Measurements:
°C
°F
Wilmington Island
92°F
S 1 mph
Feels like: 108°F
Precip: 8%
World Resorts USA Wilmington Island Weather

Wilmington Island Sea Water Temperature

Current Sea Water Temperature:
+90.0°F
Maximum Sea Water Temperature in July: 91.8°F
Minimum Sea Water Temperature in July: 84.6°F
Average water temperature in July: 88.6°F

Sea Water Temperature for the Last 10 Days:

July 15 90.0°F July 10 90.2°F
July 14 90.2°F July 09 89.6°F
July 13 90.8°F July 08 89.8°F
July 12 91.4°F July 07 89.8°F
July 11 90.8°F July 06 89.4°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 89.7°F. The maximum and minimum values were 88.4°F and 91.4°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 91.6 °F
August 89.6 °F
June 88.8 °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 +92
Chicago +86
Hawaii +80
Houston +80
Las Vegas +120
Los Angeles +106
Maui +76
Miami +96
Myrtle Beach +96
New York +110
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Wilmington Island
Local time: 16:00
15 jul, wednesday
1800 84°F
NW
3 mph
2100 86°F
N
2 mph
16 jul, thursday
0000 84°F
E
4 mph
0300 82°F
E
6 mph
0600 80°F
SE
6 mph
0900 84°F
SE
5 mph
1200 92°F
NE
2 mph
1500 92°F
NW
9 mph