Charleston weather in September 2024

Expect 28°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Charleston in September. Check more long-term weather averages for Charleston in September before you book your next holiday to South Carolina in 2024/2025.

28
28°C max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
21
21°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
121
121 mm of monthly rainfall
8
8 (Very High) UV index
27
27°C sea temperature

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The September weather guide for South Carolina (Charleston) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about the USA

How hot is it in Charleston in September?

Daytime temperatures usually reach 28°C in Charleston in September with moderate heat and humidity, falling to 21°C at night.

How sunny is it in Charleston in September?

There are normally 7 hours of bright sunshine each day in Charleston in September - that's 59% of daylight hours.

How warm is the sea around Charleston in September?

The average sea temperature around Charleston in September is 27°C.

Does it rain in Charleston in September?

There are usually 9 days with some rain in Charleston in September and the average monthly rainfall is 121mm.

What is the chance of a hurricane in Charleston in September?

On average 1.3 days in September in Charleston are likely to be affected by the passage of one or more tropical storms.

Charleston September sunrise & sunset times

Browse the sunrise and sunset times for Charleston in September 2024. Select a month to view Charleston sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st September 2024	06:55	19:44
Sunday, 15th September 2024	07:04	19:25
Monday, 30th September 2024	07:14	19:05

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South Carolina - quick facts
Flight time^✝	11.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Beaches Culture
Tourist info	South Carolina Department of Parks, Recreation & Tourism