South Carolina (Charleston)
September
Weather in South Carolina for September 2025
Your guide to South Carolina weather in September - trends and predictions
In general, the average temperature in South Carolina at the beginning of September is 27 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 29.6 °F by the end of September.
The climate of South Carolina in September is notably wet, with an average of 14 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
16
Dry days
14
Rainy days
0
Snow days
28°/21°
Temperatures
20 km/h
Avg max wind
73 %
Avg humidity
South Carolina in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2 31° | 3 26° | 4 27° | 5 27° | 6 25° | 7  22° |
| 8 21° | 9 24° | 10 27° | 11 27° | 12  28° | 13 30° | 14  28° |
| 15  29° | 16 27° | 17 29° | 18 29° | 19  31° | 20 29° | 21 28° |
| 22 28° | 23 28° | 24  32° | 25 32° | 26 29° | 27 28° | 28 28° |
| 29 29° | 30 29° |
You can click on date
Access South Carolina weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in South Carolina
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Patchy rain possible | 31° /25° | 0.2 mm | 7 | |
| Sept. 2 | Patchy rain possible | 31° /25° | 1.3 mm | 7 | |
| Sept. 3 | Light rain shower | 26° /24° | 2 mm | 6 | |
| Sept. 4 | Light rain shower | 27° /21° | 2.5 mm | 6 | |
| Sept. 5 | Patchy rain possible | 27° /22° | 1.5 mm | 6 | |
| Sept. 6 | Light rain shower | 25° /22° | 13.6 mm | 6 | |
| Sept. 7 | Heavy rain | 22° /21° | 47.5 mm | 5 | |
| Sept. 8 | Light rain shower | 21° /20° | 23.3 mm | 5 | |
| Sept. 9 | Light rain shower | 24° /21° | 6.9 mm | 5 | |
| Sept. 10 | Patchy rain possible | 27° /20° | 0.2 mm | 6 | |
| Sept. 11 | Patchy rain possible | 27° /23° | 0.1 mm | 6 | |
| Sept. 12 | Mist | 28° /24° | 1 mm | 7 | |
| Sept. 13 | Mist | 30° /23° | 3.4 mm | 7 | |
| Sept. 14 | Overcast | 28° /21° | 1 mm | 6 | |
| Sept. 15 | Partly cloudy | 29° /22° | 0.7 mm | 7 | |
| Sept. 16 | Partly cloudy | 27° /20° | 0 mm | 7 | |
| Sept. 17 | Torrential rain shower | 29° /20° | 29.5 mm | 7 | |
| Sept. 18 | Overcast | 29° /21° | 0 mm | 6 | |
| Sept. 19 | Cloudy | 31° /21° | 5.3 mm | 7 | |
| Sept. 20 | Overcast | 29° /21° | 0 mm | 7 | |
| Sept. 21 | Light rain shower | 28° /22° | 0.9 mm | 6 | |
| Sept. 22 | Overcast | 28° /21° | 0 mm | 7 | |
| Sept. 23 | Overcast | 28° /19° | 0.5 mm | 7 | |
| Sept. 24 | Sunny | 32° /22° | 0 mm | 8 | |
| Sept. 25 | Sunny | 32° /23° | 0 mm | 7 | |
| Sept. 26 | Torrential rain shower | 29° /23° | 24.7 mm | 6 | |
| Sept. 27 | Patchy rain possible | 28° /23° | 44.7 mm | 7 | |
| Sept. 28 | Patchy rain possible | 28° /21° | 0 mm | 7 | |
| Sept. 29 | Overcast | 29° /21° | 3.5 mm | 7 | |
| Sept. 30 | Overcast | 29° /22° | 0 mm | 7 | |
| 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.
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 28° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in South Carolina during September?
Significant rainfall exceeding 201 mm is expected in South Carolina during September, occurring over more than 14 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 💧
UV exposure in South Carolina during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in South Carolina
Select a province for an accurate weather forecast
Top locations in South Carolina
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is South Carolina?Get accurate weather forecasts for South Carolina, located at latitude 32.777 and longitude -79.931. Stay updated with localized weather information tailored for South Carolina.
Found a mistake?
We appreciate your attention to details. Tell us here.