Average annual temperature is 9.0 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -21.8 °C
Number of sunny days: 180 days
Number of rainy days: 153 days
Number of snow days: 32 days
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* Weather data for Brussels United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 5.1 | 7.6 | 8.3 | 25.1 | 29.3 | 30.3 | 30.9 | 30.2 | 32.5 | 29.2 | 16.7 | 10.2 |
| Average daytime temperature (°C) | -0.5 | 0.5 | 2.9 | 12.4 | 19.2 | 24.5 | 26.3 | 24.9 | 22.3 | 14.9 | 6.8 | 4.0 |
| Average temperature (°C) | -3.3 | -3.6 | -1.1 | 7.2 | 13.1 | 19.0 | 21.4 | 20.4 | 18.1 | 11.4 | 3.5 | 1.5 |
| Average night temperature (°C) | -5.7 | -7.0 | -4.1 | 3.1 | 8.2 | 14.5 | 17.5 | 17.2 | 15.1 | 8.8 | 0.8 | -0.5 |
| Absolute minimum temperature (°C) | -21.8 | -21.4 | -11.0 | -4.8 | 0.6 | 10.1 | 13.3 | 11.6 | 9.0 | -1.5 | -8.9 | -6.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.7 | 7.0 | 7.2 | 9.0 | 10.5 | 12.2 | 12.9 | 11.6 | 9.3 | 6.6 | 6.3 | 4.7 |
| Precipitation (mm) | 51 | 72 | 68 | 98 | 65 | 77 | 53 | 124 | 49 | 103 | 25 | 37 |
| Sunny days | 12 | 12 | 13 | 12 | 20 | 22 | 8 | 16 | 16 | 11 | 20 | 18 |
| Rainy days | 10 | 7 | 9 | 17 | 11 | 8 | 23 | 15 | 14 | 20 | 8 | 11 |
| Snow days | 9 | 9 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Brussels during the most sunny months:
Months with the longest average daylight duration in Brussels:
The largest precipitation sum in Brussels is at