May in Bergen averages a daily high of 15.1°C with nights around 7.1°C. Expect roughly 16.1 wet days totalling 107mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Bergen is June–August.
Based on BERGEN FLORIDA, NO (1.2km), 1995–2024. 30 years of May data.