Average annual temperature is 11.7 °C
Absolute maximum temperature: 31.6 °C
Absolute minimum temperature: -4.0 °C
Number of sunny days: 134 days
Number of rainy days: 231 days
Look at detailed online map of Spelthorne District
* Weather data for Spelthorne District 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) | 13.0 | 13.6 | 15.1 | 17.5 | 20.9 | 29.0 | 27.1 | 24.9 | 31.6 | 23.5 | 14.9 | 13.8 |
| Average daytime temperature (°C) | 8.1 | 9.8 | 10.4 | 13.2 | 17.2 | 23.2 | 21.0 | 21.4 | 23.1 | 17.0 | 10.8 | 10.0 |
| Average temperature (°C) | 5.3 | 6.2 | 7.6 | 8.9 | 12.8 | 18.0 | 17.3 | 17.3 | 18.2 | 13.3 | 7.9 | 7.9 |
| Average night temperature (°C) | 2.2 | 2.9 | 4.7 | 4.6 | 8.4 | 12.8 | 13.4 | 13.1 | 13.7 | 10.0 | 5.1 | 5.5 |
| Absolute minimum temperature (°C) | -4.0 | -2.7 | -3.1 | -0.4 | 5.1 | 7.7 | 9.5 | 10.3 | 8.5 | 2.5 | -2.4 | -3.3 |
| 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 | 16.5 | 16.1 | 14.6 | 12.6 | 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) | 4.1 | 4.5 | 4.4 | 7.6 | 10.0 | 12.4 | 10.1 | 9.9 | 8.8 | 6.5 | 4.3 | 2.4 |
| Precipitation (mm) | 57 | 15 | 99 | 74 | 29 | 43 | 98 | 78 | 59 | 102 | 89 | 79 |
| Sunny days | 15 | 19 | 4 | 9 | 13 | 15 | 5 | 8 | 13 | 11 | 11 | 11 |
| Rainy days | 16 | 9 | 27 | 21 | 18 | 15 | 26 | 23 | 17 | 20 | 19 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Spelthorne District during the most sunny months:
Months with the longest average daylight duration in Spelthorne District:
The largest precipitation sum in Spelthorne District is at