Sea Temperature in Old Greenwich in January

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

36°F

MINIMUN

41°F

AVERAGE

46°F

MAXIMUM

Historical Data of Water Temperature in January in Old Greenwich

Water Temperature Chart for Atlantic Ocean in Old Greenwich in January

Sea Temperature Table in Old Greenwich in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	46°C	45°C	45°C	45°C
Jan 2	46°C	45°C	45°C	45°C
Jan 3	46°C	45°C	45°C	45°C
Jan 4	46°C	45°C	45°C	45°C
Jan 5	46°C	43°C	45°C	45°C
Jan 6	46°C	43°C	43°C	44°C
Jan 7	46°C	43°C	43°C	44°C
Jan 8	46°C	43°C	43°C	44°C
Jan 9	46°C	43°C	43°C	44°C
Jan 10	45°C	41°C	43°C	43°C
Jan 11	45°C	41°C	41°C	43°C
Jan 12	45°C	39°C	41°C	42°C
Jan 13	45°C	39°C	41°C	42°C
Jan 14	45°C	39°C	41°C	42°C
Jan 15	45°C	39°C	41°C	42°C
Jan 16	45°C	39°C	39°C	41°C
Jan 17	45°C	39°C	39°C	41°C
Jan 18	45°C	39°C	39°C	41°C
Jan 19	45°C	39°C	39°C	41°C
Jan 20	45°C	39°C	39°C	41°C
Jan 21	45°C	39°C	37°C	40°C
Jan 22	45°C	39°C	37°C	40°C
Jan 23	45°C	39°C	37°C	40°C
Jan 24	43°C	39°C	37°C	40°C
Jan 25	43°C	39°C	37°C	40°C
Jan 26	41°C	39°C	36°C	38°C
Jan 27	41°C	39°C	36°C	38°C
Jan 28	41°C	39°C	36°C	38°C
Jan 29	43°C	39°C	36°C	39°C
Jan 30	41°C	39°C	36°C	38°C

Old Greenwich Climate and Swimming Opportunities in January

39°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

10 mph

Average Wind Speed

63%

Average
humidity

Old Greenwich lies within the Connecticut in United States. The average daytime temperature in Old Greenwich in January is 39°F (4°C), while the nighttime average is 26°F (-4°C). There are typically 11 rainy days during the month, with a total precipitation of 3.4 inches (86 mm). The daylight duration in January in Old Greenwich is 9 hours, with an average of 5 hours of sunshine per day. The average wind speed in January is 11 mph (17 km/h), and the humidity level is around 63%.

The water temperature in Old Greenwich in January ranges from 37°F to 45°F (3°C to 7°C). At the beginning of the month, the average temperature is around 45°F (7°C), shifting to 43°F (6°C) by mid-January and reaching 39°F (4°C) in the last ten days. Overall, the average sea temperature in Old Greenwich 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 Old Greenwich

What is the sea temperature in Old Greenwich in January?

The water temperature in the Atlantic Ocean in Old Greenwich in January ranges from 37°F to 45°F (3°C to 7°C).

Is it possible to swim in the Atlantic Ocean in Old Greenwich in January?

The average sea temperature in Old Greenwich in January is 41°F (5°C), and the air temperature is 39°F (4°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.