Myrtle Beach weather in September is still very warm, but not as hot and humid as the summer months. Rainfall remains high, with frequent afternoon rain showers and thunderstorms, although these are typically of short duration. The weather is often better toward the end of the month.
For the most part, September brings sunny weather, with an average daily high temperature of 84°F (29°C). It is usually still perfect weather for the beach, with warm ocean temperatures ideal for swimming, watersports, kayaking and other water-based activities, but with the bonus of smaller crowds than during Myrtle Beach’s peak season.
Pack warm weather clothes for a September visit. Some evenings may be a little cooler, enough to need a light additional layer. If you need a sweater or light jacket during the day, it will more likely be for over-cold air conditioning than for the weather outdoors! Bring an umbrella for September’s rain showers, although you can generally expect dry weather outside of these brief periods.
Hurricane season runs from June through November, with hurricanes impacting the South Carolina coast most likely during the fall months. In the event of a hurricane or tropical storm, follow all local advice and be prepared to evacuate if necessary.
See also:
– Myrtle Beach festivals
– Travel options between Charleston and Myrtle Beach
– Water sports in Myrtle Beach
– Myrtle Beach weather by month: January, February, March, April, May, June, July, August, October, November, December
The average daily high temperature in Myrtle Beach in September is 84°F (29°C). The average daily low is 66°F (19°C).
Daily high temperatures in September are fairly consistent from day to day through the month, with most days’ high being in the 80s. The daily high does fall into the 70s on a few days during a typical September, and will usually likewise climb past 90°F (32°C) on a few days, more often (but not necessarily) at the beginning of the month.
It is possible for morning and evening temperatures to be quite a bit cooler than the highest temperature during the day. Such cooler mornings are an ideal time for more active outdoors activities. Be mindful of the possibility of a cool evening and night if you will be out all day, and bring a light extra layer.
The weather in Myrtle Beach in September is generally humid, and can often be exceptionally humid.
Ocean surface temperature in Myrtle Beach in September averages between 79-82°F (26-28°C), which is still an ideal temperature for swimming and watersports.
Sunshine in Myrtle Beach in September averages 8 hours per day. Rain averages 6.3 inches during the month, with rain falling on an average of 8-9 days.
September in Myrtle Beach usually offers a very good amount of sunshine, although the proportion of sunny days can vary from year to year, depending on whether any tropical storm or hurricane systems pass through during the month. It is common to enjoy extended periods of sunny weather at this time of year.
Usually, around a half to two thirds of days this month enjoy day-long sunshine and mostly clear skies, with an additional third of so of September days bringing a mix of sunny periods and cloud or rain, the latter often associated with the tail end of the afternoon rain showers and thunderstorms that affect the southeast throughout the summer.
It is not rare to experience cloudy weather in September, with the possibility of several days of mostly overcast weather arriving together, especially if there is a storm system traveling through the area. Predominantly cloudy days occur on anything from a very few days during the month, up to a quarter or so of September days.
The Atlantic hurricane season runs from June 1 through November 31, with the majority of storms that affect Myrtle Beach coming in the later months of the season, usually from August onwards.
It is quite possible for travel to the Myrtle Beach area during September to be affected by hurricanes and tropical storms. If you are booking ahead of time, it is advisable to take out insurance to cover your trip in the event you have to cancel. Make sure that it offers weather-related coverage, as not all policies do.
If the Myrtle Beach area is impacted by a hurricane or other heavy weather during your visit, seek and follow local advice and be prepared to evacuate if necessary.
Information about what to do in the event of a hurricane is available at the South Carolina Emergency Management Division, and local storm surge flooding maps and emergency contact information can be found at the Horry County Government website.
In September, the sun rises at 6:49am at the beginning of the month and at 7:09am at the end of the month. It begins to get light in the morning at 5:23am at the start of the month, and by 5:46am at the end.
The sun sets at 7:40pm at the start of the month, and at 7pm by its end. It gets completely dark by 9:06pm at the beginning of the month, and by 8:23pm at its end.
The amount of full daylight in September averages around 12 hours 20 minutes per day, plus an additional 25-30 minutes of low light at the beginning and end of the day.