Harris County (Houston)
September
Weather in Harris County, Texas for September 2027
Your guide to Harris County weather in September - trends and predictions
In general, the average temperature in Harris County at the beginning of September is 32.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 32.8 °C by the end of September.
Harris County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 236.8 mm.
Is September a good time to visit Harris County? check out the best time to travel to Harris County page.
✨ Is September a good time to visit Harris County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
33°/24°
Temperatures
16 km/h
Avg max wind
65 %
Avg humidity
Harris County Weather September
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Temperatures trend during September in Harris County
See the weather trend as well as the moving average line
September weather in Harris County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 32° /25° | 9.4 mm | 6 | |
| Sept. 2 |  Moderate rain | 33° /25° | 22.7 mm | 6 | |
| Sept. 3 |  Heavy rain | 33° /25° | 30 mm | 6 | |
| Sept. 4 |  Light rain | 32° /25° | 2.8 mm | 7 | |
| Sept. 5 | Heavy rain | 31° /24° | 32.9 mm | 7 | |
| Sept. 6 | Heavy rain | 32° /25° | 26.1 mm | 7 | |
| Sept. 7 |  Partly cloudy | 33° /24° | 0.5 mm | 8 | |
| Sept. 8 | Heavy rain | 34° /23° | 47.9 mm | 8 | |
| Sept. 9 |  Patchy rain possible | 34° /23° | 1.2 mm | 8 | |
| Sept. 10 | Moderate rain | 34° /24° | 12.5 mm | 8 | |
| Sept. 11 | Light rain | 33° /23° | 4.1 mm | 7 | |
| Sept. 12 |  Overcast | 33° /24° | 0.2 mm | 7 | |
| Sept. 13 | Moderate or heavy rain shower | 33° /24° | 5.7 mm | 8 | |
| Sept. 14 | Moderate or heavy rain shower | 32° /24° | 8.7 mm | 8 | |
| Sept. 15 | Patchy rain possible | 33° /24° | 1.1 mm | 8 | |
| Sept. 16 | Patchy rain possible | 33° /25° | 1.6 mm | 7 | |
| Sept. 17 | Light rain | 33° /25° | 2.8 mm | 6 | |
| Sept. 18 | Patchy rain possible | 34° /25° | 0.4 mm | 8 | |
| Sept. 19 |  Sunny | 34° /24° | 0.1 mm | 8 | |
| Sept. 20 | Partly cloudy | 34° /24° | 0.4 mm | 8 | |
| Sept. 21 | Patchy rain possible | 34° /25° | 2 mm | 7 | |
| Sept. 22 | Overcast | 34° /24° | 0.4 mm | 8 | |
| Sept. 23 | Patchy rain possible | 34° /24° | 2.1 mm | 8 | |
| Sept. 24 | Light rain | 33° /24° | 2.5 mm | 7 | |
| Sept. 25 | Light rain | 32° /24° | 2.8 mm | 7 | |
| Sept. 26 | Light rain | 33° /23° | 3.9 mm | 7 | |
| Sept. 27 | Patchy rain possible | 33° /23° | 0.1 mm | 7 | |
| Sept. 28 | Light rain | 34° /23° | 4.8 mm | 8 | |
| Sept. 29 | Moderate or heavy rain shower | 32° /23° | 5.4 mm | 7 | |
| Sept. 30 | Patchy rain possible | 33° /23° | 2.1 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Harris County 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 Harris County forecast closer to your planned date for the most up-to-date weather information.
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Harris County in September - FAQ
What are the expected maximum and minimum temperatures in Harris County 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 Harris County during September?
Significant rainfall exceeding 236.8 mm is expected in Harris County during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Harris County during September?
The average wind speed in Harris County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Harris County
Explore the daily rainfall trends and prepare for Harris Countys September weather 💧
Typically, Harris County has 10 rainy days in September with a total of 236.8 mm of rainfall.
UV exposure in Harris County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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