March in Dortmund averages a daily high of 10.5°C with nights around 2.1°C. Expect roughly 13.4 wet days totalling 58.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Dortmund is May–September.
Based on BOCHUM, GM (14.1km), 1995–2024. 13 years of March data.