Open Travel Guide
Weather in Brussels-Capital Region

Brussels-Capital Region Weather & Climate Guide 2026

Month-by-month weather, best times to visit, and what to pack for Brussels-Capital Region.

Weather through the year in Belgium

5° JAN 5° FEB 8° MAR 11° APR 15° MAY 18° JUN 20° JUL 20° AUG 17° SEP 13° OCT 8° NOV 5° DEC

Best time Shoulder Worth avoiding

Average daytime temperature in °C. Figures are for Belgium.

The Brussels-Capital Region is Belgium's bilingual capital region and the de facto capital of the European Union, with Grand Place, Art Nouveau houses, comics and the Atomium.

Brussels has a temperate maritime climate: mild summers (average highs 22-24 C), cool winters (1-7 C) and rain spread through the year.

Best time to visit

Recommendation

Best: May-June and September

Best Reason: Mild weather, long days and terrace season without peak crowds.

Shoulder Season: April and October

Peak Season: July-August and the December markets

Avoid: January-February

Avoid Reason: Cold, grey and wet, with some attractions on reduced hours.

Notes: Brussels is rainy year-round; always carry a light waterproof.

Month-by-month weather

Typical conditions throughout the year.

January

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February

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March

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April

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May

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June

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July

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August

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September

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October

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November

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December

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The seasons

What to expect in each part of the year.

Season

Spring

Season

Summer

Season

Fall

Season

Winter

Crowds & peak times

When to expect tourists and when to avoid them.

High Season
July-August and December see the most visitors.
Shoulder Season
April-June and September-October are comfortable.
Low Season
January-March is quiet but cold.

Major events & festivals

Time your visit around what matters.

Event

Flower Carpet

A carpet of begonias on Grand Place (verify dates).

Event

Winter Wonders

Christmas market and light shows.

Event

Belgian National Day

Parade and fireworks.

Event

Ommegang

Historical parade at Grand Place (verify dates).

Event

Brussels Jazz Weekend

Free concerts (verify).

Event

Belgian Beer Weekend

Beer festival at Grand Place.