Sea Temperature in Portsmouth in January

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

9°C

MINIMUN

14°C

AVERAGE

19°C

MAXIMUM

Historical Data of Water Temperature in January in Portsmouth

Water Temperature Chart for Atlantic Ocean in Portsmouth in January

Sea Temperature Table in Portsmouth in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	15°C	16°C	16°C	15.8°C
Jan 2	15°C	16°C	16°C	15.8°C
Jan 3	15°C	16°C	16°C	15.8°C
Jan 4	14°C	15°C	15°C	15.0°C
Jan 5	13°C	15°C	15°C	14.5°C
Jan 6	14°C	15°C	15°C	14.8°C
Jan 7	14°C	15°C	15°C	14.8°C
Jan 8	11°C	15°C	15°C	14.3°C
Jan 9	11°C	14°C	14°C	13.5°C
Jan 10	10°C	14°C	14°C	13.0°C
Jan 11	11°C	14°C	14°C	13.5°C
Jan 12	11°C	14°C	14°C	13.3°C
Jan 13	14°C	13°C	13°C	13.5°C
Jan 14	14°C	13°C	13°C	13.3°C
Jan 15	15°C	13°C	13°C	13.3°C
Jan 16	13°C	13°C	13°C	13.3°C
Jan 17	14°C	12°C	12°C	12.8°C
Jan 18	14°C	12°C	12°C	13.0°C
Jan 19	13°C	12°C	12°C	12.5°C
Jan 20	14°C	12°C	12°C	13.0°C
Jan 21	14°C	11°C	11°C	12.5°C
Jan 22	14°C	11°C	11°C	12.5°C
Jan 23	13°C	11°C	11°C	12.3°C
Jan 24	14°C	11°C	11°C	12.8°C
Jan 25	13°C	11°C	11°C	11.8°C
Jan 26	16°C	10°C	10°C	11.8°C
Jan 27	16°C	10°C	10°C	12.3°C
Jan 28	15°C	10°C	10°C	11.8°C
Jan 29	15°C	10°C	10°C	12.0°C
Jan 30	15°C	9°C	9°C	11.8°C

Portsmouth Climate and Swimming Opportunities in January

13°C

Average Day Air Temperature

4°C

Average Night Air Temperature

116 mm

Precipitation Amount per Month

10 days

Number of Rainy Days

10 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

18 km/h

Average Wind Speed

73%

Average
humidity

Portsmouth lies within the North Carolina in United States. The average daytime temperature in Portsmouth in January is 55°F (13°C), while the nighttime average is 39°F (4°C). There are typically 10 rainy days during the month, with a total precipitation of 4.6 inches (116 mm). The daylight duration in January in Portsmouth is 10 hours, with an average of 5 hours of sunshine per day. The average wind speed in January is 11 mph (18 km/h), and the humidity level is around 73%.

The water temperature in Portsmouth in January ranges from 52°F to 61°F (11°C to 16°C). At the beginning of the month, the average temperature is around 59°F (15°C), shifting to 55°F (13°C) by mid-January and reaching 54°F (12°C) in the last ten days. Overall, the average sea temperature in Portsmouth for January is 55°F (13°C). The water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Portsmouth

What is the sea temperature in Portsmouth in January?

The water temperature in the Atlantic Ocean in Portsmouth in January ranges from 52°F to 61°F (11°C to 16°C).

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

The average sea temperature in Portsmouth in January is 55°F (13°C), and the air temperature is 55°F (13°C), so the water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.