Measurements:
°C
°F
Cape May
74°F
W 7 mph
Feels like: 74°F
Precip: 4%
World Resorts USA Cape May Weather

Cape May Sea Water Temperature

Current Sea Water Temperature:
+78.6°F
Maximum Sea Water Temperature in September: 82.2°F
Minimum Sea Water Temperature in September: 69.4°F
Average water temperature in September: 75.9°F

Sea Water Temperature for the Last 10 Days:

September 15 78.6°F September 10 80.6°F
September 14 79.0°F September 09 80.8°F
September 13 78.8°F September 08 80.6°F
September 12 78.4°F September 07 81.0°F
September 11 80.6°F September 06 80.8°F

When is the Warmest Sea for Cape May?

According to our data for the last three years for Cape May 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: 2026 2025 2024

The average sea surface temperature in August 2026 for Cape May was 79.0°F. The maximum and minimum values were 74.4°F and 82.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Cape May was 77.0°F. The maximum and minimum values were 73.2°F and 80.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Cape May was 79.5°F. The maximum and minimum values were 76.8°F and 81.0°F respectively.

Best Time to Visit Cape May
The most sunny months:
November 17 days
October 16 days
June 16 days
The most warm months:
July 86.1 °F
August 83.3 °F
June 79.8 °F
Warmest sea temperature:
July 77.6 °F
August 77.5 °F
September 75.6 °F
The most cold months:
January 38.7 °F
February 41.1 °F
December 44.1 °F
The most rainy months:
July 3 days
March 2 days
April 2 days
The most windy months:
January 12 mph
March 12 mph
December 12 mph

Cape May on the Weather Map

USA Resorts:
NAME
Boston +64
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +74
Maui +66
Miami +92
Myrtle Beach +88
New York +72
Panama City Beach +90
San Diego +72
San Francisco +60
Santa Monica +72
Sarasota +94
Washington +76
24 Hours Weather Forecast
Cape May
Local time: 11:13
15 sep, tuesday
1200 74°F
W
7 mph
1500 74°F
NW
10 mph
1800 72°F
NW
9 mph
2100 70°F
NW
11 mph
16 sep, wednesday
0000 70°F
NW
10 mph
0300 70°F
N
7 mph
0600 70°F
NE
2 mph
0900 72°F
N
1 mph