Average annual temperature is 14.8 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: -3.4 °C
Number of sunny days: 149 days
Number of rainy days: 214 days
Number of snow days: 2 days
Look at detailed online map of Herm
* Weather data for Herm France is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 21.6 | 19.4 | 28.0 | 29.6 | 29.3 | 31.0 | 36.2 | 38.8 | 34.8 | 32.8 | 23.2 | 18.5 |
| Average daytime temperature (°C) | 10.9 | 12.7 | 16.9 | 18.8 | 21.5 | 26.5 | 26.8 | 28.5 | 27.5 | 23.3 | 15.3 | 12.7 |
| Average temperature (°C) | 6.7 | 6.3 | 11.6 | 13.2 | 16.2 | 20.9 | 21.2 | 22.1 | 21.2 | 17.6 | 11.5 | 8.8 |
| Average night temperature (°C) | 3.6 | 1.6 | 7.2 | 8.3 | 11.7 | 16.4 | 16.4 | 17.1 | 16.4 | 13.2 | 8.3 | 5.8 |
| Absolute minimum temperature (°C) | -3.4 | -2.3 | -2.6 | -0.3 | 7.3 | 12.7 | 13.1 | 11.3 | 10.5 | 9.3 | 0.6 | 0.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 5.1 | 7.5 | 7.6 | 8.8 | 11.6 | 11.7 | 11.5 | 11.2 | 9.9 | 7.5 | 5.1 | 4.3 |
| Precipitation (mm) | 144 | 31 | 104 | 100 | 69 | 101 | 29 | 39 | 90 | 133 | 234 | 119 |
| Sunny days | 14 | 21 | 11 | 12 | 8 | 7 | 15 | 15 | 17 | 13 | 6 | 10 |
| Rainy days | 16 | 6 | 20 | 18 | 23 | 23 | 16 | 16 | 13 | 18 | 24 | 21 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Herm during the most sunny months:
Months with the longest average daylight duration in Herm:
The largest precipitation sum in Herm is at