Hilton Head Island

South Carolina Weather in July

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

Thinking about venturing to South Carolina, the United States of America this July and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in South Carolina in July

South Carolina, the United States of America is a region in the United States of America. The weather in South Carolina in July can be quite varied, with temperatures that range from warm to very warm and precipitation levels ranging from moderate to heavy. July is a summer month.

Temperatures

During the day temperatures vary from warm in Rosenheim at 24°C (75°F) to very warm in Columbia at 34°C (93°F). At night it cools down to 22°C (72°F) in Columbia and 13°C (55°F) in Rosenheim. On average, July is the warmest month of the year in South Carolina, the United States of America. So be prepared and pack summer clothes.

For specific regional insights in South Carolina, the United States of America, refer to the map provided below.

Precipitation

In July, precipitation varies across different areas. From moderate rainfall in Union with an average of 89 mm (3.5 in) to heavy rainfall in Georgetown with 180 mm (7.1 in).

Average sunshine

July brings good sunshine to many areas. Hilton Head Island sees around 279 hours of sunlight, great for visitors looking for bright days.

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 July

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

Temperature range in South Carolina (July)

Precipitation variation in South Carolina (July)

Hilton Head Island

In July 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 high monthly rainfall. So on average the conditions are good that month.

June
July
August
Max temperature
31°C (88°F)
32°C (90°F)
32°C (90°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
271 hours
279 hours
251 hours
Monthly rainfall
115 mm (4.5 in)
121 mm (4.8 in)
199 mm (7.8 in)
Monthly rainy days
12 days
13 days
16 days
Weather conditions

Charleston

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

June
July
August
Max temperature
31°C (88°F)
32°C (90°F)
31°C (88°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
280 hours
288 hours
257 hours
Monthly rainfall
150 mm (5.9 in)
129 mm (5.1 in)
185 mm (7.3 in)
Monthly rainy days
13 days
15 days
17 days
Weather conditions

Rosenheim

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

June
July
August
Max temperature
22°C (72°F)
24°C (75°F)
24°C (75°F)
Min temperature
12°C (54°F)
13°C (55°F)
13°C (55°F)
Monthly sun hours
176 hours
217 hours
204 hours
Monthly rainfall
176 mm (6.9 in)
168 mm (6.6 in)
158 mm (6.2 in)
Monthly rainy days
18 days
17 days
16 days
Weather conditions

Mount Pleasant

In July 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 high monthly rainfall. So on average the conditions are good that month.

June
July
August
Max temperature
31°C (88°F)
32°C (90°F)
32°C (90°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
280 hours
288 hours
257 hours
Monthly rainfall
124 mm (4.9 in)
131 mm (5.2 in)
186 mm (7.3 in)
Monthly rainy days
12 days
13 days
16 days
Weather conditions

Edisto Island

In July Edisto Island generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are good that month.

June
July
August
Max temperature
32°C (90°F)
33°C (91°F)
32°C (90°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
280 hours
288 hours
257 hours
Monthly rainfall
103 mm (4.1 in)
145 mm (5.7 in)
177 mm (7 in)
Monthly rainy days
11 days
13 days
15 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.

In our records: the United States of America July extremes

Notable July records observed across cities in the United States of America in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in the United States of America reached 51°C (124°F) in Palm Desert on July 28, 1995.

Popular cities in July

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

City Weather Day temp Night temp Rainfall
Hilton Head Island 32°C (90°F) 24°C (75°F) 121 mm (4.8 in)
Charleston 32°C (90°F) 24°C (75°F) 129 mm (5.1 in)
Rosenheim 24°C (75°F) 13°C (55°F) 168 mm (6.6 in)
Mount Pleasant 32°C (90°F) 24°C (75°F) 131 mm (5.2 in)
Edisto Island 33°C (91°F) 24°C (75°F) 145 mm (5.7 in)
Myrtle Beach 31°C (88°F) 23°C (73°F) 135 mm (5.3 in)

South Carolina weather in July: frequently asked questions

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

July in South Carolina, the United States of America brings mixed weather. In Hilton Head Island, daytime temperatures are typically around 32°C (90°F) and nighttime lows hover near 24°C (75°F).

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

Hilton Head Island averages a daytime maximum of 32°C (90°F) in July, with overnight lows close to 24°C (75°F).

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

Yes, July tends to be a wetter month in South Carolina, the United States of America. Average rainfall in Hilton Head Island sits around 121 mm (4.8 in).

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

Given the typically good weather conditions in Hilton Head Island, July might be a good time to visit South Carolina, the United States of America.

Generally speaking, the best visiting conditions can be found in March, April, May, October and November offering mostly excellent weather in Hilton Head Island. In contrast, August tends to have less favorable 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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