Weather in Brussels
Live weather and 7-day forecast for Brussels, Belgium, followed by what to expect in each month of the year.
Sunrise 08:17 Sunset 18:38 Daylight 10h 21m Sun times →
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7-day forecast
Forecast data from Open-Meteo
Climate in Brussels: month by month
Averaged over 2023–2025, the warmest month in Brussels is August, with highs around 23 °C (74 °F) and lows around 15 °C (58 °F); the coolest is January, with highs around 6 °C (43 °F) and lows around 1 °C (34 °F).
Brussels gets about 887 mm (35 in) of precipitation a year. The wettest month is January (98 mm over about 14 days) and the driest is August (46 mm).
| Month | Avg high | Avg low | Precipitation (mm) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | 6° | 1° | 98 | 14 | 8h 26m |
| February | 9° | 3° | 55 | 11 | 10h 2m |
| March | 12° | 4° | 80 | 14 | 11h 49m |
| April | 15° | 6° | 64 | 14 | 13h 48m |
| May | 19° | 10° | 73 | 12 | 15h 30m |
| June | 23° | 13° | 61 | 8 | 16h 29m |
| July | 23° | 14° | 95 | 17 | 16h 5m |
| August | 23° | 15° | 46 | 11 | 14h 35m |
| September | 21° | 13° | 75 | 10 | 12h 41m |
| October | 16° | 10° | 95 | 13 | 10h 47m |
| November | 10° | 5° | 84 | 16 | 8h 59m |
| December | 8° | 4° | 61 | 12 | 7h 58m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Brussels's coordinates (model elevation 26 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Brussels
What is the hottest month in Brussels?
August, with average highs of 23 °C (74 °F) and lows of 15 °C (58 °F) over 2023–2025. The coolest month is January, averaging 6 °C (43 °F) by day and 1 °C (34 °F) at night.
What is the rainiest month in Brussels?
January, with about 98 mm of precipitation on roughly 14 days. The driest month is August (46 mm), and the yearly total is around 887 mm.
When is the weather mildest in Brussels?
Going by the averages, May–September are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. January is the month most likely to bring rain.
More about Brussels
More for Brussels
More for Brussels: local time, sunrise and sunset, moon phases, and the exact time zone.
About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Brussels local time (Europe/Brussels).