Sea Temperature in Southwest Harbor in January

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

37°F

MINIMUN

41°F

AVERAGE

45°F

MAXIMUM

Historical Data of Water Temperature in January in Southwest Harbor

Water Temperature Chart for Atlantic Ocean in Southwest Harbor in January

Sea Temperature Table in Southwest Harbor in January Over the Past Years

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

Southwest Harbor Climate and Swimming Opportunities in January

46°F

Average Day Air Temperature

37°F

Average Night Air Temperature

3 in

Precipitation Amount per Month

19 days

Number of Rainy Days

8 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

15 mph

Average Wind Speed

91%

Average
humidity

Southwest Harbor lies within the Maine in United States. The average daytime temperature in Southwest Harbor in January is 46°F (8°C), while the nighttime average is 37°F (3°C). There are typically 19 rainy days during the month, with a total precipitation of 3.4 inches (85 mm). The daylight duration in January in Southwest Harbor is 8 hours, with an average of 2 hours of sunshine per day. The average wind speed in January is 15 mph (24 km/h), and the humidity level is around 91%.

The water temperature in Southwest Harbor in January ranges from 39°F to 43°F (4°C to 6°C). At the beginning of the month, the average temperature is around 43°F (6°C), shifting to 43°F (6°C) by mid-January and reaching 41°F (5°C) in the last ten days. Overall, the average sea temperature in Southwest Harbor for January is 43°F (6°C). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Southwest Harbor

What is the sea temperature in Southwest Harbor in January?

The water temperature in the Atlantic Ocean in Southwest Harbor in January ranges from 39°F to 43°F (4°C to 6°C).

Is it possible to swim in the Atlantic Ocean in Southwest Harbor in January?

The average sea temperature in Southwest Harbor in January is 43°F (6°C), and the air temperature is 46°F (8°C), so still too cold for most swimmers. Only short dips in proper gear are advisable.