Weather in Pasadena, Texas for September 2025
Meteorological - Air Quality Alert - See hour by hour.
Until now, September 2025 in Pasadena has been nearly identical to the historical average, with a temperature of 33.4 °F (showing only a slight deviation of -0.4 °F).
The forecast for the next days in Pasadena predicts temperatures to be around 33 °F, close to the historical average.
In general, the average temperature in Pasadena at the beginning of September is 33.6 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 33.9 °F by the end of September.
The climate of Pasadena in September is notably wet, with an average of 12 rainy days, and a total of 76.5 mm of precipitation.
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Pasadena Weather September
Temperatures trend during September in Pasadena
September weather in Pasadena day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 33° /25° | 8.8 mm | 7 | |
| Sept. 2 | Patchy rain possible | 34° /25° | 5.1 mm | 7 | |
| Sept. 3 |  Partly cloudy | 35° /25° | 0.2 mm | 8 | |
| Sept. 4 | Light rain shower | 33° /25° | 5 mm | 7 | |
| Sept. 5 |  Mist | 32° /25° | 2 mm | 7 | |
| Sept. 6 | Partly cloudy | 34° /25° | 0.2 mm | 7 | |
| Sept. 7 |  Sunny | 34° /24° | 0 mm | 8 | |
| Sept. 8 | Sunny | 34° /23° | 0 mm | 8 | |
| Sept. 9 | Sunny | 34° /22° | 0.1 mm | 8 | |
| Sept. 10 |  Cloudy | 34° /23° | 2.5 mm | 8 | |
| Sept. 11 | Partly cloudy | 33° /24° | 8 mm | 7 | |
| Sept. 12 |  Overcast | 34° /24° | 0.1 mm | 7 | |
| Sept. 13 | Partly cloudy | 35° /23° | 0 mm | 8 | |
| Sept. 14 |  Moderate or heavy rain shower | 33° /24° | 7.5 mm | 8 | |
| Sept. 15 | Partly cloudy | 34° /26° | 0 mm | 1.7 | |
| Sept. 16 | Sunny | 37° /25° | 0 mm | 1.9 | |
| Sept. 17 | Sunny | 36° /25° | 0 mm | 2 | |
| Sept. 18 | Sunny | 33° /25° | 0 mm | 2 | |
| Sept. 19 | Sunny | 33° /25° | 0 mm | 0 | |
| Sept. 20 | Patchy rain possible | 33° /24° | 0.3 mm | 6 | |
| Sept. 21 | Partly cloudy | 34° /25° | 0 mm | 7 | |
| Sept. 22 | Patchy rain possible | 30° /24° | 3.5 mm | 6 | |
| Sept. 23 | Patchy rain possible | 29° /22° | 2.9 mm | 6 | |
| Sept. 24 | Patchy rain possible | 31° /22° | 0.3 mm | 6 | |
| Sept. 25 | Sunny | 34° /24° | 0 mm | 7 | |
| Sept. 26 | Sunny | 33° /24° | 0 mm | 7 | |
| Sept. 27 | Sunny | 33° /25° | 0 mm | 7 | |
| Sept. 28 | Patchy rain possible | 36° /24° | 0 mm | 9 | |
| Sept. 29 | Patchy rain possible | 34° /24° | 0.1 mm | 8 | |
| Sept. 30 | Patchy rain possible | 36° /24° | 0.3 mm | 9 | |
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Pasadena in September - FAQ
September rainfall patterns in Pasadena
UV exposure in Pasadena during September
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Where is Pasadena?Get accurate weather forecasts for Pasadena, located at latitude 29.691 and longitude -95.209. Stay updated with localized weather information tailored for Pasadena.