Measurements:
°C
°F
Cape May
28°F
SW 12 mph
Feels like: 18°F
Precip: 0%
World Resorts USA Cape May Weather

Cape May Sea Water Temperature

Current Sea Water Temperature:
+48.6°F
Maximum Sea Water Temperature in December: 57.2°F
Minimum Sea Water Temperature in December: 40.2°F
Average water temperature in December: 46.9°F

Sea Water Temperature for the Last 10 Days:

December 05 48.6°F November 30 48.2°F
December 04 48.4°F November 29 50.0°F
December 03 50.0°F November 28 52.6°F
December 02 49.4°F November 27 53.2°F
December 01 48.6°F November 26 52.8°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 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 Cape May was 79.0°F. The maximum and minimum values were 75.6°F and 83.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Cape May was 78.5°F. The maximum and minimum values were 75.6°F and 82.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cape May was 74.7°F. The maximum and minimum values were 73.0°F and 76.8°F respectively.

Best Time to Visit Cape May
The most sunny months:
November 17 days
October 16 days
June 14 days
The most warm months:
July 85.0 °F
August 82.5 °F
June 78.4 °F
Warmest sea temperature:
July 77.7 °F
August 77.3 °F
September 75.6 °F
The most cold months:
January 39.1 °F
February 41.8 °F
December 44.8 °F
The most rainy months:
April 3 days
July 3 days
March 3 days
The most windy months:
March 12 mph
January 12 mph
April 11 mph

Cape May on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Cape May
Local time: 03:34
05 dec, friday
0600 26°F
SW
8 mph
0900 26°F
S
7 mph
1200 28°F
SW
8 mph
1500 34°F
SW
6 mph
1800 34°F
SW
8 mph
2100 32°F
S
8 mph
06 dec, saturday
0000 34°F
S
9 mph
0300 34°F
S
9 mph