Hilton Head Island

South Carolina Weather in August

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

Are you planning a trip a to South Carolina, the United States of America in August and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in South Carolina in August

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 August, you can expect temperatures that range from warm to very warm and precipitation levels ranging from moderate to heavy. August is a summer month.

Temperatures

During the day the temperature is warm in Rosenheim at 24°C (75°F) and very warm in Columbia at 33°C (91°F). As night falls, temperatures generally drop to 22°C (72°F) in Columbia and 13°C (55°F) in Rosenheim. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

For a closer look at conditions across South Carolina, the United States of America, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Rock Hill with an average of 90 mm (3.5 in) to heavy rainfall in Hilton Head Island with 199 mm (7.8 in). Based on climate data from the last 30 years, Hilton Head Island receives the most rainfall during this month of the year.

Average sunshine

Several destinations enjoy plenty of sunshine this month. Hilton Head Island sees close to 251 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)

Best Places to Visit in South Carolina in August

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

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 August for some of the most popular destinations in South Carolina, the United States of America?

Temperature range in South Carolina (August)

Precipitation variation in South Carolina (August)

Hilton Head Island

In August Hilton Head Island generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

July
August
September
Max temperature
32°C (90°F)
32°C (90°F)
29°C (84°F)
Min temperature
24°C (75°F)
24°C (75°F)
21°C (70°F)
Monthly sun hours
279 hours
251 hours
211 hours
Monthly rainfall
121 mm (4.8 in)
199 mm (7.8 in)
123 mm (4.8 in)
Monthly rainy days
13 days
16 days
11 days
Weather conditions

Charleston

In August Charleston generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

July
August
September
Max temperature
32°C (90°F)
31°C (88°F)
29°C (84°F)
Min temperature
24°C (75°F)
24°C (75°F)
22°C (72°F)
Monthly sun hours
288 hours
257 hours
221 hours
Monthly rainfall
129 mm (5.1 in)
185 mm (7.3 in)
146 mm (5.7 in)
Monthly rainy days
15 days
17 days
11 days
Weather conditions

Rosenheim

In August Rosenheim generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 13°C (55°F) and high monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
24°C (75°F)
24°C (75°F)
19°C (66°F)
Min temperature
13°C (55°F)
13°C (55°F)
9°C (48°F)
Monthly sun hours
217 hours
204 hours
155 hours
Monthly rainfall
168 mm (6.6 in)
158 mm (6.2 in)
133 mm (5.2 in)
Monthly rainy days
17 days
16 days
13 days
Weather conditions

Mount Pleasant

In August Mount Pleasant generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

July
August
September
Max temperature
32°C (90°F)
32°C (90°F)
29°C (84°F)
Min temperature
24°C (75°F)
24°C (75°F)
22°C (72°F)
Monthly sun hours
288 hours
257 hours
221 hours
Monthly rainfall
131 mm (5.2 in)
186 mm (7.3 in)
150 mm (5.9 in)
Monthly rainy days
13 days
16 days
10 days
Weather conditions

Edisto Island

In August Edisto Island generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
33°C (91°F)
32°C (90°F)
30°C (86°F)
Min temperature
24°C (75°F)
24°C (75°F)
21°C (70°F)
Monthly sun hours
288 hours
257 hours
221 hours
Monthly rainfall
145 mm (5.7 in)
177 mm (7 in)
126 mm (5 in)
Monthly rainy days
13 days
15 days
10 days
Weather conditions

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 August

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

City Weather Day temp Night temp Rainfall
Hilton Head Island 32°C (90°F) 24°C (75°F) 199 mm (7.8 in)
Charleston 31°C (88°F) 24°C (75°F) 185 mm (7.3 in)
Rosenheim 24°C (75°F) 13°C (55°F) 158 mm (6.2 in)
Mount Pleasant 32°C (90°F) 24°C (75°F) 186 mm (7.3 in)
Edisto Island 32°C (90°F) 24°C (75°F) 177 mm (7 in)
Myrtle Beach 31°C (88°F) 23°C (73°F) 147 mm (5.8 in)

South Carolina weather in August: frequently asked questions

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

Expect poor weather across South Carolina, the United States of America in August. The popular destination of Hilton Head Island averages 32°C (90°F) by day and 24°C (75°F) at night during this summer month.

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

Daytime temperatures in Hilton Head Island peak at roughly 32°C (90°F) in August, dropping to about 24°C (75°F) overnight.

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

Rainfall in South Carolina, the United States of America peaks during August. Hilton Head Island averages roughly 199 mm (7.8 in), so frequent and sometimes heavy showers are the norm.

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

In our view, August might not be the best time to travel to South Carolina, the United States of America with often unpleasant weather in Hilton Head Island.

On average, the best time to visit South Carolina, the United States of America is in March, April, May, October and November with generally perfect weather in Hilton Head Island. In contrast, 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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