May in Lafayette averages a daily high of 30.1°C with nights around 19.6°C. Expect roughly 8.1 wet days totalling 142.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Lafayette is February–April.
Based on LAFAYETTE REGIONAL AIRPORT, LA US (4.1km), 1995–2024. 30 years of May data.