South Carolina weather in September 2025
South Carolina weather in September 2025
Day
29 °C
Night
20 °C
Sea
27 °C
Precipitation
143 mm
in month
Rainy days
9 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
78 %
Day
29 °C
Night
20 °C
Sea
27 °C
Precipitation
143 mm
in month
Rainy days
9 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
78 %
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Weather overview and FAQs
Weather overview
In South Carolina in September, the average air temperature ranges from 29 °C (84 °F) during the day to 20 °C (67 °F) at night. There are 9 days of rain on average, where the rainfall is 143 mm (5.62 in).
Are there good conditions to visit in September in South Carolina?
September is one of the best months to visit South Carolina. The daily temperatures in this month reach pleasant 29 °C (84 °F). The temperature of the sea will be perfect at 27 °C (81 °F). At night, temperatures hover around a pleasant 20 °C (67 °F). There are only 9 days of rain in the whole month, so you can leave your umbrella at home.
What is the sea temperature in September in South Carolina?
The temperature of the sea in South Carolina in September is 27 °C (81 °F). Seems like an ideal temperature for swimming, you can stay in the sea for a long time and enjoy it as well.
What temperature can I expect during the day in September in South Carolina?
In South Carolina in September, the average daily temperatures will be 29 °C (84 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
What is the average number of rainy days in South Carolina in September?
In September in South Carolina, we can expect 9 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.2 days of the week, or in general - 32 % days.
What is the air temperature in September in South Carolina at night?
The average night temperature in South Carolina in September is 20 °C (67 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.
What is the rainfall intensity in September in South Carolina?
There is precipitation of 143 mm (5.62 in) in September in South Carolina, which means 5 mm (0.19 in) rainfall per day on average.
How windy is South Carolina in September?
In September in South Carolina, there will be an average wind scale of 4.
How long is the day (from dawn till dusk) in South Carolina in September?
The length of daylight in South Carolina in September is 12 hours.
How many sunny hours can I expect in September in South Carolina?
There is an average length of sunshine of 7 hours per day in South Carolina in September.
Is it hot in South Carolina in September?
In South Carolina in September, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
Is the sea in South Carolina warmer in September than in October?
Yes, in September in South Carolina the sea temperature is higher by 3 °C (38 °F) compared to October.
How humid is South Carolina in September?
In September in South Carolina, expect humidity around 78 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
Is the weather in South Carolina warmer in September than in August?
No, in September in South Carolina the temperature is not higher than in August.
Is South Carolina rainier in September than in October?
Yes, South Carolina is a rainier September than in October.
What is the temperature trend in September in South Carolina?
During September in South Carolina, the day temperatures are decreasing - from 30 °C (86 °F) at the beginning of the month to 27 °C (80 °F) at the end of the month.