Average annual temperature is 12.2 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -5.1 °C
Number of sunny days: 128 days
Number of rainy days: 237 days
Look at detailed online map of Dechy
* Weather data for Dechy 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) | 15.3 | 12.2 | 17.2 | 16.6 | 23.8 | 30.4 | 30.2 | 28.3 | 32.2 | 24.9 | 16.0 | 13.4 |
| Average daytime temperature (°C) | 7.9 | 9.2 | 11.1 | 12.8 | 18.1 | 25.2 | 22.7 | 22.6 | 23.9 | 17.7 | 10.8 | 9.2 |
| Average temperature (°C) | 5.5 | 5.7 | 7.8 | 8.7 | 13.3 | 19.9 | 18.7 | 18.3 | 18.9 | 13.9 | 8.3 | 7.0 |
| Average night temperature (°C) | 2.8 | 2.5 | 4.2 | 4.3 | 8.3 | 13.9 | 14.4 | 14.0 | 14.2 | 10.4 | 5.9 | 5.0 |
| Absolute minimum temperature (°C) | -3.6 | -4.4 | -2.7 | -1.2 | 3.6 | 10.0 | 11.5 | 10.6 | 9.0 | 2.2 | 0.5 | -5.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.6 | 10.1 | 11.9 | 13.8 | 15.5 | 16.3 | 15.9 | 14.5 | 12.6 | 10.7 | 9.0 | 8.1 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.3 | 5.0 | 5.1 | 7.9 | 10.3 | 13.1 | 11.2 | 10.9 | 9.2 | 6.5 | 3.8 | 2.4 |
| Precipitation (mm) | 74 | 7 | 124 | 83 | 62 | 37 | 136 | 81 | 72 | 110 | 114 | 68 |
| Sunny days | 10 | 17 | 5 | 9 | 16 | 20 | 4 | 8 | 17 | 11 | 4 | 7 |
| Rainy days | 21 | 11 | 26 | 21 | 15 | 10 | 27 | 23 | 13 | 20 | 26 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Dechy during the most sunny months:
Months with the longest average daylight duration in Dechy:
The largest precipitation sum in Dechy is at