Climate Overview
Brussels has a temperate oceanic climate with mild winters and cool summers. Temperatures typically range from 2–7°C (36–45°F) in winter and 15–22°C (59–72°F) in summer. The city experiences fairly consistent rainfall throughout the year, so rain gear is always a smart packing choice. Humidity tends to be moderate, though autumn and winter months can feel quite damp.
Best Time to Visit
Late April through May and September through October are ideal for visiting Brussels. Spring brings blooming flowers, pleasant temperatures around 15–18°C (59–64°F), and fewer crowds than summer. Autumn offers similar comfort with vibrant foliage and excellent conditions for exploring neighborhoods like the Sablon and Marais districts. Summer (June–August) is warmest but busiest, with peak hotel rates around €100–150 per night. Winter is quieter and atmospheric, especially during December's Christmas markets, though expect grey skies and temperatures near freezing.
Seasonal Breakdown
Spring (March–May) features mild weather ideal for walking tours of the Grand Place and nearby attractions. Summer draws the most visitors; book accommodations well in advance. Autumn provides comfortable sightseeing weather without summer heat. Winter sees fewer tourists and cheaper rates (€60–100 per night), making it budget-friendly, though you'll need warm clothing and should expect occasional snow. Pack layers year-round, as Brussels weather can be unpredictable. Museums like the Musées Royaux offer a perfect rainy-day refuge regardless of season.