Average annual temperature is 12.5 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -4.1 °C
Number of sunny days: 134 days
Number of rainy days: 231 days
Look at detailed online map of Le Grand Chesnay
* Weather data for Le Grand Chesnay 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) | 14.3 | 14.0 | 18.7 | 19.0 | 23.9 | 32.1 | 29.7 | 30.3 | 33.4 | 28.4 | 16.5 | 13.7 |
| Average daytime temperature (°C) | 8.2 | 9.4 | 11.9 | 13.3 | 18.2 | 25.1 | 23.2 | 22.8 | 24.4 | 18.4 | 11.4 | 9.9 |
| Average temperature (°C) | 5.8 | 5.6 | 8.4 | 9.2 | 13.5 | 19.6 | 18.6 | 18.5 | 19.3 | 14.1 | 8.9 | 7.6 |
| Average night temperature (°C) | 3.5 | 2.2 | 5.2 | 5.1 | 8.6 | 13.7 | 14.1 | 14.5 | 14.7 | 10.4 | 6.6 | 5.4 |
| Absolute minimum temperature (°C) | -2.7 | -3.7 | -2.5 | -1.7 | 5.3 | 8.7 | 10.5 | 11.5 | 8.8 | 4.1 | 0.7 | -4.1 |
| 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 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.8 | 10.2 | 11.9 | 13.7 | 15.3 | 16.1 | 15.7 | 14.4 | 12.6 | 10.8 | 9.2 | 8.3 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.5 | 5.7 | 5.8 | 8.2 | 11.1 | 12.4 | 11.1 | 10.1 | 9.6 | 6.7 | 4.1 | 3.1 |
| Precipitation (mm) | 57 | 3 | 81 | 60 | 53 | 32 | 112 | 86 | 49 | 78 | 107 | 62 |
| Sunny days | 9 | 18 | 6 | 9 | 14 | 19 | 7 | 10 | 15 | 13 | 3 | 11 |
| Rainy days | 22 | 10 | 25 | 21 | 17 | 11 | 24 | 21 | 15 | 18 | 27 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Le Grand Chesnay during the most sunny months:
Months with the longest average daylight duration in Le Grand Chesnay:
The largest precipitation sum in Le Grand Chesnay is at