Measurements:
°C
°F
Fenwick Island
78°F
N 12 mph
Feels like: 82°F
Precip: 17%
World Resorts USA Fenwick Island Weather

Fenwick Island Sea Water Temperature

Current Sea Water Temperature:
+80.2°F
Maximum Sea Water Temperature in August: 84.0°F
Minimum Sea Water Temperature in August: 70.6°F
Average water temperature in August: 78.0°F

Sea Water Temperature for the Last 10 Days:

August 25 80.2°F August 20 81.6°F
August 24 78.4°F August 19 79.0°F
August 23 78.2°F August 18 78.0°F
August 22 77.8°F August 17 80.6°F
August 21 80.4°F August 16 81.4°F

When is the Warmest Sea for Fenwick Island?

According to our data for the last three years for Fenwick 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 Fenwick Island was 77.7°F. The maximum and minimum values were 74.0°F and 80.6°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Fenwick Island was 79.8°F. The maximum and minimum values were 76.4°F and 82.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Fenwick Island was 75.3°F. The maximum and minimum values were 73.0°F and 78.0°F respectively.

Best Time to Visit Fenwick Island
The most sunny months:
November 17 days
June 15 days
October 15 days
The most warm months:
July 87.5 °F
August 83.9 °F
June 81.7 °F
Warmest sea temperature:
July 78.1 °F
August 77.9 °F
September 76.0 °F
The most cold months:
January 40.4 °F
February 43.6 °F
December 46.0 °F
The most rainy months:
August 4 days
July 3 days
October 3 days
The most windy months:
March 12 mph
January 11 mph
February 11 mph

Fenwick Island on the Weather Map

USA Resorts:
NAME
Boston +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
24 Hours Weather Forecast
Fenwick Island
Local time: 17:36
25 aug, tuesday
1800 78°F
N
12 mph
2100 78°F
NE
9 mph
26 aug, wednesday
0000 76°F
E
3 mph
0300 74°F
SE
5 mph
0600 74°F
SE
2 mph
0900 74°F
SE
1 mph
1200 76°F
NW
7 mph
1500 78°F
N
16 mph