May in Birmingham averages a daily high of 28°C with nights around 16.2°C. Expect roughly 9.6 wet days totalling 123.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Birmingham is October–November.
Based on BIRMINGHAM AIRPORT, AL US (7.3km), 1995–2024. 30 years of May data.