When to go
The Best Time to Visit Brussels
Month-by-month climate data for Brussels, Belgium — daily highs and lows, rain days, and an honest verdict for every month of the year.
Timing is the first real decision when planning Brussels— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
April–June, September–October. Mild weather and longer days without the summer day-tripper crowds.
Warmest in Brussels: Aug (24°C / 75°F) · Coolest: Jan (7°C / 45°F) · Wettest: Dec (~15 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Brussels climate, month by month
January
7° / 2°C
~12 rain days
Fair
February
9° / 3°C
~13 rain days
Fair
March
11° / 4°C
~13 rain days
Fair
April
14° / 5°C
~11 rain days
Good
May
18° / 9°C
~12 rain days
Excellent
June
22° / 13°C
~10 rain days
Excellent
July
22° / 14°C
~13 rain days
Excellent
August
24° / 15°C
~13 rain days
Excellent
September
21° / 12°C
~12 rain days
Excellent
October
16° / 10°C
~14 rain days
Good
November
10° / 5°C
~13 rain days
Fair
December
7° / 3°C
~15 rain days
Tough
Plan around it
Dates locked in? Start from the Brussels travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.