Cape May Weather in December
December in Cape May brings low temperatures, with highs of 10°C (50°F) and nights dropping to 2°C (36°F). Rainfall is on the higher side this month, averaging around 120 mm (4.7 in), so keep a rain jacket handy.
Rainfall in Cape May in December
Typically, about 11 days will experience rainfall, with an average of 120 mm (4.7 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Cape May in December
If you're visiting Cape May in December, expect highs of 10°C (50°F) and overnight lows around 2°C (36°F). Winter occurs in December. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Average water temperature in December
The water sits at 6°C (43°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.December in Cape May has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Cape May's climate page.
Cape May Temperature in December
Min Temperature
2°C (36°F)
Max Temperature
10°C (50°F)
Water Temperature
6°C (43°F)
Chance of Rain
37%
Precipitation
120 mm (4.7 in)
Rainy days
11 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cape May typically stay consistent throughout December, with daily highs averaging around 10°C (50°F). Nights are very cold, with lows typically ranging from -3°C (27°F) to 2°C (36°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Cape May in December
Browse day-by-day weather records for Cape May spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cape May historical weather extremes in December
Our historical data for Cape May spans 1976 to 2025, revealing these weather extremes.
- Cape May recorded its highest December temperature of 24°C (75°F) on December 7, 1998.
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Cape May in December
Dress warmly and in layers for your trip to Cape May in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 6°C (43°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough.What To Do in Cape May in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Cape May's climate page.
Temperature Rainfall Water Temp
See the full Cape May climate overview or explore weather in the United States of America.
