March in Brownsville averages a daily high of 26.5°C with nights around 16.3°C. Expect roughly 5.3 wet days totalling 36.1mm. Comfortable conditions for being outdoors all day.
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 March data.