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Hourly Forecast
Daylight Hours
07:11
Sunrise
19:19
Sunset
Moon
Waxing Crescent
11:20
Moonrise
21:28
Moonset
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Weather in Brownsville today, September 15, 2026
Brownsville starts September 15, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The morning looks comparatively open, with cloud near 22% around 06:00. Early outdoor plans have a better chance of staying dry and bright.
The temperature range runs from about 26°C up to 31°C. Expect humidity between 66% and 92%, most humid near 06:00. A lighter breeze peaks around 18:00 near 4.8 km/h.
Through the afternoon cloud remains the main feature, with cover near 97% around 13:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.8 km, briefly nearer 14.0 km. Expect sunrise at 07:11, sunset at 19:19, and 12 hours 8 minutes of sunlight today overall.
In short, September 15, 2026 looks like a fine day in Brownsville for being outside, peaking around 31°C.
Frequently asked questions about weather in Brownsville
How warm does it get in Brownsville?
The warmest month in Brownsville is August, with average high temperatures of 30°C. The average temperature during this period is around 29°C.
How cold does it get in Brownsville?
The coldest month in Brownsville is January, with average low temperatures of 18°C. The average temperature during this period is around 21°C.
What is the wettest time of year in Brownsville?
The wettest month in Brownsville is September, with an average of 216mm of precipitation.
What is the driest time of year in Brownsville?
The driest month in Brownsville is February, with an average of 41mm of precipitation.
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