March in Deventer averages a daily high of 10.2°C with nights around 1.6°C. Expect roughly 13 wet days totalling 53.5mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Deventer is May–September.
Based on HEINO, NL (20.9km), 1995–2024. 30 years of March data.