | 11.5 | -5.6 | -5.6 | -5.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.5 | 8.6 | 8.1 | 10.6 | 11.0 | 12.6 | 11.6 | 11.9 | 10.3 | 7.9 | 7.1 | 5.3 |
| Precipitation (mm) | 43 | 40 | 26 | 55 | 33 | 53 | 92 | 64 | 22 | 36 | 32 | 60 |
| Sunny days | 22 | 21 | 19 | 25 | 15 | 17 | 12 | 23 | 21 | 20 | 23 | 18 |
| Rainy days | 5 | 5 | 10 | 5 | 16 | 13 | 19 | 8 | 9 | 11 | 5 | 12 |
| Snow days | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Chepstow during the most sunny months:
The largest precipitation sum in Chepstow is at