November in Gronau averages a daily high of 9.4°C with nights around 3.2°C. Expect roughly 15.8 wet days totalling 64mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Gronau is May–September.
Based on TWENTHE, NL (11.3km), 1995–2024. 30 years of November data.