Richland County (Columbia)
September
Weather in Richland County, South Carolina for September 2026
Your guide to Richland County weather in September - trends and predictions
So far, September 2026 in Richland County shows a warmer trend than usual by 2.5 °F.
The forecast for the next days in Richland County predicts a temperature of 28.6 °F, which is cooler than the historical average.
In general, the average temperature in Richland County at the beginning of September is 31.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 29.6 °F by the end of September.
The climate of Richland County in September is notably wet, with an average of 11 rainy days, and a total of 119.9 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
11
Rainy days
0
Snow days
28°/20°
Temperatures
16 km/h
Avg max wind
69 %
Avg humidity
Richland County Weather September
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Temperatures trend during September in Richland County
See the weather trend as well as the moving average line
September weather in Richland County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 33° /21° | 0.1 mm | 8 | |
| Sept. 2 |  Sunny | 33° /21° | 0.6 mm | 8 | |
| Sept. 3 | Sunny | 32° /20° | 0 mm | 8 | |
| Sept. 4 | Sunny | 32° /19° | 0 mm | 8 | |
| Sept. 5 |  Overcast | 33° /21° | 0 mm | 8 | |
| Sept. 6 | Patchy rain possible | 31° /20° | 1.2 mm | 7 | |
| Sept. 7 | Patchy rain possible | 29° /21° | 3.5 mm | 7 | |
| Sept. 8 | Patchy rain possible | 29° /19° | 0.1 mm | 7 | |
| Sept. 9 | Sunny | 29° /18° | 0 mm | 7 | |
| Sept. 10 | Sunny | 30° /18° | 0.1 mm | 7 | |
| Sept. 11 | Overcast | 29° /20° | 1.9 mm | 5 | |
| Sept. 12 | Patchy rain possible | 28° /19° | 2.1 mm | 5 | |
| Sept. 13 | Patchy rain possible | 29° /20° | 0.2 mm | 6 | |
| Sept. 14 |  Moderate rain at times | 31° /20° | 0.4 mm | 8 | |
| Sept. 15 | Patchy rain possible | 30° /20° | 0.2 mm | 6 | |
| Sept. 16 | Patchy rain possible | 26° /19° | 1.6 mm | 6 | |
| Sept. 17 | Overcast | 30° /18° | 0.1 mm | 7 | |
| Sept. 18 | Patchy rain possible | 31° /20° | 0.5 mm | 7 | |
| Sept. 19 | Moderate or heavy rain shower | 31° /20° | 20.3 mm | 6 | |
| Sept. 20 | Moderate rain at times | 31° /21° | 0.7 mm | 7 | |
| Sept. 21 | Patchy rain possible | 32° /21° | 0.1 mm | 8 | |
| Sept. 22 |  Partly cloudy | 32° /20° | 3.8 mm | 7 | |
| Sept. 23 | Patchy rain possible | 28° /19° | 1.1 mm | 5 | |
| Sept. 24 | Moderate or heavy rain shower | 27° /19° | 10.2 mm | 6 | |
| Sept. 25 | Moderate or heavy rain shower | 29° /19° | 1 mm | 7 | |
| Sept. 26 | Moderate or heavy rain shower | 27° /23° | 28.4 mm | 6 | |
| Sept. 27 | Sunny | 29° /15° | 0 mm | 7 | |
| Sept. 28 | Sunny | 30° /16° | 0 mm | 6.9 | |
| Sept. 29 | Sunny | 32° /18° | 0 mm | 6.9 | |
| Sept. 30 | Sunny | 33° /21° | 0 mm | 6.9 | |
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Important Notice
Our weather forecast for Richland 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 Richland County forecast closer to your planned date for the most up-to-date weather information.
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Richland County in September - FAQ
What are the expected maximum and minimum temperatures in Richland County during September?
During September, expect a variety of temperatures with highs around 28° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Richland County during September?
Significant rainfall exceeding 119.9 mm is expected in Richland County during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Richland County during September?
The average wind speed in Richland County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Richland County
Explore the daily rainfall trends and prepare for Richland Countys September weather 💧
Typically, Richland County has 11 rainy days in September with a total of 119.9 mm of rainfall.
UV exposure in Richland County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Richland County?Get accurate weather forecasts for Richland County, located at latitude 34.001 and longitude -81.035. Stay updated with localized weather information tailored for Richland County.
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