Horry County (Myrtle Beach)
September
Weather in Horry County for September 2025
Your guide to Horry County weather in September - trends and predictions
In general, the average temperature in Horry County at the beginning of September is 29 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 27.1 °F by the end of September.
The climate of Horry County in September is notably wet, with an average of 13 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
17
Dry days
13
Rainy days
0
Snow days
28°/21°
Temperatures
19 km/h
Avg max wind
73 %
Avg humidity
Horry County in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  29° | 3 27° | 4  29° | 5 31° | 6  29° | 7  28° |
| 8 27° | 9 27° | 10 28° | 11 28° | 12  28° | 13 28° | 14  28° |
| 15 28° | 16 24° | 17 27° | 18 27° | 19 28° | 20 28° | 21 27° |
| 22 26° | 23 24° | 24 27° | 25 29° | 26 26° | 27 26° | 28 26° |
| 29 28° | 30 28° |
You can click on date
Access Horry County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Horry County
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 | 30° /24° | 0.5 mm | 7 | |
| Sept. 2 | Moderate or heavy rain shower | 29° /23° | 14.5 mm | 6 | |
| Sept. 3 | Patchy rain possible | 27° /21° | 5.8 mm | 6 | |
| Sept. 4 | Partly cloudy | 29° /20° | 2 mm | 7 | |
| Sept. 5 | Partly cloudy | 31° /21° | 0.1 mm | 7 | |
| Sept. 6 | Thundery outbreaks possible | 29° /22° | 0.9 mm | 7 | |
| Sept. 7 | Sunny | 28° /22° | 20.9 mm | 7 | |
| Sept. 8 | Thundery outbreaks possible | 27° /21° | 3.6 mm | 6 | |
| Sept. 9 | Light rain shower | 27° /22° | 3.8 mm | 6 | |
| Sept. 10 | Moderate or heavy rain shower | 28° /21° | 3.5 mm | 7 | |
| Sept. 11 | Patchy rain possible | 28° /22° | 0.3 mm | 7 | |
| Sept. 12 | Fog | 28° /22° | 0.3 mm | 7 | |
| Sept. 13 | Fog | 28° /22° | 10.5 mm | 7 | |
| Sept. 14 | Overcast | 28° /21° | 0.8 mm | 6 | |
| Sept. 15 | Sunny | 28° /20° | 0.3 mm | 7 | |
| Sept. 16 | Sunny | 24° /19° | 14.1 mm | 6 | |
| Sept. 17 | Moderate rain at times | 27° /20° | 15.9 mm | 6 | |
| Sept. 18 | Mist | 27° /21° | 0.9 mm | 7 | |
| Sept. 19 | Partly cloudy | 28° /22° | 2.1 mm | 7 | |
| Sept. 20 | Partly cloudy | 28° /20° | 0 mm | 7 | |
| Sept. 21 | Overcast | 27° /22° | 0.1 mm | 7 | |
| Sept. 22 | Patchy rain possible | 26° /21° | 0.2 mm | 7 | |
| Sept. 23 | Light rain shower | 24° /19° | 37.6 mm | 6 | |
| Sept. 24 | Patchy rain possible | 27° /21° | 0.1 mm | 6 | |
| Sept. 25 | Patchy rain possible | 29° /22° | 0 mm | 7 | |
| Sept. 26 | Light rain shower | 26° /22° | 7.8 mm | 6 | |
| Sept. 27 | Patchy rain possible | 26° /22° | 32.2 mm | 6 | |
| Sept. 28 | Patchy rain possible | 26° /21° | 0 mm | 6 | |
| Sept. 29 | Overcast | 28° /21° | 4.4 mm | 6 | |
| Sept. 30 | Patchy rain possible | 28° /21° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Horry 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 Horry County forecast closer to your planned date for the most up-to-date weather information.
Horry County in September - FAQ
What are the expected maximum and minimum temperatures in Horry County 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 Horry County during September?
Significant rainfall exceeding 163.7 mm is expected in Horry County during September, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Horry County during September?
The average wind speed in Horry County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Horry County
Explore the daily rainfall trends and prepare for Horry Countys September weather 💧
UV exposure in Horry County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Horry County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Horry County?Get accurate weather forecasts for Horry County, located at latitude 33.689 and longitude -78.887. Stay updated with localized weather information tailored for Horry County.
Found a mistake?
We appreciate your attention to details. Tell us here.