SeasonMapOstend weather in May
Belgium
May in Ostend: cool, a little rain, with clean air — a great time to visit.
#5 of 12 months in Ostend · #937 of 1383 destinations to visit in May · comfort 74/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ostend in May
No notes yet. Open Ostend on the map to add the first one.
Ostend climate normals — May
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Sea temperature | 14°C / 57°F | 🥶 cold sea |
| Rainfall | 50 mm / 2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 9°C / 49°F | |
| Sunshine | 12.3 h/day | |
| Daylight | 15.6 h | |
| Wind | 26 km/h / 16 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Ostend in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyOostende voor Anker, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Ostend's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherOstend's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Ostend in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Oostende voor Anker
18 May – 2 Jun · usuallyMajor festivalCrowdedTall ships and old fishing boats fill the harbour for four days at the end of May, the quays given over to shanties and fried fish. It went to every second year after 2026, so the next one is 2028. Source ↗
Nearby, and something's on
Within 300 km of Ostend — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Ostend?
Ostend in May — FAQ
- Is May a good time to visit Ostend?
- May in Ostend: cool, a little rain, with clean air — a great time to visit. It ranks #5 of 12 months for Ostend on SeasonMap's comfort score (74/100).
- What is the weather like in Ostend in May?
- In May, Ostend averages a daily high of 15°C and a low of 9.8°C, with about 50.1 mm of rain over roughly 9.2 rainy days.
- What is the air quality in Ostend in May?
- Ostend has a mean US Air Quality Index of about 49 in May.
Other months in Ostend
Compare Ostend in May
Warmer or cooler than Ostend in May
Similar destinations in Western Europe — May
Within 300 km: Bruges' Procession of the Holy Blood around 30 Apr – 5 Jun, and Brussels' Brussels Jazz Weekend around 22–24 May.