Measurements:
°C
°F
Wilmington Island
94°F
N 11 mph
Feels like: 112°F
Precip: 9%
World Resorts USA Wilmington Island Weather

Wilmington Island Sea Water Temperature

Current Sea Water Temperature:
+89.4°F
Maximum Sea Water Temperature in August: 91.8°F
Minimum Sea Water Temperature in August: 84.6°F
Average water temperature in August: 88.7°F

Sea Water Temperature for the Last 10 Days:

August 05 89.4°F July 31 90.4°F
August 04 90.2°F July 30 89.8°F
August 03 90.8°F July 29 90.2°F
August 02 91.2°F July 28 90.6°F
August 01 90.8°F July 27 90.8°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 July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Wilmington Island was 90.3°F. The maximum and minimum values were 88.4°F and 91.8°F respectively.

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 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 92.1 °F
August 89.6 °F
June 88.8 °F
Warmest sea temperature:
July 88.8 °F
August 88.6 °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
February 3 days
July 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 +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Wilmington Island
Local time: 15:56
05 aug, wednesday
1800 88°F
N
12 mph
2100 88°F
N
14 mph
06 aug, thursday
0000 86°F
NW
10 mph
0300 84°F
N
9 mph
0600 82°F
N
6 mph
0900 86°F
N
4 mph
1200 90°F
NW
7 mph
1500 90°F
NW
10 mph