Measurements:
°C
°F
Wilmington Island
62°F
NW 9 mph
Feels like: 62°F
Precip: 0%
World Resorts USA Wilmington Island Weather

Wilmington Island Sea Water Temperature

Current Sea Water Temperature:
+67.4°F
Maximum Sea Water Temperature in April: 77.4°F
Minimum Sea Water Temperature in April: 63.6°F
Average water temperature in April: 70.2°F

Sea Water Temperature for the Last 10 Days:

April 03 67.4°F March 29 65.6°F
April 02 66.6°F March 28 65.6°F
April 01 64.8°F March 27 63.8°F
March 31 64.4°F March 26 64.0°F
March 30 64.4°F March 25 64.8°F

When is the Warmest Sea for Wilmington Island?

According to our data for the last three years for Wilmington 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 Wilmington Island was 88.1°F. The maximum and minimum values were 84.6°F and 91.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Wilmington Island was 89.1°F. The maximum and minimum values were 86.6°F and 91.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Wilmington Island was 83.1°F. The maximum and minimum values were 81.0°F and 84.8°F respectively.

Best Time to Visit Wilmington Island
The most sunny months:
October 16 days
November 15 days
December 15 days
The most warm months:
July 91.6 °F
August 89.6 °F
June 88.6 °F
Warmest sea temperature:
August 88.6 °F
July 88.5 °F
September 84.9 °F
The most cold months:
January 56.4 °F
December 59.9 °F
February 60.4 °F
The most rainy months:
August 6 days
July 4 days
February 3 days
The most windy months:
February 8 mph
January 8 mph
December 8 mph

Wilmington Island on the Weather Map

USA Resorts:
NAME
Chicago +46
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +54
Los Angeles +56
Maui +66
Miami +74
Miami Beach +78
New York +40
San Diego +58
San Francisco +50
Sarasota +72
Tampa +72
Washington +48
24 Hours Weather Forecast
Wilmington Island
Local time: 07:05
03 apr, friday
0900 64°F
NW
9 mph
1200 68°F
NW
11 mph
1500 70°F
NW
11 mph
1800 68°F
NW
9 mph
2100 66°F
NW
8 mph
04 apr, saturday
0000 64°F
NW
9 mph
0300 58°F
NW
8 mph
0600 56°F
NW
7 mph