May in Bath averages a daily high of 16.7°C with nights around 7.7°C. Expect roughly 12.9 wet days totalling 61.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bath is June–September.
Based on LYNEHAM, UK (29.3km), 1995–2024. 30 years of May data.