South Carolina (Myrtle Beach)
September
Weather in South Carolina for September 2026
Your guide to South Carolina weather in September - trends and predictions
So far, September 2026 in South Carolina is slightly warmer than the historical average by 1.9 °F.
The forecast for the next days in South Carolina predicts a temperature of 26.3 °F, which is cooler than the historical average.
In general, the average temperature in South Carolina at the beginning of September is 30 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 27.7 °F by the end of September.
South Carolina in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 138.3 mm.
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Temperatures
Rain 🌧️
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13
Dry days
17
Rainy days
0
Snow days
27°/21°
Temperatures
20 km/h
Avg max wind
77 %
Avg humidity
South Carolina Weather September
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What’s the Weather Like in South Carolina This September?
Discover the average temperatures and weather trends across South Carolina’s cities this September.
Temperatures trend during September in South Carolina
See the weather trend as well as the moving average line
September weather in South Carolina day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 30° /21° | 0.2 mm | 8 | |
| Sept. 2 |  Sunny | 30° /21° | 4.8 mm | 8 | |
| Sept. 3 | Sunny | 29° /21° | 1.9 mm | 8 | |
| Sept. 4 |  Partly cloudy | 30° /22° | 1 mm | 8 | |
| Sept. 5 | Partly cloudy | 32° /22° | 0.1 mm | 8 | |
| Sept. 6 |  Thundery outbreaks possible | 30° /22° | 0.5 mm | 8 | |
| Sept. 7 | Sunny | 29° /22° | 11.3 mm | 7 | |
| Sept. 8 | Thundery outbreaks possible | 27° /20° | 2.5 mm | 7 | |
| Sept. 9 |  Overcast | 27° /21° | 1.9 mm | 7 | |
| Sept. 10 |  Moderate or heavy rain shower | 29° /20° | 3.1 mm | 7 | |
| Sept. 11 | Patchy rain possible | 28° /21° | 1.6 mm | 7 | |
| Sept. 12 |  Fog | 28° /21° | 12.7 mm | 6 | |
| Sept. 13 | Fog | 29° /21° | 7 mm | 7 | |
| Sept. 14 | Overcast | 30° /21° | 0.5 mm | 7 | |
| Sept. 15 | Sunny | 29° /20° | 0.2 mm | 6 | |
| Sept. 16 | Overcast | 25° /18° | 7 mm | 5 | |
| Sept. 17 | Moderate rain at times | 28° /19° | 8 mm | 7 | |
| Sept. 18 | Mist | 29° /21° | 0.6 mm | 7 | |
| Sept. 19 | Partly cloudy | 28° /21° | 2.3 mm | 7 | |
| Sept. 20 | Partly cloudy | 29° /20° | 0.1 mm | 5 | |
| Sept. 21 | Overcast | 28° /21° | 0.2 mm | 6 | |
| Sept. 22 | Patchy rain possible | 28° /21° | 3.3 mm | 6 | |
| Sept. 23 | Overcast | 25° /19° | 18.8 mm | 5 | |
| Sept. 24 | Patchy rain possible | 25° /20° | 3.6 mm | 5 | |
| Sept. 25 | Overcast | 28° /20° | 3.7 mm | 7 | |
| Sept. 26 | Light rain shower | 28° /20° | 5.1 mm | 7 | |
| Sept. 27 | Patchy rain possible | 27° /20° | 17.3 mm | 6 | |
| Sept. 28 | Patchy rain possible | 27° /19° | 0 mm | 6 | |
| Sept. 29 | Sunny | 30° /18° | 0 mm | 7 | |
| Sept. 30 | Sunny | 29° /19° | 0 mm | 6.9 | |
| Next | |||||
Important Notice
Our weather forecast for South Carolina 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 South Carolina forecast closer to your planned date for the most up-to-date weather information.
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South Carolina in September - FAQ
What are the expected maximum and minimum temperatures in South Carolina during September?
During September, expect a variety of temperatures with highs around 27° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in South Carolina during September?
Significant rainfall exceeding 138.3 mm is expected in South Carolina during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in South Carolina during September?
The average wind speed in South Carolina during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in South Carolina
Explore the daily rainfall trends and prepare for South Carolinas September weather 💧
Typically, South Carolina has 17 rainy days in September with a total of 138.3 mm of rainfall.
UV exposure in South Carolina during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Counties in South Carolina
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Top locations in South Carolina
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Where is South Carolina?Get accurate weather forecasts for South Carolina, located at latitude 33.689 and longitude -78.887. Stay updated with localized weather information tailored for South Carolina.
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