May in Gävle averages a daily high of 15.1°C with nights around 3.9°C. Expect roughly 9.8 wet days totalling 41.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Gävle is June–September.
Based on GAVLE A, SW (5.2km), 1995–2024. 28 years of May data.