Measurements:
°C
°F
Wilmington Island
78°F
SW 17 mph
Feels like: 82°F
Precip: 24%
World Resorts USA Wilmington Island Weather

Wilmington Island Sea Water Temperature

Current Sea Water Temperature:
+82.4°F
Maximum Sea Water Temperature in October: 83.6°F
Minimum Sea Water Temperature in October: 68.4°F
Average water temperature in October: 76.4°F

Sea Water Temperature for the Last 10 Days:

October 05 82.4°F September 30 80.8°F
October 04 82.4°F September 29 80.8°F
October 03 82.8°F September 28 81.2°F
October 02 81.8°F September 27 81.4°F
October 01 81.4°F September 26 84.6°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Wilmington Island was 90.0°F. The maximum and minimum values were 88.8°F and 91.6°F respectively.

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 September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Wilmington Island was 87.1°F. The maximum and minimum values were 80.8°F and 90.2°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 90.0 °F
June 88.8 °F
Warmest sea temperature:
August 88.8 °F
July 88.8 °F
September 85.2 °F
The most cold months:
January 56.4 °F
December 59.9 °F
February 60.4 °F
The most rainy months:
August 5 days
July 3 days
February 3 days
The most windy months:
February 8 mph
January 8 mph
September 8 mph

Wilmington Island on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Wilmington Island
Local time: 19:52
05 oct, monday
2100 78°F
SW
17 mph
06 oct, tuesday
0000 80°F
SW
17 mph
0300 78°F
SW
18 mph
0600 78°F
SW
19 mph
0900 78°F
SW
22 mph
1200 78°F
W
20 mph
1500 80°F
SW
24 mph
1800 80°F
SW
27 mph