Average annual temperature is 11.8 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: -5.1 °C
Number of sunny days: 104 days
Number of rainy days: 261 days
Look at detailed online map of Tréogan
* Weather data for Tréogan 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) | 12.2 | 14.1 | 15.3 | 18.3 | 21.5 | 28.2 | 25.8 | 26.8 | 29.9 | 26.7 | 14.5 | 14.0 |
| Average daytime temperature (°C) | 8.1 | 9.7 | 10.9 | 13.6 | 17.1 | 22.7 | 20.1 | 20.8 | 21.9 | 17.1 | 11.4 | 10.3 |
| Average temperature (°C) | 5.9 | 6.0 | 8.1 | 9.4 | 12.8 | 17.6 | 16.5 | 16.7 | 17.8 | 13.6 | 9.1 | 8.3 |
| Average night temperature (°C) | 3.6 | 2.7 | 5.5 | 5.5 | 8.7 | 12.6 | 12.8 | 13.1 | 14.0 | 10.4 | 6.9 | 6.0 |
| Absolute minimum temperature (°C) | -5.1 | -2.3 | -1.9 | 1.0 | 5.6 | 8.8 | 9.2 | 9.0 | 6.3 | 6.3 | 1.8 | -2.0 |
| 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) | 3.6 | 6.4 | 5.2 | 8.4 | 11.6 | 12.3 | 9.5 | 9.3 | 9.0 | 6.0 | 4.5 | 2.9 |
| Precipitation (mm) | 121 | 15 | 168 | 95 | 41 | 27 | 106 | 81 | 75 | 104 | 156 | 120 |
| Sunny days | 6 | 18 | 5 | 9 | 16 | 12 | 3 | 6 | 7 | 10 | 5 | 7 |
| Rainy days | 25 | 10 | 26 | 21 | 15 | 18 | 28 | 25 | 23 | 21 | 25 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Tréogan during the most sunny months:
Months with the longest average daylight duration in Tréogan:
The largest precipitation sum in Tréogan is at