Average annual temperature is 12.0 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: -13.4 °C
Number of sunny days: 170 days
Number of rainy days: 192 days
Number of snow days: 3 days
Look at detailed online map of Saint-Julien-en-Genevois
* Weather data for Saint-Julien-en-Genevois 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) | 13.8 | 14.6 | 19.0 | 21.5 | 23.2 | 29.7 | 35.9 | 38.2 | 30.8 | 26.7 | 14.5 | 11.7 |
| Average daytime temperature (°C) | 5.6 | 9.2 | 11.9 | 13.4 | 18.6 | 25.5 | 27.5 | 28.1 | 24.8 | 18.7 | 9.2 | 7.6 |
| Average temperature (°C) | 2.4 | 3.7 | 7.1 | 8.7 | 14.1 | 20.1 | 21.4 | 22.1 | 19.4 | 14.0 | 6.3 | 3.9 |
| Average night temperature (°C) | -0.8 | -1.0 | 2.8 | 4.2 | 9.5 | 14.4 | 15.0 | 16.4 | 14.1 | 9.7 | 3.0 | 0.9 |
| Absolute minimum temperature (°C) | -13.4 | -4.5 | -3.6 | -1.7 | 4.9 | 10.2 | 10.5 | 7.7 | 6.8 | 4.4 | -4.6 | -4.0 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.5 | 8.3 | 7.3 | 8.5 | 11.1 | 12.9 | 12.7 | 10.8 | 10.3 | 7.7 | 3.6 | 3.8 |
| Precipitation (mm) | 101 | 12 | 153 | 133 | 106 | 114 | 119 | 61 | 110 | 213 | 214 | 216 |
| Sunny days | 17 | 19 | 13 | 10 | 11 | 15 | 11 | 16 | 22 | 17 | 7 | 12 |
| Rainy days | 13 | 8 | 17 | 20 | 20 | 15 | 20 | 15 | 8 | 14 | 23 | 19 |
| Snow days | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Saint-Julien-en-Genevois during the most sunny months:
Months with the longest average daylight duration in Saint-Julien-en-Genevois:
The largest precipitation sum in Saint-Julien-en-Genevois is at