Houston
September
Weather in Houston for September 2025
Your guide to Houston weather in September - trends and predictions
In general, the average temperature in Houston at the beginning of September is 32.6 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 33 °F by the end of September.
Houston in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 77.7 mm.
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Temperatures
Rain 🌧️
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14
Dry days
16
Rainy days
0
Snow days
33°/24°
Temperatures
16 km/h
Avg max wind
63 %
Avg humidity
Houston in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  33° | 2 33° | 3 33° | 4  31° | 5 31° | 6 33° | 7  34° |
| 8  35° | 9  34° | 10 34° | 11 33° | 12  32° | 13 33° | 14 31° |
| 15 32° | 16 32° | 17 34° | 18 34° | 19 34° | 20 34° | 21 35° |
| 22 34° | 23 34° | 24 33° | 25 33° | 26 33° | 27 33° | 28 34° |
| 29 32° | 30 33° |
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Temperatures trend during September in Houston
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 | Moderate rain at times | 33° /24° | 4.7 mm | 8 | |
| Sept. 2 | Moderate or heavy rain shower | 33° /24° | 4.5 mm | 7 | |
| Sept. 3 | Moderate rain at times | 33° /25° | 7 mm | 7 | |
| Sept. 4 | Light rain shower | 31° /24° | 2 mm | 7 | |
| Sept. 5 | Patchy rain possible | 31° /24° | 0.7 mm | 7 | |
| Sept. 6 | Patchy rain possible | 33° /25° | 0.8 mm | 7 | |
| Sept. 7 | Partly cloudy | 34° /23° | 0.7 mm | 8 | |
| Sept. 8 | Cloudy | 35° /23° | 0 mm | 8 | |
| Sept. 9 | Sunny | 34° /23° | 0.2 mm | 8 | |
| Sept. 10 | Sunny | 34° /23° | 1.3 mm | 8 | |
| Sept. 11 | Partly cloudy | 33° /22° | 2.5 mm | 8 | |
| Sept. 12 | Overcast | 32° /23° | 0 mm | 7 | |
| Sept. 13 | Moderate or heavy rain shower | 33° /23° | 7.7 mm | 8 | |
| Sept. 14 | Moderate rain at times | 31° /23° | 12.2 mm | 7 | |
| Sept. 15 | Patchy rain possible | 32° /23° | 1 mm | 8 | |
| Sept. 16 | Patchy rain possible | 32° /24° | 2 mm | 7 | |
| Sept. 17 | Patchy rain possible | 34° /24° | 0.6 mm | 8 | |
| Sept. 18 | Patchy rain possible | 34° /24° | 0.4 mm | 8 | |
| Sept. 19 | Cloudy | 34° /24° | 0.1 mm | 8 | |
| Sept. 20 | Moderate rain at times | 34° /24° | 0.3 mm | 8 | |
| Sept. 21 | Partly cloudy | 35° /24° | 0.1 mm | 8 | |
| Sept. 22 | Partly cloudy | 34° /23° | 0.1 mm | 8 | |
| Sept. 23 | Sunny | 34° /22° | 2.8 mm | 8 | |
| Sept. 24 | Sunny | 33° /22° | 3.6 mm | 8 | |
| Sept. 25 | Sunny | 33° /23° | 0 mm | 8 | |
| Sept. 26 | Partly cloudy | 33° /22° | 5.9 mm | 8 | |
| Sept. 27 | Patchy rain possible | 33° /22° | 0.2 mm | 8 | |
| Sept. 28 | Sunny | 34° /22° | 6.5 mm | 8 | |
| Sept. 29 | Sunny | 32° /22° | 7 mm | 8 | |
| Sept. 30 | Sunny | 33° /22° | 2.9 mm | 8 | |
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Important Notice
Our weather forecast for Houston 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 Houston forecast closer to your planned date for the most up-to-date weather information.
Houston in September - FAQ
What are the expected maximum and minimum temperatures in Houston during September?
During September, expect a variety of temperatures with highs around 33° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Houston during September?
Moderate rainfall is anticipated in Houston during September, with a total of 77.7 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Houston during September?
The average wind speed in Houston during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Houston
Explore the daily rainfall trends and prepare for Houstons September weather 💧
UV exposure in Houston during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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