Sea Temperature in Cape Cod in January

Complete information on the sea temperature range in the Atlantic Ocean in Cape Cod in January. Historical daily data. Climate details for January. 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 January

36°F

MINIMUN

41°F

AVERAGE

46°F

MAXIMUM

Historical Data of Water Temperature in January in Cape Cod

Water Temperature Chart for Atlantic Ocean in Cape Cod in January

Sea Temperature Table in Cape Cod in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	43°C	37°C	39°C	40°C
Jan 2	45°C	45°C	37°C	42°C
Jan 3	43°C	41°C	37°C	41°C
Jan 4	43°C	37°C	41°C	41°C
Jan 5	45°C	37°C	45°C	42°C
Jan 6	45°C	45°C	43°C	43°C
Jan 7	43°C	41°C	41°C	41°C
Jan 8	43°C	41°C	41°C	41°C
Jan 9	43°C	45°C	41°C	42°C
Jan 10	43°C	43°C	41°C	41°C
Jan 11	43°C	43°C	45°C	42°C
Jan 12	43°C	41°C	41°C	41°C
Jan 13	43°C	41°C	39°C	40°C
Jan 14	43°C	45°C	39°C	41°C
Jan 15	41°C	43°C	45°C	42°C
Jan 16	43°C	41°C	41°C	41°C
Jan 17	43°C	37°C	45°C	41°C
Jan 18	43°C	41°C	43°C	41°C
Jan 19	43°C	41°C	41°C	40°C
Jan 20	41°C	37°C	45°C	40°C
Jan 21	43°C	39°C	37°C	39°C
Jan 22	41°C	39°C	45°C	40°C
Jan 23	41°C	45°C	39°C	40°C
Jan 24	41°C	45°C	43°C	41°C
Jan 25	41°C	41°C	39°C	39°C
Jan 26	37°C	37°C	41°C	38°C
Jan 27	37°C	45°C	43°C	40°C
Jan 28	39°C	43°C	37°C	39°C
Jan 29	37°C	37°C	43°C	38°C
Jan 30	37°C	43°C	43°C	40°C

Cape Cod Climate and Swimming Opportunities in January

37°F

Average Day Air Temperature

25°F

Average Night Air Temperature

3 in

Precipitation Amount per Month

11 days

Number of Rainy Days

9 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

14 mph

Average Wind Speed

67%

Average
humidity

Cape Cod lies within the Massachusetts in United States. The average daytime temperature in Cape Cod in January is 38°F (3°C), while the nighttime average is 26°F (-4°C). There are typically 11 rainy days during the month, with a total precipitation of 3.5 inches (88 mm). The daylight duration in January in Cape Cod is 9 hours, with an average of 5 hours of sunshine per day. The average wind speed in January is 14 mph (23 km/h), and the humidity level is around 67%.

The water temperature in Cape Cod in January ranges from 37°F to 43°F (3°C to 6°C). At the beginning of the month, the average temperature is around 41°F (5°C), shifting to 41°F (5°C) by mid-January and reaching 39°F (4°C) in the last ten days. Overall, the average sea temperature in Cape Cod for January is 41°F (5°C). Swimming in such conditions is extremely dangerous due to the risk of hypothermia and cold shock. Only experienced winter swimmers with proper preparation should attempt it.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Cape Cod

What is the sea temperature in Cape Cod in January?

The water temperature in the Atlantic Ocean in Cape Cod in January ranges from 37°F to 43°F (3°C to 6°C).

Is it possible to swim in the Atlantic Ocean in Cape Cod in January?

The average sea temperature in Cape Cod in January is 41°F (5°C), and the air temperature is 38°F (3°C), so swimming in such conditions is extremely dangerous due to the risk of hypothermia and cold shock. Only experienced winter swimmers with proper preparation should attempt it.