Climate averages 1991–2020
Brussels weather
in April.
A cool, moderately wet month: the 7th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Brussels: daytime highs average 14.4°C and nights cool to about 5.4°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 48 mm of rain on roughly 11 days, which makes April a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 47 min on an average April day.
The nearest other city in this atlas is Ixelles (2 km away). In April its highs average 14.1°C, about as warm as Brussels, with 48 mm of rain.
Among the 18 cities listed in Belgium, Brussels ranks joint 2nd of 18 for the warmest April highs and joint 7th of 18 for the driest April (rainfall, lowest first). The mean April high of those 18 cities is 14.2°C; Brussels is 0.2°C warmer than that mean.
From April to May, average highs rise by 3.5°C to 17.8°C, and monthly rainfall rises from 48 mm to 62 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Brussels climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.1°C1.4°C | 1.4°C | 63 | 12.0 | 8.58 h |
| February | 7.2°C1.4°C | 1.4°C | 58 | 11.4 | 10.010 h |
| March | 10.6°C3.1°C | 3.1°C | 56 | 11.8 | 11.812 h |
| April, selected | 14.4°C5.4°C | 5.4°C | 48 | 11.4 | 13.814 h |
| May | 17.8°C9.1°C | 9.1°C | 62 | 12.2 | 15.515 h |
| June | 20.6°C12.1°C | 12.1°C | 65 | 11.5 | 16.416 h |
| July | 22.6°C14.3°C | 14.3°C | 70 | 12.2 | 16.016 h |
| August | 22.5°C14.2°C | 14.2°C | 73 | 12.1 | 14.615 h |
| September | 19.2°C11.7°C | 11.7°C | 54 | 10.5 | 12.713 h |
| October | 14.9°C8.7°C | 8.7°C | 58 | 11.2 | 10.811 h |
| November | 9.9°C5.0°C | 5.0°C | 64 | 11.9 | 9.09 h |
| December | 6.6°C2.2°C | 2.2°C | 74 | 13.0 | 8.08 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Ixelles in AprilBelgium · 2 kmHigh 14.1°C · Low 5.1°C · 48 mm rain
- Anderlecht in AprilBelgium · 3 kmHigh 14.4°C · Low 5.5°C · 48 mm rain
- Schaerbeek in AprilBelgium · 3 kmHigh 14.4°C · Low 5.4°C · 50 mm rain
- Mechelen in AprilBelgium · 21 kmHigh 14.6°C · Low 5.5°C · 45 mm rain
- Aalst in AprilBelgium · 24 kmHigh 14.4°C · Low 5.6°C · 48 mm rain
- Leuven in AprilBelgium · 25 kmHigh 14.4°C · Low 5.3°C · 46 mm rain
- Antwerp in AprilBelgium · 41 kmHigh 14.3°C · Low 5.6°C · 47 mm rain
- La Louvière in AprilBelgium · 42 kmHigh 13.8°C · Low 4.9°C · 51 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Brussels) is explained once on the Brussels year overview and on the Sources, method and limits page.
Anderlecht and Ixelles lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.