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Sea Temperature in Cape Cod in December
Complete information on the sea temperature range in the Atlantic Ocean in Cape Cod in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Cape Cod. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Cape Cod in December
4°C
MINIMUN
7.5°C
AVERAGE
11°C
MAXIMUM
Historical Data of Water Temperature in December in Cape Cod
Water Temperature Chart for Atlantic Ocean in Cape Cod in December
Sea Temperature Table in Cape Cod in December Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Dec 1 | 9°C | 8°C | 10°C | 9.0°C |
| Dec 2 | 9°C | 8°C | 9°C | 8.8°C |
| Dec 3 | 9°C | 8°C | 10°C | 8.8°C |
| Dec 4 | 9°C | 8°C | 9°C | 8.5°C |
| Dec 5 | 9°C | 8°C | 9°C | 8.5°C |
| Dec 6 | 8°C | 8°C | 9°C | 8.3°C |
| Dec 7 | 8°C | 8°C | 9°C | 8.3°C |
| Dec 8 | 7°C | 8°C | 8°C | 8.0°C |
| Dec 9 | 7°C | 7°C | 8°C | 7.8°C |
| Dec 10 | 7°C | 8°C | 9°C | 7.8°C |
| Dec 11 | 8°C | 8°C | 9°C | 8.5°C |
| Dec 12 | 8°C | 8°C | 8°C | 8.0°C |
| Dec 13 | 8°C | 8°C | 8°C | 8.0°C |
| Dec 14 | 7°C | 7°C | 7°C | 7.3°C |
| Dec 15 | 7°C | 7°C | 7°C | 7.3°C |
| Dec 16 | 7°C | 7°C | 7°C | 7.3°C |
| Dec 17 | 7°C | 7°C | 7°C | 7.3°C |
| Dec 18 | 7°C | 7°C | 7°C | 7.3°C |
| Dec 19 | 7°C | 8°C | 7°C | 7.3°C |
| Dec 20 | 7°C | 8°C | 6°C | 7.3°C |
| Dec 21 | 7°C | 7°C | 6°C | 7.0°C |
| Dec 22 | 7°C | 7°C | 6°C | 6.8°C |
| Dec 23 | 6°C | 6°C | 6°C | 6.3°C |
| Dec 24 | 6°C | 6°C | 6°C | 6.3°C |
| Dec 25 | 6°C | 6°C | 6°C | 6.3°C |
| Dec 26 | 6°C | 6°C | 6°C | 6.3°C |
| Dec 27 | 6°C | 6°C | 5°C | 6.0°C |
| Dec 28 | 6°C | 6°C | 5°C | 6.0°C |
| Dec 29 | 6°C | 7°C | 5°C | 6.3°C |
| Dec 30 | 5°C | 7°C | 5°C | 6.0°C |
Cape Cod Climate and Swimming Opportunities in December
6°C
Average Day Air Temperature
0°C
Average Night Air Temperature
111 mm
Precipitation Amount per Month
12 days
Number of Rainy Days
9 hrs
Daylight
per Day
4 hrs
Sunshine
per Day
23 km/h
Average Wind Speed
68%
Average
humidity
Cape Cod lies within the Massachusetts in United States. The average daytime temperature in Cape Cod in December is 44°F (6°C), while the nighttime average is 31°F (-0°C). There are typically 12 rainy days during the month, with a total precipitation of 4.4 inches (111 mm). The daylight duration in December in Cape Cod is 9 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 14 mph (23 km/h), and the humidity level is around 68%.
The water temperature in Cape Cod in December ranges from 43°F to 48°F (6°C to 9°C). At the beginning of the month, the average temperature is around 48°F (9°C), shifting to 46°F (8°C) by mid-December and reaching 43°F (6°C) in the last ten days. Overall, the average sea temperature in Cape Cod for December is 45°F (7°C). Still too cold for most swimmers. Only short dips in proper gear are advisable.
Sea Temperature in December in Nearby Cities
Frequently Asked Questions About Water Temperatures in December in Cape Cod
What is the sea temperature in Cape Cod in December?
The water temperature in the Atlantic Ocean in Cape Cod in December ranges from 43°F to 48°F (6°C to 9°C).
Is it possible to swim in the Atlantic Ocean in Cape Cod in December?
The average sea temperature in Cape Cod in December is 45°F (7°C), and the air temperature is 44°F (6°C), so still too cold for most swimmers. Only short dips in proper gear are advisable.