May in Rheine averages a daily high of 19°C with nights around 8.2°C. Expect roughly 12.3 wet days totalling 57mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Rheine is May–September.
Based on MUENSTER OSNABRUECK AIRPORT, GM (24.3km), 1995–2024. 30 years of May data.