May in League City averages a daily high of 29.2°C with nights around 20.2°C. Expect roughly 7.5 wet days totalling 130.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit League City is February–May.
Based on HOUSTON NATIONAL WEATHER SERVICE OFFICE, TX US (4.1km), 1995–2024. 30 years of May data.