Measurements:
°C
°F
Kiawah Island
58°F
N 5 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Kiawah Island Weather August Weather in Kiawah Island

Kiawah Island Weather: August

Average Day Temperature: 89.8°F
Average Night Temperature: 80.2°F
Sea Water Temperature: 88.3°F
Number of Sunny Days: 6 days
Sunshine Hours: 12.9 - 13.7 hours
Number of Rainy Days: 5 days
Precipitation Totals: 2.2 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 101°F. The lowest night temperature was 77°F. The average values for day and night temperatures during August were 87.8°F и 81.2°F respectivly.

Kiawah Island Water Sea Temperature in August, °F

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.

Sunny, Cloudy and Gloomy days

Most of the days in August are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Kiawah Island is 2.2 in. It makes august the most rainy month of the year.

Wind Speed in August, mph

The average wind speed in August is 7.1 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Kiawah Island in August is 6.6 hours.

Best Time to Visit Kiawah Island
The most sunny months:
October 16 days
April 15 days
November 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 56.8 °F
December 60.5 °F
February 61.8 °F
The most rainy months:
July 5 days
August 5 days
June 4 days
The most windy months:
March 9 mph
December 8 mph
January 8 mph

Kiawah Island on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Kiawah Island
Local time: 01:41
05 dec, friday
0300 58°F
N
5 mph
0600 54°F
SW
5 mph
0900 56°F
SW
9 mph
1200 54°F
SW
7 mph
1500 52°F
S
9 mph
1800 50°F
SE
7 mph
2100 48°F
SE
4 mph
06 dec, saturday
0000 48°F
SE
6 mph