Measurements:
°C
°F
Wilmington Island
46°F
SW 4 mph
Feels like: 42°F
Precip: 0%
World Resorts USA Wilmington Island Weather

Wilmington Island Sea Water Temperature

Current Sea Water Temperature:
+50.4°F
Maximum Sea Water Temperature in January: 64.8°F
Minimum Sea Water Temperature in January: 44.6°F
Average water temperature in January: 54.8°F

Sea Water Temperature for the Last 10 Days:

January 29 50.4°F January 24 52.4°F
January 28 51.0°F January 23 51.6°F
January 27 52.4°F January 22 50.6°F
January 26 52.2°F January 21 51.4°F
January 25 51.8°F January 20 51.8°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 56.5 °F
December 59.9 °F
February 61.6 °F
The most rainy months:
August 6 days
July 4 days
February 3 days
The most windy months:
January 8 mph
December 8 mph
February 7 mph

Wilmington Island on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +74
Honolulu +74
Houston +38
Las Vegas +48
Los Angeles +56
Maui +68
Miami +64
Miami Beach +70
New York +12
San Diego +60
San Francisco +50
Sarasota +58
Tampa +58
Washington +12
24 Hours Weather Forecast
Wilmington Island
Local time: 10:55
29 jan, thursday
1200 46°F
SW
4 mph
1500 50°F
W
3 mph
1800 46°F
W
6 mph
2100 46°F
W
6 mph
30 jan, friday
0000 46°F
W
3 mph
0300 46°F
W
1 mph
0600 46°F
E
2 mph
0900 50°F
SE
3 mph