Search for cities, countries, lakes and rivers
Sea Temperature in Sullivan's Island in September
Complete information on the sea temperature range in the Atlantic Ocean in Sullivan's Island in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Sullivan's Island. 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 Sullivan's Island in September
75°F
MINIMUN
81°F
AVERAGE
86°F
MAXIMUM
Historical Data of Water Temperature in September in Sullivan's Island
Water Temperature Chart for Atlantic Ocean in Sullivan's Island in September
Sea Temperature Table in Sullivan's Island in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 84°C | 79°C | 79°C | 81°C |
| Sep 2 | 84°C | 79°C | 84°C | 82°C |
| Sep 3 | 84°C | 81°C | 81°C | 82°C |
| Sep 4 | 82°C | 82°C | 84°C | 83°C |
| Sep 5 | 82°C | 79°C | 84°C | 82°C |
| Sep 6 | 82°C | 81°C | 81°C | 81°C |
| Sep 7 | 82°C | 79°C | 81°C | 81°C |
| Sep 8 | 82°C | 81°C | 82°C | 82°C |
| Sep 9 | 82°C | 84°C | 82°C | 82°C |
| Sep 10 | 82°C | 81°C | 84°C | 82°C |
| Sep 11 | 82°C | 84°C | 84°C | 82°C |
| Sep 12 | 82°C | 79°C | 79°C | 79°C |
| Sep 13 | 81°C | 81°C | 82°C | 80°C |
| Sep 14 | 82°C | 79°C | 79°C | 80°C |
| Sep 15 | 82°C | 79°C | 81°C | 80°C |
| Sep 16 | 82°C | 81°C | 82°C | 81°C |
| Sep 17 | 82°C | 82°C | 82°C | 82°C |
| Sep 18 | 82°C | 81°C | 79°C | 80°C |
| Sep 19 | 82°C | 84°C | 84°C | 82°C |
| Sep 20 | 82°C | 81°C | 81°C | 81°C |
| Sep 21 | 81°C | 82°C | 79°C | 80°C |
| Sep 22 | 81°C | 84°C | 81°C | 81°C |
| Sep 23 | 81°C | 79°C | 82°C | 80°C |
| Sep 24 | 82°C | 82°C | 82°C | 81°C |
| Sep 25 | 79°C | 79°C | 84°C | 80°C |
| Sep 26 | 81°C | 81°C | 79°C | 79°C |
| Sep 27 | 79°C | 79°C | 84°C | 80°C |
| Sep 28 | 81°C | 79°C | 79°C | 79°C |
| Sep 29 | 79°C | 82°C | 84°C | 81°C |
Sullivan's Island Climate and Swimming Opportunities in September
84°F
Average Day Air Temperature
70°F
Average Night Air Temperature
6 in
Precipitation Amount per Month
10 days
Number of Rainy Days
12 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
10 mph
Average Wind Speed
78%
Average
humidity
Sullivan's Island lies within the South Carolina in United States. The average daytime temperature in Sullivan's Island 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 Sullivan's Island 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 Sullivan's Island in September ranges from 79°F to 82°F (26°C to 28°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 Sullivan's Island 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 Sullivan's Island
What is the sea temperature in Sullivan's Island in September?
The water temperature in the Atlantic Ocean in Sullivan's Island in September ranges from 79°F to 82°F (26°C to 28°C).
Is it possible to swim in the Atlantic Ocean in Sullivan's Island in September?
The average sea temperature in Sullivan's Island 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.