Weather in Brownsville in September
Brownsville, United States averages a high of 31°C (87.8°F) and low of 24.6°C (76.3°F) in September, with 14 rain days and 10.4 hours of daily sunshine. Travel score: 75/100 (Good). The best time to visit Brownsville is April.
High
31°C88°F
Low
25°C76°F
🌧️
14
rain days
☀️
10.4
hrs/day sunshine
💧
77%
humidity
75— Good
September in Brownsville is hot and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Brownsville?
How much does it rain in Brownsville in September?
Brownsville receives an average of 114.7mm of rainfall across 14 rainy days in September. The annual total is 648mm.
What should I pack for Brownsville in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 31°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31