August in Brownsville averages a daily high of 35.2°C with nights around 25.1°C. Expect roughly 6.3 wet days totalling 56.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Brownsville is November–March.
Based on BROWNSVILLE S PADRE ISLAND INTERNATIONAL AIRPORT, TX US (8km), 1995–2024. 30 years of August data.