Average annual temperature is 10.8 °C
Absolute maximum temperature: 30.3 °C
Absolute minimum temperature: -5.1 °C
Number of sunny days: 123 days
Number of rainy days: 242 days
Look at detailed online map of Isham
* Weather data for Isham 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) | 12.3 | 14.7 | 14.9 | 16.3 | 19.2 | 28.6 | 26.3 | 25.9 | 30.3 | 22.4 | 14.1 | 13.1 |
| Average daytime temperature (°C) | 7.5 | 9.4 | 9.4 | 12.2 | 16.1 | 21.8 | 19.9 | 20.5 | 21.6 | 15.7 | 9.5 | 8.8 |
| Average temperature (°C) | 4.5 | 5.9 | 6.5 | 8.1 | 12.0 | 16.8 | 16.3 | 16.4 | 17.0 | 12.2 | 6.8 | 6.7 |
| Average night temperature (°C) | 1.5 | 2.8 | 3.4 | 4.1 | 7.8 | 11.7 | 12.6 | 12.3 | 12.7 | 9.0 | 4.1 | 4.2 |
| Absolute minimum temperature (°C) | -5.1 | -3.3 | -4.3 | -1.2 | 3.8 | 6.6 | 9.2 | 9.0 | 7.8 | 2.1 | -3.6 | -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) | 8.3 | 9.9 | 11.9 | 13.9 | 15.7 | 16.7 | 16.2 | 14.6 | 12.7 | 10.6 | 8.8 | 7.8 |
| 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) | 4.4 | 5.4 | 4.5 | 8.1 | 9.7 | 11.9 | 10.1 | 10.3 | 8.1 | 5.7 | 4.3 | 2.2 |
| Precipitation (mm) | 47 | 9 | 97 | 52 | 46 | 62 | 98 | 65 | 54 | 109 | 60 | 105 |
| Sunny days | 15 | 16 | 4 | 9 | 13 | 15 | 1 | 8 | 12 | 9 | 11 | 10 |
| Rainy days | 16 | 12 | 27 | 21 | 18 | 15 | 30 | 23 | 18 | 22 | 19 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Isham during the most sunny months:
Months with the longest average daylight duration in Isham:
The largest precipitation sum in Isham is at