Measurements:
°C
°F
Wilmington Island
86°F
E 7 mph
Feels like: 86°F
Precip: 0%
World Resorts USA Wilmington Island Weather

Wilmington Island Sea Water Temperature

Current Sea Water Temperature:
+75.4°F
Maximum Sea Water Temperature in May: 84.4°F
Minimum Sea Water Temperature in May: 71.8°F
Average water temperature in May: 77.6°F

Sea Water Temperature for the Last 10 Days:

May 14 75.4°F May 09 74.6°F
May 13 75.8°F May 08 76.4°F
May 12 75.8°F May 07 73.6°F
May 11 75.8°F May 06 73.6°F
May 10 74.4°F May 05 72.6°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
April 16 days
November 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
Boston +56
Chicago +56
Hawaii +78
Honolulu +78
Houston +98
Las Vegas +102
Los Angeles +76
Maui +72
Miami +90
Miami Beach +92
New York +70
San Diego +72
San Francisco +72
Sarasota +96
Tampa +96
24 Hours Weather Forecast
Wilmington Island
Local time: 14:01
14 may, thursday
1500 86°F
E
7 mph
1800 84°F
SE
8 mph
2100 78°F
SE
8 mph
15 may, friday
0000 70°F
S
9 mph
0300 64°F
SW
14 mph
0600 62°F
SW
16 mph
0900 66°F
SW
15 mph
1200 70°F
W
12 mph