Average annual temperature is 10.9 °C
Absolute maximum temperature: 29.2 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 128 days
Number of rainy days: 237 days
Look at detailed online map of Alton
* Weather data for Alton 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) | 12.1 | 12.6 | 13.4 | 16.6 | 20.4 | 27.5 | 25.2 | 23.6 | 29.2 | 21.5 | 13.9 | 12.8 |
| Average daytime temperature (°C) | 7.2 | 8.8 | 9.2 | 11.8 | 16.3 | 22.1 | 19.4 | 19.9 | 21.4 | 15.7 | 9.9 | 9.2 |
| Average temperature (°C) | 4.5 | 5.6 | 6.6 | 7.9 | 12.0 | 17.1 | 16.0 | 16.1 | 17.2 | 12.5 | 7.3 | 7.2 |
| Average night temperature (°C) | 1.7 | 2.8 | 4.1 | 4.1 | 7.7 | 12.0 | 12.5 | 12.5 | 13.2 | 10.0 | 4.7 | 5.0 |
| Absolute minimum temperature (°C) | -5.4 | -2.6 | -2.0 | -1.5 | 4.5 | 6.6 | 9.4 | 9.4 | 7.5 | 2.5 | -2.0 | -3.4 |
| 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) | 8.5 | 10.0 | 11.9 | 13.9 | 15.6 | 16.5 | 16.0 | 14.5 | 12.6 | 10.7 | 8.9 | 8.0 |
| 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) | 3.9 | 4.3 | 3.8 | 7.7 | 10.2 | 12.7 | 10.0 | 9.5 | 8.7 | 6.5 | 4.2 | 2.5 |
| Precipitation (mm) | 100 | 13 | 139 | 102 | 39 | 50 | 108 | 74 | 56 | 126 | 99 | 105 |
| Sunny days | 15 | 16 | 4 | 8 | 15 | 16 | 5 | 5 | 13 | 11 | 11 | 9 |
| Rainy days | 16 | 12 | 27 | 22 | 16 | 14 | 26 | 26 | 17 | 20 | 19 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Alton during the most sunny months:
Months with the longest average daylight duration in Alton:
The largest precipitation sum in Alton is at