Average annual temperature is 13.2 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 151 days
Number of rainy days: 214 days
Look at detailed online map of Mer
* Weather data for Mer 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) | 16.3 | 16.4 | 20.2 | 21.1 | 26.1 | 31.2 | 31.7 | 31.7 | 32.6 | 28.2 | 17.0 | 14.6 |
| Average daytime temperature (°C) | 8.0 | 9.9 | 12.7 | 14.6 | 20.1 | 26.5 | 25.1 | 24.4 | 25.5 | 19.3 | 12.0 | 9.8 |
| Average temperature (°C) | 6.0 | 5.4 | 8.8 | 10.3 | 15.1 | 21.2 | 20.3 | 20.0 | 19.9 | 14.6 | 9.3 | 7.5 |
| Average night temperature (°C) | 3.5 | 1.7 | 4.9 | 6.1 | 10.3 | 15.4 | 15.4 | 15.8 | 14.8 | 10.4 | 6.3 | 5.2 |
| Absolute minimum temperature (°C) | -3.1 | -4.6 | -1.9 | -0.7 | 6.3 | 11.0 | 11.4 | 10.3 | 6.5 | 5.1 | -0.4 | -3.1 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| 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) | 2.8 | 6.1 | 6.7 | 8.0 | 11.7 | 12.5 | 11.5 | 9.4 | 10.0 | 7.0 | 4.7 | 2.7 |
| Precipitation (mm) | 72 | 14 | 84 | 50 | 54 | 103 | 64 | 63 | 59 | 118 | 91 | 58 |
| Sunny days | 7 | 20 | 10 | 12 | 17 | 19 | 13 | 7 | 16 | 15 | 5 | 10 |
| Rainy days | 24 | 8 | 21 | 18 | 14 | 11 | 18 | 24 | 14 | 16 | 25 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Mer during the most sunny months:
Months with the longest average daylight duration in Mer:
The largest precipitation sum in Mer is at