Belgium in May: Weather, Crowds & What to Expect
Climate Map for May
Average temperature across Belgium in May.
City Weather in May
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| City of Brussels | 19° | 9° | 68 mm | high | Cool |
| Antwerp | 18° | 9° | 64 mm | high | Cool |
| Gent | 18° | 9° | 62 mm | high | Cool |
| Charleroi | 18° | 8° | 71 mm | high | Cool |
| Liège | 19° | 8° | 71 mm | high | Cool |
| Bruges | 17° | 9° | 59 mm | high | Cool |
| Namur | 18° | 8° | 69 mm | high | Cool |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Belgian Coast (West Flanders - Ostend, Knokke, De Panne)
May is one of the best months for the coast: milder air and longer daylight make cycling the coastal cycle paths pleasant, though wind still adds a bracing feel to bike rides between Blankenberge and Ostend. Occasional warm spells tempt people to sunbathe and eat alfresco, but showers remain common so fishing villages and seafood restaurants are good fallback plans. Pack sunscreen for sudden sun and a windproof layer for evening promenades.
Flanders & Canal Cities (Bruges, Ghent, Antwerp)
May often feels reliably pleasant, with longer daylight and mild 15-20°C temperatures that make cycling the polders and canal towpaths enjoyable, and terraces fill in the evenings. Ghent’s street life livens up with festivals and outdoor concerts; crowds increase, but there is still comfortable breathing space compared to July. A light cardigan and rain jacket will cover most eventualities and comfortable walking shoes are essential for the cobbles.
Brussels & Central Plateau (Brussels, Leuven, Mechelen)
May is one of the most agreeable months to be in Brussels: warmer temperatures, long daylight, and lively terraces around Place Flagey and Place Sainte-Catherine. Outdoor festivals and street markets fill squares and the botanical garden in Meise is at its freshest. Pack a sun hat for unexpected sunny stretches and a light rain jacket - rain showers can interrupt an otherwise warm day.
The Ardennes & High Fens (Spa, La Roche-en-Ardenne, Malmedy, Baraque Michel)
May is a lively month for flowering meadows and open trails, with pleasant daytime temperatures for hiking and cycling in the valleys around Bastogne and Dinant. Mosquitoes can appear near slow streams, and sudden thunderstorms occasionally interrupt long ridge walks. For travelers eager for outdoor pursuits, May is ideal: pack insect repellent and waterproofs, and plan for some wet trail conditions from spring rains.