April in Ostend averages a daily high of 13.3°C with nights around 6.9°C. Expect roughly 10.8 wet days totalling 33.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ostend is June–September.
Based on WEST SOUBURG, NL (53.5km), 1995–2024. 30 years of April data.