March in Gießen averages a daily high of 10.3°C with nights around 1.1°C. Expect roughly 12.4 wet days totalling 41.7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Gießen is May–September.
Based on GIESSEN WETTENBERG, GM (2.3km), 1995–2024. 30 years of March data.