Average annual temperature is 12.8 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -3.3 °C
Number of sunny days: 122 days
Number of rainy days: 243 days
Look at detailed online map of Ille-et-Vilaine
* Weather data for Ille-et-Vilaine 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) | 13.4 | 14.8 | 18.6 | 19.4 | 25.6 | 30.2 | 29.5 | 30.4 | 32.0 | 27.9 | 16.1 | 14.5 |
| Average daytime temperature (°C) | 8.7 | 10.1 | 12.3 | 14.7 | 19.2 | 25.2 | 22.6 | 22.8 | 24.2 | 18.5 | 12.1 | 10.4 |
| Average temperature (°C) | 6.2 | 5.9 | 8.7 | 10.3 | 14.3 | 19.7 | 18.1 | 18.5 | 19.3 | 14.3 | 9.5 | 8.0 |
| Average night temperature (°C) | 3.7 | 2.4 | 5.7 | 6.2 | 9.5 | 14.3 | 13.9 | 14.6 | 15.1 | 10.5 | 6.5 | 5.5 |
| Absolute minimum temperature (°C) | -3.0 | -2.7 | -2.3 | 1.3 | 5.6 | 9.6 | 9.9 | 11.4 | 7.9 | 6.6 | -0.4 | -3.3 |
| 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) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.4 |
| 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) | 4.1 | 5.8 | 6.3 | 8.7 | 11.2 | 12.4 | 10.3 | 9.7 | 9.2 | 6.5 | 4.9 | 3.7 |
| Precipitation (mm) | 73 | 19 | 122 | 65 | 54 | 43 | 108 | 84 | 56 | 95 | 120 | 83 |
| Sunny days | 8 | 16 | 8 | 10 | 16 | 14 | 3 | 10 | 14 | 12 | 4 | 7 |
| Rainy days | 23 | 12 | 23 | 20 | 15 | 16 | 28 | 21 | 16 | 19 | 26 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ille-et-Vilaine during the most sunny months:
Months with the longest average daylight duration in Ille-et-Vilaine:
The largest precipitation sum in Ille-et-Vilaine is at