Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -4.2 °C
Number of sunny days: 134 days
Number of rainy days: 230 days
Number of snow days: 1 day
Look at detailed online map of Thiverval-Grignon
* Weather data for Thiverval-Grignon 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) | 14.8 | 14.1 | 18.9 | 20.1 | 24.9 | 31.2 | 32.1 | 30.8 | 34.1 | 27.5 | 16.5 | 13.8 |
| Average daytime temperature (°C) | 7.6 | 9.2 | 11.6 | 13.5 | 18.7 | 26.0 | 24.5 | 23.6 | 24.9 | 18.7 | 11.2 | 9.3 |
| Average temperature (°C) | 5.4 | 5.4 | 8.3 | 9.3 | 14.0 | 20.5 | 19.8 | 19.3 | 19.8 | 14.5 | 8.6 | 7.1 |
| Average night temperature (°C) | 3.0 | 2.1 | 4.8 | 5.1 | 9.2 | 14.7 | 15.0 | 15.0 | 15.0 | 10.7 | 6.1 | 5.0 |
| Absolute minimum temperature (°C) | -3.1 | -4.2 | -2.7 | -0.4 | 5.2 | 9.1 | 11.2 | 11.1 | 9.0 | 3.9 | -0.3 | -3.7 |
| 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 | 14.3 | 12.6 | 10.8 | 9.2 | 8.3 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.7 | 5.2 | 6.2 | 7.8 | 11.1 | 12.6 | 10.9 | 9.9 | 9.5 | 6.8 | 4.5 | 2.4 |
| Precipitation (mm) | 66 | 3 | 78 | 63 | 64 | 49 | 90 | 125 | 81 | 101 | 97 | 65 |
| Sunny days | 9 | 18 | 6 | 9 | 16 | 20 | 9 | 5 | 18 | 13 | 2 | 9 |
| Rainy days | 22 | 10 | 25 | 21 | 15 | 10 | 22 | 26 | 12 | 18 | 28 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Thiverval-Grignon during the most sunny months:
Months with the longest average daylight duration in Thiverval-Grignon:
The largest precipitation sum in Thiverval-Grignon is at