Average annual temperature is 12.8 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -4.2 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Helléan
* Weather data for Helléan 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) | 13.2 | 14.6 | 17.5 | 19.5 | 23.4 | 28.6 | 28.6 | 28.8 | 32.2 | 26.5 | 15.7 | 14.7 |
| Average daytime temperature (°C) | 9.0 | 10.3 | 12.3 | 14.7 | 18.6 | 24.7 | 22.0 | 22.6 | 24.1 | 18.6 | 12.6 | 11.2 |
| Average temperature (°C) | 6.5 | 6.0 | 9.0 | 10.3 | 14.0 | 19.1 | 17.9 | 18.1 | 19.1 | 14.2 | 9.8 | 8.7 |
| Average night temperature (°C) | 4.0 | 2.3 | 5.9 | 6.0 | 9.5 | 13.7 | 13.7 | 14.1 | 14.7 | 10.4 | 7.0 | 6.1 |
| Absolute minimum temperature (°C) | -4.2 | -3.1 | -1.6 | 1.5 | 5.5 | 9.2 | 11.0 | 9.6 | 7.3 | 6.4 | -0.4 | -1.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 5.8 | 6.9 | 8.9 | 11.9 | 12.6 | 10.1 | 9.9 | 9.4 | 6.3 | 4.9 | 3.9 |
| Precipitation (mm) | 67 | 18 | 124 | 89 | 43 | 32 | 98 | 57 | 65 | 92 | 108 | 79 |
| Sunny days | 8 | 18 | 6 | 11 | 13 | 15 | 3 | 12 | 11 | 13 | 8 | 11 |
| Rainy days | 23 | 10 | 25 | 19 | 18 | 15 | 28 | 19 | 19 | 18 | 22 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Helléan during the most sunny months:
Months with the longest average daylight duration in Helléan:
The largest precipitation sum in Helléan is at