Measurements:
°C
°F
Kiawah Island
84°F
W 5 mph
Feels like: 84°F
Precip: 0%
World Resorts USA Kiawah Island Weather

Kiawah Island Sea Water Temperature

Current Sea Water Temperature:
+80.6°F
Maximum Sea Water Temperature in June: 88.8°F
Minimum Sea Water Temperature in June: 72.4°F
Average water temperature in June: 83.2°F

Sea Water Temperature for the Last 10 Days:

June 04 80.6°F May 29 83.4°F
June 03 81.8°F May 28 83.4°F
June 01 83.6°F May 27 83.6°F
May 31 85.6°F May 26 82.0°F
May 30 84.2°F May 25 80.8°F

When is the Warmest Sea for Kiawah Island?

According to our data for the last three years for Kiawah Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Kiawah Island was 87.9°F. The maximum and minimum values were 86.0°F and 91.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Kiawah Island was 88.7°F. The maximum and minimum values were 86.8°F and 91.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Kiawah Island was 82.5°F. The maximum and minimum values were 79.4°F and 84.8°F respectively.

Best Time to Visit Kiawah Island
The most sunny months:
October 16 days
April 16 days
January 14 days
The most warm months:
July 91.7 °F
August 89.8 °F
June 88.4 °F
Warmest sea temperature:
August 88.2 °F
July 88.2 °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 4 days
The most windy months:
March 9 mph
February 9 mph
January 9 mph

Kiawah Island on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Kiawah Island
Local time: 12:54
04 jun, thursday
1500 84°F
NW
11 mph
1800 84°F
NW
9 mph
2100 80°F
N
8 mph
05 jun, friday
0000 76°F
N
6 mph
0300 74°F
N
3 mph
0600 72°F
SE
5 mph
0900 76°F
SE
5 mph
1200 82°F
NW
5 mph