Will it rain in
Brussels today?
Live hourly rain forecast and run verdict for Brussels, Brussels, Belgium.
Running in Brussels means dealing with Belgium's reliable grey skies, drizzle, and damp chill. Whether it's a misty morning through the Bois de la Cambre, a sudden shower in Parc du Cinquantenaire, or gusty winds across the city, knowing whether to head out before you lace up matters. RainOrRun checks live conditions in Brussels right now and gives you an instant verdict — plus the best hourly window if the weather's on the fence. We'll also recommend the right gear for whatever Brussels's persistently damp weather is throwing at you today.
What to wear
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How often does it rain in Brussels?
Brussels records around 801mm of rain a year, spread across about 148 days — roughly 41% of all days, or 12 days in an average month. In practice that makes rain a regular feature of running in Brussels rather than an exception — close to one day in two. A decent waterproof and a peaked cap earn their place in the kit bag year-round.
The wettest month is January, averaging 75mm across about 14 rainy days. The driest is April, with 47mm over roughly 11 days. Average lows in January drop to 1.6°C, cold enough that gloves, a headband and a thermal base layer make a real difference on early runs. Summer highs peak around 23.4°C in August, comfortable for most daytime running.
Those are ten-year averages, not a forecast. What actually matters on the day is the next twelve hours — which is what the live verdict and hourly strip at the top of this page are for.
| Month | Rainfall | Rainy days | Avg high | Avg low |
|---|---|---|---|---|
| January | 75mm | 14 | 6.3°C | 1.6°C |
| February | 67mm | 12 | 8.4°C | 2.3°C |
| March | 71mm | 14 | 10.9°C | 3.4°C |
| April | 47mm | 11 | 14.1°C | 5.1°C |
| May | 63mm | 12 | 18.2°C | 9°C |
| June | 71mm | 10 | 22°C | 13°C |
| July | 68mm | 11 | 23°C | 14.4°C |
| August | 59mm | 12 | 23.4°C | 14.8°C |
| September | 64mm | 11 | 20.1°C | 12°C |
| October | 72mm | 13 | 15.6°C | 9.4°C |
| November | 69mm | 14 | 10.3°C | 5.2°C |
| December | 75mm | 14 | 7.8°C | 3.5°C |
Historical data: Open-Meteo archive, 2015–2024. A “rainy day” means at least 1mm of precipitation.
Running in Brussels: common questions
Will it rain in Brussels today?
The forecast card at the top of this page shows Brussels's rain probability for the current hour, plus an hour-by-hour breakdown for the rest of the day, using live Open-Meteo data. Historically, Brussels sees rain on about 148 days a year, so on any given day there is roughly a 41% chance of some rain falling.
Is it a good day to run in Brussels?
RainOrRun scores the live Brussels forecast on rain probability, rainfall amount, temperature, wind speed and severe weather, then returns a single verdict: Go, Maybe, or Don't Bother. A Maybe means conditions are borderline and it is worth picking your window rather than skipping the run.
What is the best time to run in Brussels today?
The hourly strip above highlights the best single window of the day for Brussels — the hour combining the lowest rain probability with the most comfortable temperature. You can also check up to eight days ahead using the date picker if you are planning a long run or a race.
What should I wear running in Brussels today?
The gear section on this page updates with the live Brussels forecast: a waterproof jacket and peaked cap when rain probability goes above 40%, a thermal base layer and gloves below 8 degrees Celsius, and a high-vis vest when wind or low light make you harder to see.
What is the wettest month in Brussels?
January is the wettest month in Brussels, averaging 75mm of rain across about 14 rainy days. April is the driest, with around 47mm over roughly 11 days. Figures are ten-year averages covering 2015 to 2024.
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