Average annual temperature is 14.3 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: -4.7 °C
Number of sunny days: 174 days
Number of rainy days: 189 days
Number of snow days: 2 days
Look at detailed online map of L'Union
* Weather data for L'Union 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) | 15.7 | 17.0 | 21.9 | 24.5 | 27.6 | 30.5 | 36.5 | 40.8 | 33.3 | 32.4 | 21.7 | 16.3 |
| Average daytime temperature (°C) | 8.1 | 11.2 | 15.1 | 17.4 | 20.6 | 26.2 | 28.3 | 29.7 | 28.1 | 23.3 | 13.6 | 10.4 |
| Average temperature (°C) | 5.0 | 5.1 | 10.0 | 12.1 | 15.6 | 20.9 | 22.7 | 23.5 | 21.4 | 17.3 | 9.7 | 7.0 |
| Average night temperature (°C) | 2.4 | 0.2 | 5.7 | 7.2 | 11.0 | 15.9 | 17.4 | 17.7 | 15.5 | 12.4 | 5.9 | 4.0 |
| Absolute minimum temperature (°C) | -3.9 | -3.9 | -4.7 | 1.5 | 7.2 | 12.5 | 14.1 | 11.5 | 9.0 | 6.3 | -3.4 | -3.2 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.9 | 7.3 | 7.7 | 8.1 | 10.1 | 11.2 | 12.1 | 11.3 | 10.2 | 8.1 | 5.4 | 3.7 |
| Precipitation (mm) | 90 | 26 | 65 | 84 | 87 | 112 | 20 | 40 | 52 | 72 | 114 | 92 |
| Sunny days | 11 | 21 | 16 | 13 | 12 | 9 | 13 | 18 | 19 | 19 | 9 | 14 |
| Rainy days | 19 | 6 | 15 | 17 | 19 | 21 | 18 | 13 | 11 | 12 | 21 | 17 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit L'Union during the most sunny months:
Months with the longest average daylight duration in L'Union:
The largest precipitation sum in L'Union is at