- Rain mm/yr
- 814
Updated July 2026 · Sources cited: weather-atlas.com, climatestotravel.com
Good to know
Good to Know
- Pack an umbrella year-round; rainfall is fairly consistent across all months, with an average of 200 rainy days annually.
- Winter brings colder nights (dropping to around -6°C (21°F)) but daytime highs rarely fall below 6°C (43°F).
- Summer temperatures peak at 23°C (73°F) but evenings can still be cool; dress in layers.
- April offers the driest conditions with lowest rainfall (51mm), making it ideal for walking and cycling exploration.
- Late afternoon showers and brief downpours are common even during sunny spells—always carry waterproof gear.
- Humidity remains moderate to high throughout the year (around 70-84%), contributing to the damp feel.
- December and January have the shortest daylight hours (2-3 hours of daily sunshine) and highest cloud cover.
Spring Best
- Rainfall Mm
- 51-67mm
- Temp Range Celsius
- 10-18°C (50–64°F)
- Temp Range Fahrenheit
- 10-18°C (50–64°F)
- Notes
- Lower rainfall, increasingly sunny days, mild temperatures with cool evenings
Months
- April
- May
Summer Best
- Rainfall Mm
- 72-79mm
- Temp Range Celsius
- 20-23°C (68–73°F)
- Temp Range Fahrenheit
- 20-23°C (68–73°F)
- Notes
- Warmest temperatures with occasional pleasant sunny periods; mix of sun and showers
Months
- June
- July
- August
- September
Brussels has a temperate Marine West Coast climate with four distinct seasons. Temperatures remain relatively mild year-round, but rainfall is consistent throughout the year.
Snowfall
- Occurs
- Yes
- Frequency
- Occurs sporadically but does not accumulate heavily
- Month Most Snowfall
- February
- Snowfall Days February
- 5.9
- Average Snowfall Days Per Year
- 23.7
Potential Months
- January
- February
- March
- April
- November
- December
Explanation
April through May and June through September offer optimal conditions
Worst Months
- Explanation
- January, February, and December have least optimal conditions
- Rainfall Mm
- 75-81mm
- Temp Range Celsius
- 3-6°C (37–43°F)
- Temp Range Fahrenheit
- 3-6°C (37–43°F)
- Notes
- Cold temperatures, most rainfall concentration, minimal sunshine hours, potential frost and occasional snow
Months
- January
- February
- December
Rainfall Patterns
- Driest Month
- April
- Annual Total Mm
- 814
- Driest Amount Mm
- 51
- Wettest Amount Mm
- 79
- Note Rainfall
- Rainfall is consistent throughout the year with minimal variation (25mm range between driest and wettest).
Wettest Months
- August
- December
Temperature Range
- Coldest Avg
- 3.7
- Warmest Avg
- 18.5
- Coldest Unit
- °C
- Warmest Unit
- °C
- Coldest Month
- January
- Warmest Month
- July
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Brussels
Data last updated July 2026 · Verify anything important.