Brussels: Weather Guide & Climate
Complete month-by-month weather guide: Brussels. Best time to visit: May, June, July, August, September. Plan your trip with detailed climate data.
Climate Overview
Brussels has a cool climate with average yearly highs of 16°C, lows of 8°C, and approximately 11 rainy days per month.
The best time to visit Brussels is during May, June, July, August, September, when weather is pleasant and ideal for outdoor activities
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Air Quality
Best Time
May, Jun, Jul, Aug, Sep
Hottest
Coldest
Driest Month
Forecast for your trip dates
Up to 16 days ahead| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 8°C | 3°C | 9 | Good |
| February | 10°C | 4°C | 19 | Wet |
| March | 11°C | 3°C | 11 | Good |
| April | 18°C | 6°C | 4 | Good |
| May | 19°C | 8°C | 4 | Excellent (best) |
| June | 22°C | 13°C | 11 | Excellent (best) |
| July | 22°C | 13°C | 12 | Excellent (best) |
| August | 26°C | 16°C | 12 | Excellent (best) |
| September | 21°C | 12°C | 9 | Excellent (best) |
| October | 14°C | 9°C | 19 | Wet |
| November | 12°C | 6°C | 9 | Good |
| December | 8°C | 3°C | 13 | Wet |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
Weather by Season
Winter
Dec–Feb
High: 9°C
Low: 3°C
Rainy days: 14 days/month
Spring
Mar–May
High: 16°C
Low: 6°C
Rainy days: 6 days/month
Summer
Jun–Aug
High: 23°C
Low: 14°C
Rainy days: 12 days/month
Autumn
Sep–Nov
High: 16°C
Low: 9°C
Rainy days: 12 days/month
Month-by-Month Weather Table
January
February
March
April
May
BestJune
BestJuly
BestAugust
BestSeptember
BestOctober
November
December
| Month | High | Low | Rainy days | Condition | View Details |
|---|---|---|---|---|---|
| January | 8°C | 3°C | 9 | Good | View Details → |
| February | 10°C | 4°C | 19 | Wet | View Details → |
| March | 11°C | 3°C | 11 | Good | View Details → |
| April | 18°C | 6°C | 4 | Good | View Details → |
| May (best) | 19°C | 8°C | 4 | Excellent | View Details → |
| June (best) | 22°C | 13°C | 11 | Excellent | View Details → |
| July (best) | 22°C | 13°C | 12 | Excellent | View Details → |
| August (best) | 26°C | 16°C | 12 | Excellent | View Details → |
| September (best) | 21°C | 12°C | 9 | Excellent | View Details → |
| October | 14°C | 9°C | 19 | Wet | View Details → |
| November | 12°C | 6°C | 9 | Good | View Details → |
| December | 8°C | 3°C | 13 | Wet | View Details → |
Brussels
Grand Place, Manneken Pis, Art Nouveau architecture, Belgian waffles, and European capital flair.
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Common Questions
What type of climate does Brussels have?
Brussels has a Cool climate with average yearly temperatures of 16°C (highs) and 8°C (lows).
When is the best time to visit Brussels?
The best time to visit Brussels is during May, June, July, August, September, when temperatures average around 19°C and conditions are ideal for sightseeing.
What are the hottest and coldest months in Brussels?
The hottest month in Brussels is August with average highs of 26°C, while the coldest is January with average lows of 3°C.
When is the rainy season in Brussels?
Brussels sees the most rain in February (19 rainy days), while April is the driest month (4 rainy days).
More Brussels Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for Brussels: top things to do, itineraries, and typical costs.