Weather in Houston, Texas for September 2026
Until now, September 2026 in Houston has been nearly identical to the historical average, with a temperature of 32.6 °F (showing only a slight deviation of 0.5 °F).
The forecast for the next days in Houston predicts temperatures to be around 34 °F, close to the historical average.
In general, the average temperature in Houston at the beginning of September is 32.9 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 33 °F by the end of September.
Houston experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 73.8 mm.
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Houston Weather September
Temperatures trend during September in Houston
September weather in Houston day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 32° /25° | 9.4 mm | 6 | |
| Sept. 2 | Moderate or heavy rain shower | 34° /25° | 22.7 mm | 6 | |
| Sept. 3 |  Patchy rain possible | 33° /24° | 30 mm | 6 | |
| Sept. 4 | Light rain shower | 32° /24° | 2.8 mm | 7 | |
| Sept. 5 | Patchy rain possible | 32° /24° | 32.9 mm | 7 | |
| Sept. 6 | Patchy rain possible | 33° /25° | 26.1 mm | 7 | |
| Sept. 7 |  Partly cloudy | 34° /24° | 0.5 mm | 8 | |
| Sept. 8 |  Sunny | 35° /23° | 47.9 mm | 8 | |
| Sept. 9 | Sunny | 34° /23° | 1.2 mm | 8 | |
| Sept. 10 | Light rain shower | 34° /25° | 21.6 mm | 8.4 | |
| Sept. 11 | Patchy rain possible | 35° /26° | 5.4 mm | 9.1 | |
| Sept. 12 | Sunny | 36° /26° | 0.2 mm | 2.8 | |
| Sept. 13 | Sunny | 36° /27° | 0 mm | 9.4 | |
| Sept. 14 | Sunny | 35° /27° | 0.1 mm | 8 | |
| Sept. 15 |  Overcast | 34° /28° | 0 mm | 8 | |
| Sept. 16 | Sunny | 36° /27° | 0 mm | 9 | |
| Sept. 17 | Sunny | 35° /27° | 0 mm | 9 | |
| Sept. 18 | Overcast | 34° /26° | 13.1 mm | 7 | |
| Sept. 19 | Sunny | 32° /25° | 0.9 mm | 8 | |
| Sept. 20 | Sunny | 32° /22° | 0 mm | 8 | |
| Sept. 21 | Sunny | 33° /21° | 0 mm | 8 | |
| Sept. 22 | Sunny | 35° /23° | 0 mm | 9 | |
| Sept. 23 | Sunny | 34° /23° | 2.3 mm | 8 | |
| Sept. 24 | Sunny | 33° /23° | 2.9 mm | 8 | |
| Sept. 25 | Overcast | 32° /23° | 3.3 mm | 7 | |
| Sept. 26 | Partly cloudy | 33° /23° | 4.7 mm | 8 | |
| Sept. 27 | Patchy rain possible | 33° /22° | 0.1 mm | 8 | |
| Sept. 28 | Sunny | 34° /22° | 5.2 mm | 8 | |
| Sept. 29 | Sunny | 33° /22° | 5.6 mm | 8 | |
| Sept. 30 | Sunny | 33° /22° | 2.3 mm | 8 | |
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Houston in September - FAQ
What are the expected maximum and minimum temperatures in Houston during September?
How much rainfall should be expected in Houston during September?
What are the typical wind conditions in Houston during September?
September rainfall patterns in Houston
UV exposure in Houston during September
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