Hilton Head Island

South Carolina Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in South Carolina, the United States of America in September.

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Hilton Head Island Charleston Rosenheim Mount Pleasant

Planning a trip to South Carolina, the United States of America this September? Here's what you need to know about the weather:

What to Expect in South Carolina in September

South Carolina, the United States of America is a region in the United States of America. South Carolina, the United States of America has a wide variety of climate types. During September, you can expect temperatures that range from pleasant to very warm and precipitation levels ranging from moderate to heavy.

Temperatures

During the day the temperature is pleasant in Rosenheim at 19°C (66°F) and very warm in Columbia at 31°C (88°F). As night falls, temperatures generally drop to 19°C (66°F) in Columbia and 9°C (48°F) in Rosenheim.

To learn more about the conditions in specific areas of South Carolina, the United States of America, check out the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Simpsonville with an average of 77 mm (3 in) to heavy rainfall in Pawleys Island with 185 mm (7.3 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Hilton Head Island sees close to 211 hours of sunlight, making it great for sun lovers.

Explore South Carolina by month

Pick a month to see the average temperature, rainfall and sunshine in South Carolina — and find the best time to visit. (based on Hilton Head Island)

January15°C (59°F) February16°C (61°F) March20°C (68°F) April24°C (75°F) May27°C (81°F) June31°C (88°F) This monthJuly32°C (90°F) August32°C (90°F) September29°C (84°F) October25°C (77°F) November20°C (68°F) December18°C (64°F)
Best Time to Visit South Carolina →

Best Places to Visit in South Carolina in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across South Carolina.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in South Carolina

What is the weather like in September for some of the most popular destinations in South Carolina, the United States of America?

Temperature range in South Carolina (September)

Precipitation variation in South Carolina (September)

Hilton Head Island

In September Hilton Head Island generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 21°C (70°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
29°C (84°F)
25°C (77°F)
Min temperature
24°C (75°F)
21°C (70°F)
16°C (61°F)
Monthly sun hours
251 hours
211 hours
218 hours
Monthly rainfall
199 mm (7.8 in)
123 mm (4.8 in)
78 mm (3.1 in)
Monthly rainy days
16 days
11 days
8 days
Weather conditions
unpleasant
pleasant
perfect
Climate in Hilton Head Island →

Charleston

In September Charleston generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
29°C (84°F)
25°C (77°F)
Min temperature
24°C (75°F)
22°C (72°F)
16°C (61°F)
Monthly sun hours
257 hours
221 hours
223 hours
Monthly rainfall
185 mm (7.3 in)
146 mm (5.7 in)
130 mm (5.1 in)
Monthly rainy days
17 days
11 days
8 days
Weather conditions
unpleasant
pleasant
pleasant
Climate in Charleston →

Rosenheim

In September Rosenheim generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 9°C (48°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
24°C (75°F)
19°C (66°F)
14°C (57°F)
Min temperature
13°C (55°F)
9°C (48°F)
5°C (41°F)
Monthly sun hours
204 hours
155 hours
151 hours
Monthly rainfall
158 mm (6.2 in)
133 mm (5.2 in)
99 mm (3.9 in)
Monthly rainy days
16 days
13 days
12 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Rosenheim →

Mount Pleasant

In September Mount Pleasant generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
29°C (84°F)
25°C (77°F)
Min temperature
24°C (75°F)
22°C (72°F)
16°C (61°F)
Monthly sun hours
257 hours
221 hours
223 hours
Monthly rainfall
186 mm (7.3 in)
150 mm (5.9 in)
129 mm (5.1 in)
Monthly rainy days
16 days
10 days
8 days
Weather conditions
unpleasant
pleasant
pleasant
Climate in Mount Pleasant →

Edisto Island

In September Edisto Island generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 21°C (70°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
30°C (86°F)
25°C (77°F)
Min temperature
24°C (75°F)
21°C (70°F)
16°C (61°F)
Monthly sun hours
257 hours
221 hours
223 hours
Monthly rainfall
177 mm (7 in)
126 mm (5 in)
112 mm (4.4 in)
Monthly rainy days
15 days
10 days
7 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Edisto Island →

Is your destination not in the list? Have a look at all destinations in South Carolina, in the United States of America.

Popular cities in September

Day & night temperatures, rainfall and average weather in South Carolina in September.

City Weather Day temp Night temp Rainfall
Hilton Head Island 29°C (84°F) 21°C (70°F) 123 mm (4.8 in)
Charleston 29°C (84°F) 22°C (72°F) 146 mm (5.7 in)
Rosenheim 19°C (66°F) 9°C (48°F) 133 mm (5.2 in)
Mount Pleasant 29°C (84°F) 22°C (72°F) 150 mm (5.9 in)
Edisto Island 30°C (86°F) 21°C (70°F) 126 mm (5 in)
Myrtle Beach 29°C (84°F) 20°C (68°F) 154 mm (6.1 in)

South Carolina weather in September: frequently asked questions

What is the weather like in South Carolina, the United States of America in September?

Expect pleasant weather across South Carolina, the United States of America in September. The popular destination of Hilton Head Island averages 29°C (84°F) by day and 21°C (70°F) at night during this month.

What is the average temperature in South Carolina, the United States of America in September?

Daytime temperatures in Hilton Head Island peak at roughly 29°C (84°F) in September, dropping to about 21°C (70°F) overnight.

Does South Carolina, the United States of America get a lot of rain in September?

Hilton Head Island typically receives notable rainfall in September, about 123 mm (4.8 in) on average across South Carolina, the United States of America.

Is September a Good Time to Visit South Carolina, the United States of America?

In our opinion, September is a good time to visit South Carolina, the United States of America with overall pleasant weather in Hilton Head Island. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in March, April, May, October and November offering mostly perfect weather in Hilton Head Island. On the other hand, the month of August tends to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in South Carolina.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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