May in Gothenburg averages a daily high of 17°C with nights around 8.3°C. Expect roughly 11.6 wet days totalling 58.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Gothenburg is June–August.
Based on GOTEBORG A, SW (1.9km), 1995–2024. 28 years of May data.