Measurements:
°C
°F
Fenwick Island
54°F
S 6 mph
Feels like: 52°F
Precip: 0%
World Resorts USA Fenwick Island Weather

Fenwick Island Sea Water Temperature

Current Sea Water Temperature:
+39.6°F
Maximum Sea Water Temperature in January: 49.2°F
Minimum Sea Water Temperature in January: 32.8°F
Average water temperature in January: 42.3°F

Sea Water Temperature for the Last 10 Days:

January 08 39.6°F January 03 39.4°F
January 07 38.8°F January 02 39.8°F
January 06 38.2°F January 01 40.2°F
January 05 38.8°F December 31 40.6°F
January 04 38.8°F December 30 41.2°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: 2025 2024 2023

The average sea surface temperature in July 2025 for Fenwick Island was 79.9°F. The maximum and minimum values were 76.6°F and 83.2°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
October 15 days
December 13 days
The most warm months:
July 86.9 °F
August 83.9 °F
June 80.9 °F
Warmest sea temperature:
July 78.2 °F
August 77.6 °F
September 76.0 °F
The most cold months:
January 40.8 °F
February 44.6 °F
December 46.0 °F
The most rainy months:
August 4 days
July 3 days
October 3 days
The most windy months:
March 11 mph
April 11 mph
January 11 mph

Fenwick Island on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Fenwick Island
Local time: 15:32
08 jan, thursday
1800 48°F
W
4 mph
2100 34°F
N
4 mph
09 jan, friday
0000 34°F
N
6 mph
0300 34°F
N
8 mph
0600 36°F
N
9 mph
0900 40°F
N
11 mph
1200 44°F
N
14 mph
1500 48°F
N
18 mph