Weather in Bryssel in september
Climate normals based on 10 years of historical data for Bryssel, Belgien.
Average high
21°C
Average low
12°C
Rainfall
69 mm
12 rainy days
Sunshine
3.7h/day
Luftfuktighet
72%
How Hot Is Bryssel in september?
Bryssel starts to ease back from summer's peak — afternoon highs of 21°C and overnight lows of 12°C in September.
Sunshine Hours in september
Mixed weather is typical in Bryssel this September: 3.7h of sun a day on average.
Does It Rain In Bryssel In september?
Rain falls often in Bryssel this month — 69mm spread across 12 days, with rain on roughly every other day.
Is Bryssel Humid In september?
Bryssel feels muggy this month with humidity around 72%, especially in calm air.
Wind In Bryssel In september
Breezes around 18 kph in Bryssel this September — comfortable for outdoor activity.
Cloud Cover In Bryssel In september
Cloudy skies dominate Bryssel in September — averaging 60% cloud cover.
Cities With Similar Weather In september
Weather in Bryssel, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 6°C / 2°C | 76mm | Details → |
| Vädret i februari | 8°C / 3°C | 68mm | Details → |
| Vädret i mars | 11°C / 4°C | 76mm | Details → |
| Vädret i april | 14°C / 5°C | 49mm | Details → |
| Vädret i maj | 18°C / 9°C | 66mm | Details → |
| Vädret i juni | 22°C / 13°C | 78mm | Details → |
| Vädret i juli | 23°C / 14°C | 73mm | Details → |
| Vädret i augusti | 24°C / 15°C | 65mm | Details → |
| Vädret i september | 21°C / 12°C | 69mm | |
| Vädret i oktober | 16°C / 9°C | 74mm | Details → |
| Vädret i november | 10°C / 6°C | 72mm | Details → |
| Vädret i december | 8°C / 4°C | 76mm | Details → |