Average annual temperature is 11.4 °C
Absolute maximum temperature: 30.3 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 115 days
Number of rainy days: 249 days
Number of snow days: 1 day
Look at detailed online map of Boulogne-sur-Helpe
* Weather data for Boulogne-sur-Helpe 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) | 13.6 | 13.0 | 15.6 | 17.5 | 22.9 | 28.5 | 29.2 | 28.0 | 30.3 | 24.1 | 14.6 | 11.4 |
| Average daytime temperature (°C) | 6.3 | 8.1 | 10.0 | 11.8 | 17.2 | 24.1 | 22.2 | 21.7 | 22.9 | 16.7 | 9.5 | 7.8 |
| Average temperature (°C) | 4.3 | 4.8 | 6.8 | 7.9 | 12.8 | 19.5 | 18.2 | 17.8 | 18.4 | 13.1 | 7.3 | 5.9 |
| Average night temperature (°C) | 1.9 | 2.1 | 3.3 | 3.7 | 8.1 | 13.9 | 13.9 | 13.6 | 14.1 | 9.7 | 5.1 | 3.9 |
| Absolute minimum temperature (°C) | -4.8 | -4.2 | -3.5 | -2.7 | 3.7 | 8.5 | 9.8 | 9.7 | 8.2 | 2.8 | -1.9 | -5.4 |
| 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 | 15.4 | 16.3 | 15.9 | 14.4 | 12.6 | 10.7 | 9.1 | 8.2 |
| 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) | 2.6 | 5.2 | 5.1 | 7.1 | 10.1 | 12.8 | 10.8 | 10.0 | 9.0 | 6.1 | 2.9 | 1.6 |
| Precipitation (mm) | 104 | 12 | 134 | 102 | 59 | 26 | 141 | 90 | 52 | 133 | 143 | 88 |
| Sunny days | 7 | 13 | 6 | 9 | 14 | 19 | 6 | 5 | 18 | 11 | 1 | 6 |
| Rainy days | 24 | 15 | 25 | 21 | 17 | 11 | 25 | 26 | 12 | 20 | 29 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Boulogne-sur-Helpe during the most sunny months:
Months with the longest average daylight duration in Boulogne-sur-Helpe:
The largest precipitation sum in Boulogne-sur-Helpe is at