Brussels, Belgium Climate & Monthly Averages
The climate of Brussels
Located in Belgium, Brussels experiences a oceanic climate with mild temperatures year-round with regular rainfall. Afternoon temperatures peak near 74°F (23°C) in August and dip to about 43°F (6°C) in January, with around 31.6 inches (802 mm) of precipitation falling across the year.
Climate quick facts
- Hottest month: August - highs near 74°F (23°C)
- Coldest month: January - highs near 43°F (6°C)
- Record high: 101°F (38°C) · Record low: 17°F (-8°C) (2015–2024)
- Wettest month: December (14 rainy days) · Sunniest: July (11.4 h sun/day)
- Climate type: oceanic - mild temperatures year-round with regular rainfall
- Snow: about 4 days a year
Temperatures through the year
The warmest stretch of the year centers on August. Highs average 74°F (23°C) and overnight lows stay near 59°F (15°C). The coolest month is January, with typical highs of 43°F (6°C) and lows around 35°F (2°C). Based on 2015–2024 weather data, temperatures have reached as high as 101°F (38°C) and dropped as low as 17°F (-8°C).
Rain, sun and snow
December is usually the wettest month. It brings about 3.0 inches (75 mm) of rain over 14 days, while April is the driest. July brings the most sunshine, averaging 11.4 hours of sun a day. Snow falls on about 4 days in a typical year, mostly from December through April.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 43° | 35° | 14 | 3.0 in | 3.6 h/day | 87% |
| February | 47° | 36° | 12 | 2.6 in | 5.4 h/day | 82% |
| March | 52° | 38° | 14 | 2.8 in | 7.0 h/day | 78% |
| April | 57° | 41° | 11 | 1.9 in | 9.7 h/day | 72% |
| May | 65° | 48° | 12 | 2.5 in | 10.9 h/day | 72% |
| June | 72° | 55° | 10 | 2.8 in | 11.3 h/day | 71% |
| July | 73° | 58° | 11 | 2.7 in | 11.4 h/day | 71% |
| August | 74° | 59° | 12 | 2.3 in | 10.7 h/day | 72% |
| September | 68° | 54° | 11 | 2.5 in | 9.0 h/day | 76% |
| October | 60° | 49° | 13 | 2.8 in | 6.0 h/day | 82% |
| November | 51° | 41° | 14 | 2.7 in | 4.5 h/day | 86% |
| December | 46° | 38° | 14 | 3.0 in | 3.2 h/day | 88% |
Brussels month by month
Brussels weather in January
January brings highs around 43°F (6°C), lows near 35°F (2°C), about 14 wet days and roughly 2 snowy days - typically the coldest month of the year in Brussels.
Brussels weather in February
February brings highs around 47°F (8°C), lows near 36°F (2°C), about 12 wet days.
Brussels weather in March
March brings highs around 52°F (11°C), lows near 38°F (3°C), about 14 wet days.
Brussels weather in April
April brings highs around 57°F (14°C), lows near 41°F (5°C), about 11 wet days - typically the driest month of the year in Brussels.
Brussels weather in May
May brings highs around 65°F (18°C), lows near 48°F (9°C), about 12 wet days.
Brussels weather in June
June brings highs around 72°F (22°C), lows near 55°F (13°C), about 10 wet days.
Brussels weather in July
July brings highs around 73°F (23°C), lows near 58°F (14°C), about 11 wet days - typically the sunniest month of the year in Brussels.
Brussels weather in August
August brings highs around 74°F (23°C), lows near 59°F (15°C), about 12 wet days - typically the hottest month of the year in Brussels.
Brussels weather in September
September brings highs around 68°F (20°C), lows near 54°F (12°C), about 11 wet days.
Brussels weather in October
October brings highs around 60°F (16°C), lows near 49°F (9°C), about 13 wet days.
Brussels weather in November
November brings highs around 51°F (10°C), lows near 41°F (5°C), about 14 wet days.
Brussels weather in December
December brings highs around 46°F (8°C), lows near 38°F (4°C), about 14 wet days - typically the wettest month of the year in Brussels.
Seasons in Brussels
Spring (March through May)
Spring in Brussels is crisp but comfortable, with daytime highs averaging 58°F (14°C) and nights around 42°F (6°C); expect showers on roughly 36 days across the season.
Summer (June through August)
Summer in Brussels brings comfortable warmth, with daytime highs averaging 73°F (23°C) and nights around 57°F (14°C); expect showers on roughly 33 days across the season.
Fall (September through November)
Fall in Brussels is crisp but comfortable, with daytime highs averaging 60°F (15°C) and nights around 48°F (9°C); expect showers on roughly 38 days across the season.
Winter (December through February)
Winter in Brussels is chilly, with daytime highs averaging 46°F (8°C) and nights around 36°F (2°C); expect showers on roughly 40 days across the season, plus around 3 snowy days.
Climate questions, answered
What is the average temperature in Brussels?
Is Brussels hot in summer?
Is Brussels cold in winter?
How many rainy days does Brussels get in a year?
Best time to visit Brussels
The best time to visit Brussels is generally May to September, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 70°F (21°C).
Pack for Brussels with a warm jacket and layers for the cooler season; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - August nights average 59°F (15°C).
Brussels temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.