Myrtle Beach (SC)
September
Weather in Myrtle Beach, South Carolina for September 2026
Your guide to Myrtle Beach weather in September - trends and predictions
So far, September 2026 in Myrtle Beach shows a warmer trend than usual by 2.1 °F.
Expect cooler weather in the next days in Myrtle Beach with the forecast suggesting a temperature of 27.5 °F, lower than the historical average.
In general, the average temperature in Myrtle Beach at the beginning of September is 30 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 28.3 °F by the end of September.
Myrtle Beach 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 🌧️
More
13
Dry days
17
Rainy days
0
Snow days
27°/21°
Temperatures
20 km/h
Avg max wind
77 %
Avg humidity
Myrtle Beach Weather September
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Temperatures trend during September in Myrtle Beach
See the weather trend as well as the moving average line
September weather in Myrtle Beach 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° /23° | 6.8 mm | 6 | |
| Sept. 27 | Sunny | 28° /13° | 0 mm | 7.2 | |
| Sept. 28 | Sunny | 29° /15° | 0 mm | 7 | |
| Sept. 29 | Sunny | 30° /17° | 0 mm | 7 | |
| Sept. 30 | Sunny | 30° /20° | 0 mm | 7.1 | |
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Important Notice
Our weather forecast for Myrtle Beach 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 Myrtle Beach forecast closer to your planned date for the most up-to-date weather information.
Change Month
Myrtle Beach in September - FAQ
What are the expected maximum and minimum temperatures in Myrtle Beach 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 Myrtle Beach during September?
Significant rainfall exceeding 138.3 mm is expected in Myrtle Beach during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Myrtle Beach during September?
The average wind speed in Myrtle Beach during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Myrtle Beach
Explore the daily rainfall trends and prepare for Myrtle Beachs September weather 💧
Typically, Myrtle Beach has 17 rainy days in September with a total of 138.3 mm of rainfall.
UV exposure in Myrtle Beach during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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