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Sea Temperature in Charleston in September
Complete information on the sea temperature range in the Atlantic Ocean in Charleston in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Charleston. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Charleston in September
24°C
MINIMUN
27°C
AVERAGE
30°C
MAXIMUM
Historical Data of Water Temperature in September in Charleston
Water Temperature Chart for Atlantic Ocean in Charleston in September
Sea Temperature Table in Charleston in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 29°C | 29°C | 26°C | 28.3°C |
| Sep 2 | 29°C | 28°C | 29°C | 28.8°C |
| Sep 3 | 29°C | 28°C | 27°C | 28.3°C |
| Sep 4 | 28°C | 30°C | 29°C | 29.0°C |
| Sep 5 | 28°C | 29°C | 29°C | 28.3°C |
| Sep 6 | 28°C | 30°C | 27°C | 28.0°C |
| Sep 7 | 28°C | 29°C | 27°C | 27.8°C |
| Sep 8 | 28°C | 29°C | 28°C | 28.0°C |
| Sep 9 | 28°C | 28°C | 28°C | 27.5°C |
| Sep 10 | 28°C | 29°C | 29°C | 28.0°C |
| Sep 11 | 28°C | 28°C | 29°C | 27.8°C |
| Sep 12 | 28°C | 29°C | 26°C | 27.0°C |
| Sep 13 | 28°C | 29°C | 28°C | 27.5°C |
| Sep 14 | 28°C | 28°C | 26°C | 27.0°C |
| Sep 15 | 28°C | 29°C | 27°C | 27.5°C |
| Sep 16 | 28°C | 29°C | 28°C | 27.8°C |
| Sep 17 | 28°C | 29°C | 28°C | 27.8°C |
| Sep 18 | 28°C | 29°C | 26°C | 27.0°C |
| Sep 19 | 28°C | 28°C | 29°C | 27.5°C |
| Sep 20 | 28°C | 27°C | 27°C | 26.8°C |
| Sep 21 | 27°C | 27°C | 26°C | 26.3°C |
| Sep 22 | 27°C | 27°C | 27°C | 26.5°C |
| Sep 23 | 27°C | 26°C | 28°C | 26.8°C |
| Sep 24 | 27°C | 26°C | 28°C | 26.5°C |
| Sep 25 | 26°C | 26°C | 29°C | 26.5°C |
| Sep 26 | 26°C | 26°C | 26°C | 25.8°C |
| Sep 27 | 26°C | 26°C | 29°C | 26.5°C |
| Sep 28 | 26°C | 26°C | 26°C | 25.8°C |
| Sep 29 | 27°C | 26°C | 29°C | 26.8°C |
Charleston Climate and Swimming Opportunities in September
29°C
Average Day Air Temperature
21°C
Average Night Air Temperature
144 mm
Precipitation Amount per Month
10 days
Number of Rainy Days
12 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
17 km/h
Average Wind Speed
78%
Average
humidity
Charleston lies within the South Carolina in United States. The average daytime temperature in Charleston in September is 84°F (29°C), while the nighttime average is 69°F (21°C). There are typically 10 rainy days during the month, with a total precipitation of 5.7 inches (144 mm). The daylight duration in September in Charleston is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 11 mph (17 km/h), and the humidity level is around 78%.
The water temperature in Charleston in September ranges from 77°F to 84°F (25°C to 29°C). At the beginning of the month, the average temperature is around 82°F (28°C), shifting to 81°F (27°C) by mid-September and reaching 81°F (27°C) in the last ten days. Overall, the average sea temperature in Charleston for September is 81°F (27°C). The water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Charleston
What is the sea temperature in Charleston in September?
The water temperature in the Atlantic Ocean in Charleston in September ranges from 77°F to 84°F (25°C to 29°C).
Is it possible to swim in the Atlantic Ocean in Charleston in September?
The average sea temperature in Charleston in September is 81°F (27°C), and the air temperature is 84°F (29°C), so the water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.