We use the humidity and temperature in Charleston to calculate the Wintersun Expert Comfort level for each month. Generally, September in Charleston will have a low humidty, and will feel very comfortable. Will it be comfortable in September in Charleston? And almost equal to October, with an average of between 5 and 6 cloudy days When comparing September with the number of cloudy days in the month before and after, it is almost equal to August, with around 5 cloudy days. May is the month with the lowest number of cloudy days, with around 4 cloudy days. January is the month with the highest number of cloudy days, with an average of between 9 and 10 cloudy days. Let's also look at the cloudy or overcast days.

We have looked at the sunny days in Charleston. Water temperature for Charleston during the year. And almost equal to the water temperature from October, that is around 82☏ / 28☌. When comparing the water temperature from September with the month before and after, September has a water temperature almost equal to August, with a water temperature of around 86☏ / 30☌. February and March And have the lowest water temperature, with an average of between 64☏ / 18☌ and 66☏ / 19☌. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.Īugust has the highest water temperature, with around 86☏ / 30☌. To compare the water temperature we will use the maximum water temperature. You can expect in September, the water temperature for Charleston to be between 84☏ / 29☌ and 78☏ / 26☌. And slightly more than October, which sees around 8 days of rain - What will the water temperature be in Charleston for September When comparing September with the month before and after, this is less than August, which sees around 18 days of rain. July is the month with the most rain days with an average of between 18 and 19 days. If we look at the number of days with rain, November is the month with the least amount of rain days with an average of between 7 and 8 days. You can expect around 12 rainy days, with on average 3 inches / 75 mm of rain during the whole month. During the night, it will cool down to around 69☏ / 21☌.Ĭharleston has its share of rainy days in September. As the humidty is low, it will feel very comfortable. Historical data shows that you can expect an average temperature of around 84☏ / 29☌. Generally, September in Charleston will be really nice. 9 Weather in Charleston South Carolina in other months September weather in Charleston South CarolinaTo get a good overview of the type of weather you can expect in September in Charleston, we will look at the day and night temperature, minimum and maximum water temperature, and if September is comfortable or humid.8 Is September the most sunniest month in Charleston South Carolina?.7 Is September the rainiest month in Charleston South Carolina?.6 Does it rain all day in Charleston South Carolina in September?.5 Is September a good time to go to Charleston South Carolina?.4 Is it humid in Charleston South Carolina in September?.3 What to do in Charleston South Carolina in September.2.5 - Will it be comfortable in September in Charleston?.2.4 - Can you expect in September a lot of sunny days in Charleston.2.3 - What will the water temperature be in Charleston for September.2.2 - Can you expect rain in September in Charleston?.2.1 - What will the temperature be in Charleston in September.2 September weather in Charleston South Carolina in more detail.1 September weather in Charleston South Carolina.

Charleston mweather in msept