Belgium in May: where is it warmest?
In May, Ghent is the warmest place with 18 °C by day, Ostend the coolest with 15 °C. 19 of 22 destinations have good holiday weather.
All destinations in May, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Ghent | 74 | 18° | – | 7 h | 12 |
| Mechelen | 74 | 18° | – | 7 h | 12 |
| Antwerp | 73 | 18° | – | 7 h | 13 |
| Brussels | 73 | 18° | – | 6 h | 12 |
| Liège | 73 | 18° | – | 7 h | 13 |
| Leuven | 73 | 18° | – | 7 h | 13 |
| Hasselt | 73 | 18° | – | 7 h | 13 |
| Mons | 72 | 18° | – | 6 h | 12 |
| Tournai | 72 | 18° | – | 6 h | 12 |
| Namur | 71 | 18° | – | 6 h | 13 |
| Dinant | 71 | 18° | – | 6 h | 13 |
| Waterloo | 69 | 18° | – | 6 h | 13 |
| Ypres | 72 | 17° | – | 7 h | 12 |
| Eupen | 68 | 17° | – | 6 h | 14 |
| Bruges | 70 | 16° | – | 7 h | 12 |
| Spa | 66 | 16° | – | 6 h | 14 |
| Malmedy | 65 | 16° | – | 6 h | 14 |
| Bastogne | 61 | 16° | – | 6 h | 15 |
| Zeebrugge | 23 | 16° | 12° | 7 h | 12 |
| Knokke-Heist | 23 | 16° | 13° | 7 h | 12 |
| De Haan | 70 | 15° | – | 7 h | 11 |
| Ostend | 24 | 15° | 12° | 7 h | 11 |
Belgium in May: quick answers
Belgium in May: where is it warmest?
The warmest places in May are Ghent (18 °C), Mechelen (18 °C) and Antwerp (18 °C).
Belgium in May: where is the sea warmest?
The sea is warmest at Knokke-Heist (13 °C), Zeebrugge (12 °C) and Ostend (12 °C).
Belgium in May: where is the weather best?
The best holiday weather in May – warm, sunny and dry – is in Ghent, Mechelen and Antwerp.
Belgium month by month
Belgium: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences