Sea Temperature in Nantucket in January

Complete information on the sea temperature range in the Atlantic Ocean in Nantucket in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in Nantucket. 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 Nantucket in January

36°F

MINIMUN

41°F

AVERAGE

46°F

MAXIMUM

Historical Data of Water Temperature in January in Nantucket

Water Temperature Chart for Atlantic Ocean in Nantucket in January

Sea Temperature Table in Nantucket in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	43°C	41°C	43°C	42°C
Jan 2	43°C	41°C	45°C	42°C
Jan 3	43°C	41°C	39°C	41°C
Jan 4	43°C	45°C	45°C	43°C
Jan 5	43°C	43°C	39°C	41°C
Jan 6	43°C	45°C	37°C	41°C
Jan 7	43°C	41°C	45°C	42°C
Jan 8	43°C	39°C	41°C	40°C
Jan 9	43°C	39°C	37°C	39°C
Jan 10	43°C	45°C	37°C	40°C
Jan 11	41°C	39°C	37°C	38°C
Jan 12	41°C	37°C	45°C	40°C
Jan 13	41°C	39°C	41°C	39°C
Jan 14	41°C	41°C	41°C	40°C
Jan 15	41°C	41°C	39°C	39°C
Jan 16	41°C	45°C	45°C	42°C
Jan 17	41°C	45°C	45°C	42°C
Jan 18	41°C	45°C	41°C	41°C
Jan 19	41°C	43°C	43°C	41°C
Jan 20	41°C	41°C	43°C	40°C
Jan 21	41°C	39°C	43°C	40°C
Jan 22	41°C	39°C	39°C	39°C
Jan 23	41°C	43°C	43°C	41°C
Jan 24	39°C	43°C	43°C	40°C
Jan 25	39°C	41°C	43°C	39°C
Jan 26	37°C	39°C	41°C	38°C
Jan 27	37°C	39°C	41°C	38°C
Jan 28	37°C	39°C	41°C	38°C
Jan 29	36°C	37°C	41°C	37°C
Jan 30	36°C	45°C	43°C	39°C

Nantucket 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

Nantucket lies within the Massachusetts in United States. The average daytime temperature in Nantucket 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 Nantucket 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 Nantucket 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 39°F (4°C) by mid-January and reaching 39°F (4°C) in the last ten days. Overall, the average sea temperature in Nantucket 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 Nantucket

What is the sea temperature in Nantucket in January?

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

Is it possible to swim in the Atlantic Ocean in Nantucket in January?

The average sea temperature in Nantucket 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.