Measurements:
°C
°F
CURRENT WEATHER
11:15
Kiawah Island
88°F
W 17 mph
Feels like: 94°F
Precip: 28%
World Resorts USA Kiawah Island Weather

7 Day Weather Forecast

09.15
tue
DAY
88°F
W 17 mph
precip
28%
NIGHT
80°F
W 9 mph
precip
7%
09.16
wed
DAY
88°F
W 11 mph
precip
5%
NIGHT
78°F
W 7 mph
precip
4%
09.17
thu
DAY
88°F
W 8 mph
precip
10%
NIGHT
80°F
NW 4 mph
precip
10%
09.18
fri
DAY
92°F
W 3 mph
precip
1%
NIGHT
78°F
N 5 mph
precip
22%
09.19
sat
DAY
90°F
NW 8 mph
precip
6%
NIGHT
80°F
NW 4 mph
precip
17%
09.20
sun
DAY
88°F
NW 7 mph
precip
12%
NIGHT
80°F
NW 4 mph
precip
13%
09.21
mon
DAY
90°F
NW 7 mph
precip
13%
NIGHT
80°F
NW 7 mph
precip
25%

Kiawah Island Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Kiawah Island was 28.9°F. The maximum and minimum values were 28.0°F and 29.8°F respectively.

Kiawah Island on the Weather Map

Best Time to Visit Kiawah Island
The most sunny months:
October 16 days
April 16 days
January 14 days
The most warm months:
July 92.0 °F
August 90.1 °F
June 88.4 °F
Warmest sea temperature:
July 88.5 °F
August 88.4 °F
September 84.5 °F
The most cold months:
January 56.3 °F
December 60.0 °F
February 60.7 °F
The most rainy months:
July 5 days
August 5 days
June 3 days
The most windy months:
March 9 mph
February 9 mph
January 9 mph
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