17.09
thu
thu
Day
84°F
W 9 mph
Precip.
2%
2%
Night
77°F
W 4 mph
Precip.
17%
17%
18.09
fri
fri
Day
86°F
W 4 mph
Precip.
2%
2%
Night
75°F
N 4 mph
Precip.
8%
8%
19.09
sat
sat
Day
86°F
W 7 mph
Precip.
2%
2%
Night
75°F
W 5 mph
Precip.
23%
23%
20.09
sun
sun
Day
86°F
NW 6 mph
Precip.
11%
11%
Night
77°F
NW 4 mph
Precip.
27%
27%
21.09
mon
mon
Day
77°F
W 2 mph
Precip.
34%
34%
Night
77°F
NW 5 mph
Precip.
52%
52%
22.09
tue
tue
Day
84°F
W 6 mph
Precip.
40%
40%
Night
77°F
NW 5 mph
Precip.
28%
28%
23.09
wed
wed
Day
86°F
W 8 mph
Precip.
14%
14%
Night
77°F
W 5 mph
Precip.
11%
11%
sea water
temperature
temperature
| Kiawah Island |
monthly
weather
weather
| Kiawah Island |
current
weather
weather
| Kiawah Island |
14 days
forecast
forecast
| Kiawah Island |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 84.0°F. The highest and lowest sea temperatures during the month were 85.6°F and 82.4°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 72.5°F. The highest and lowest sea temperatures during the month were 79.5°F and 66.0°F.
Air temperature in Kiawah Island, °F
Precipitation total in Kiawah Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Kiawah Island
Kiawah Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Kiawah Island
Local time: 03:51
September 17, thursday
0600
72°F
SW
6 mph
6 mph
0900
75°F
SW
7 mph
7 mph
1200
84°F
W
9 mph
9 mph
1500
84°F
W
11 mph
11 mph
1800
81°F
W
9 mph
9 mph
2100
75°F
W
6 mph
6 mph
September 18, friday
0000
77°F
W
4 mph
4 mph
0300
73°F
W
1 mph
1 mph
