May in Lelystad averages a daily high of 18.1°C with nights around 8.1°C. Expect roughly 12.5 wet days totalling 61.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Lelystad is May–September.
Based on LELYSTAD, NL (6.5km), 1995–2024. 30 years of May data.