World Resorts USA Kiawah Island Weather

Kiawah Island weather in May

Weather in Kiawah Island: May

Average day temperature: 78.3°F
Average night temperature: 68.1°F
Sea water temperature: 74.3°F
Number of sunny days: 13 days
Day length: 13.5 - 14.1 hours
Number of rainy days: 2 days
Precipitation totals: 1.0 in.

Air temperature in May, °F

Show year:
2026
2025
2024

The highest day temperature during May of 2026 was 83°F. At the same time the lowest night temperature was 52°F. Daily and nightly averages during May were 75.5°F and 69.5°F.

Sea water temperature in Kiawah Island in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 74.1°F. The highest and lowest sea temperatures during the month were 82.0°F and 68.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are sunny but cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Kiawah Island in May is 1.0 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 8.2 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.7.

Best time for vacation in Kiawah Island

Sunniest months:
October 16 days
April 16 days
January 14 days
Warmest months:
July 87.5 °F
August 85.8 °F
June 84.6 °F
Warmest sea temp:
August 84.4 °F
July 84.4 °F
September 81.1 °F
Coldest months:
January 55.7 °F
December 59.0 °F
February 59.6 °F
Rainiest months:
July 5 days
August 5 days
June 4 days
Windiest months:
March 9.0 mph
February 8.7 mph
January 8.7 mph

Kiawah Island on a weather map

Kiawah Island
+86°F
NW 9 mph
Feels like: +95°F
Precip.: 1%
Places in USA:
Name
°F
+77°F
+77°F
+100°F
+79°F
+88°F
+86°F
+72°F
+79°F
+70°F
+64°F
+68°F
+95°F
+102°F
+88°F
+77°F
24 Hours Forecast
Kiawah Island
Local time: 15:33
June 08, monday
1800
82°F
N
9 mph
2100
81°F
N
8 mph
June 09, tuesday
0000
79°F
N
6 mph
0300
77°F
N
2 mph
0600
77°F
NW
4 mph
0900
81°F
NW
5 mph
1200
82°F
NW
6 mph
1500
82°F
NW
9 mph
Units of measurement: °C / °F