April in Marienthal averages a daily high of 13.9°C with nights around 3.9°C. Expect roughly 11.2 wet days totalling 39.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Marienthal is May–September.
Based on HAMBURG FUHLSBUETTEL, GM (9.8km), 1995–2024. 30 years of April data.