Measurements:
°C
°F
Fenwick Island
90°F
N 14 mph
Feels like: 102°F
Precip: 8%
World Resorts USA Fenwick Island Weather

Fenwick Island Sea Water Temperature

Current Sea Water Temperature:
+78.8°F
Maximum Sea Water Temperature in August: 84.0°F
Minimum Sea Water Temperature in August: 70.6°F
Average water temperature in August: 77.7°F

Sea Water Temperature for the Last 10 Days:

August 05 78.8°F July 31 77.0°F
August 04 76.4°F July 30 75.8°F
August 03 77.2°F July 29 74.6°F
August 02 78.0°F July 28 78.0°F
August 01 77.8°F July 27 78.4°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Fenwick Island was 78.5°F. The maximum and minimum values were 76.2°F and 82.4°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 77.6 °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 +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
Fenwick Island
Local time: 15:17
05 aug, wednesday
1800 90°F
N
14 mph
2100 82°F
N
13 mph
06 aug, thursday
0000 80°F
N
11 mph
0300 78°F
NE
8 mph
0600 78°F
NE
7 mph
0900 82°F
NE
11 mph
1200 86°F
N
13 mph
1500 88°F
NE
14 mph