Weather in Cape May: December
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Average day temperature: | 44.8°F |
| Average night temperature: | 39.5°F | |
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Sea water temperature: | 46.8°F |
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Number of sunny days: | 12 days |
| Day length: | 9.4 - 9.6 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.2 in. | |
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forecast
| Cape May |
temperature
| Cape May |
Air temperature in December, °F
The highest day temperature during December of 2025 was 55°F. At the same time the lowest night temperature was 21°F. Daily and nightly averages during December were 41.9°F and 33.3°F.
Sea water temperature in Cape May in December, °F
The average sea water temperature in December of 2025 was 44.8°F. The highest and lowest sea temperatures during the month were 50.0°F and 40.8°F.
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in Cape May in December is 1.2 in. Other months of the year show relatively similar values.
The average wind speed value in December is 11.8 mph It makes December one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 5.6.
Best time for vacation in Cape May
Cape May on a weather map
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