Brownsville
September
Weather in Brownsville for September 2025
Your guide to Brownsville weather in September - trends and predictions
In general, the average temperature in Brownsville at the beginning of September is 34.4 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 33.6 °F by the end of September.
With an average of 5 rainy days, Brownsville experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
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25
Dry days
5
Rainy days
0
Snow days
36°/26°
Temperatures
26 km/h
Avg max wind
67 %
Avg humidity
Brownsville in September average weather
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Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 36° | 2 34° | 3 35° | 4 34° | 5 34° | 6 35° | 7 33° |
8 32° | 9 33° | 10 31° | 11 34° | 12 34° | 13 34° | 14 35° |
15 34° | 16 33° | 17 33° | 18 35° | 19 33° | 20 33° | 21 35° |
22 34° | 23 34° | 24 35° | 25 33° | 26 32° | 27 34° | 28 34° |
29 34° | 30 33° |
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Temperatures trend during September in Brownsville
See the weather trend as well as the moving average line
September weather day by day
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Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
Sept. 1 | Mist | 36° /26° | 0.7 mm | 8 | |
Sept. 2 | Cloudy | 34° /25° | 2.3 mm | 8 | |
Sept. 3 | Mist | 35° /25° | 6.7 mm | 8 | |
Sept. 4 | Mist | 34° /26° | 16.9 mm | 8 | |
Sept. 5 | Overcast | 34° /26° | 2.3 mm | 8 | |
Sept. 6 | Patchy rain possible | 35° /26° | 2.6 mm | 8 | |
Sept. 7 | Cloudy | 33° /26° | 0.1 mm | 7 | |
Sept. 8 | Partly cloudy | 32° /26° | 9.8 mm | 8 | |
Sept. 9 | Cloudy | 33° /25° | 0.9 mm | 7 | |
Sept. 10 | Patchy rain possible | 31° /25° | 36.9 mm | 7 | |
Sept. 11 | Overcast | 34° /25° | 0.1 mm | 8 | |
Sept. 12 | Partly cloudy | 34° /24° | 0.4 mm | 8 | |
Sept. 13 | Partly cloudy | 34° /26° | 0 mm | 8 | |
Sept. 14 | Partly cloudy | 35° /26° | 0 mm | 8 | |
Sept. 15 | Cloudy | 34° /27° | 2.3 mm | 8 | |
Sept. 16 | Thundery outbreaks possible | 33° /26° | 2.8 mm | 8 | |
Sept. 17 | Light rain shower | 33° /25° | 3.3 mm | 7 | |
Sept. 18 | Patchy rain possible | 35° /24° | 1.1 mm | 8 | |
Sept. 19 | Moderate rain at times | 33° /25° | 2.2 mm | 7 | |
Sept. 20 | Partly cloudy | 33° /25° | 0 mm | 8 | |
Sept. 21 | Patchy rain possible | 35° /25° | 0 mm | 8 | |
Sept. 22 | Partly cloudy | 34° /25° | 0.1 mm | 8 | |
Sept. 23 | Overcast | 34° /26° | 0 mm | 7 | |
Sept. 24 | Patchy rain possible | 35° /26° | 0.1 mm | 8 | |
Sept. 25 | Cloudy | 33° /26° | 0 mm | 8 | |
Sept. 26 | Cloudy | 32° /25° | 0 mm | 7 | |
Sept. 27 | Patchy rain possible | 34° /22° | 0.9 mm | 7 | |
Sept. 28 | Patchy rain possible | 34° /24° | 0 mm | 8 | |
Sept. 29 | Patchy rain possible | 34° /24° | 0.1 mm | 8 | |
Sept. 30 | Light rain shower | 33° /25° | 0.6 mm | 7 | |
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Important Notice
Our weather forecast for Brownsville in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Brownsville forecast closer to your planned date for the most up-to-date weather information.
Brownsville in September - FAQ
What are the expected maximum and minimum temperatures in Brownsville during September?
With daytime temperatures soaring above 36° and not dropping much below 26° at night, September in Brownsville is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Brownsville during September?
Expect minimal rainfall in Brownsville during September, with a total of 17.3 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Brownsville during September?
The average wind speed in Brownsville during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
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