March in Iserlohn averages a daily high of 8.5°C with nights around 1°C. Expect roughly 15.8 wet days totalling 89.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Iserlohn is June–September.
Based on LUDENSCHEID, GM (14.9km), 1995–2024. 30 years of March data.