Current sea water temperature:
+40.8°F
| Minimum sea water temperature in December: | 56.5°F |
| Maximum sea water temperature in December: | 40.8°F |
| Average sea water temperature in December: | 46.9°F |
| more information | |
14 days
forecast
forecast
| Cape May |
monthly
weather
weather
| Cape May |
Sea water temperature for the last 10 days:
| December 22 | 40.8°F | December 17 | 42.1°F |
| December 21 | 42.3°F | December 16 | 42.6°F |
| December 20 | 42.8°F | December 15 | 42.4°F |
| December 19 | 41.4°F | December 14 | 44.2°F |
| December 18 | 41.5°F | December 13 | 42.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Cape May?
Based on the data about daily sea water temperature for the last three years the warmest sea in Cape May was noticed in July, August and September.
Monthly Sea Temperatures in Cape May, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 76.1°F. The highest and lowest sea temperatures during the month were 80.1°F and 73.0°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 75.7°F. The highest and lowest sea temperatures during the month were 79.0°F and 73.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.2°F. The highest and lowest sea temperatures during the month were 74.1°F and 70.7°F.
current
weather
weather
| Cape May |
weather in
December
December
| Cape May |
Best time for vacation in Cape May
Cape May on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Cape May
Local time: 05:21
December 22, monday
0600
28°F
SE
16 mph
16 mph
0900
30°F
SE
12 mph
12 mph
1200
37°F
SE
9 mph
9 mph
1500
41°F
E
8 mph
8 mph
1800
39°F
E
6 mph
6 mph
2100
37°F
NE
8 mph
8 mph
December 23, tuesday
0000
37°F
NE
11 mph
11 mph
0300
37°F
NE
11 mph
11 mph
