May in Laredo averages a daily high of 34.6°C with nights around 22.2°C. Expect roughly 5.7 wet days totalling 94.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Laredo is November–March.
Based on LAREDO INTERNATIONAL AIRPORT, TX US (5km), 1995–2024. 13 years of May data.