Average annual temperature is 15.8 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -8.9 °C
Number of sunny days: 241 days
Number of rainy days: 122 days
Number of snow days: 2 days
Look at detailed online map of Erwan
* Weather data for Erwan China is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.5 | 15.0 | 26.5 | 30.1 | 32.0 | 36.8 | 34.9 | 34.6 | 30.9 | 26.9 | 27.6 | 20.4 |
| Average daytime temperature (°C) | 7.2 | 8.5 | 17.8 | 20.6 | 25.7 | 30.6 | 31.2 | 30.8 | 26.7 | 23.1 | 14.3 | 6.9 |
| Average temperature (°C) | 1.6 | 4.0 | 11.9 | 15.7 | 21.1 | 25.9 | 27.8 | 27.1 | 23.3 | 18.1 | 9.6 | 2.4 |
| Average night temperature (°C) | -3.0 | -0.2 | 6.6 | 11.3 | 16.9 | 21.7 | 25.0 | 23.8 | 20.3 | 14.1 | 5.1 | -1.6 |
| Absolute minimum temperature (°C) | -8.9 | -3.6 | 0.0 | 6.1 | 11.3 | 16.2 | 22.6 | 18.6 | 15.7 | 7.6 | -3.7 | -8.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.7 | 6.3 | 8.9 | 7.6 | 8.2 | 8.6 | 8.0 | 10.5 | 7.2 | 8.5 | 7.2 | 6.2 |
| Precipitation (mm) | 26 | 30 | 25 | 82 | 146 | 53 | 298 | 125 | 164 | 6 | 43 | 38 |
| Sunny days | 26 | 20 | 26 | 20 | 19 | 18 | 6 | 19 | 16 | 24 | 23 | 24 |
| Rainy days | 5 | 8 | 5 | 10 | 12 | 12 | 25 | 12 | 14 | 7 | 7 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Erwan during the most sunny months:
The largest precipitation sum in Erwan is at