Sea Temperature in Port Isaac in January

Complete information on the sea temperature range in the Celtic Sea in Port Isaac in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in Port Isaac. 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 Port Isaac in January

46°F

MINIMUN

50°F

AVERAGE

54°F

MAXIMUM

Historical Data of Water Temperature in January in Port Isaac

Water Temperature Chart for Celtic Sea in Port Isaac in January

Sea Temperature Table in Port Isaac in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	50°C	52°C	52°C	51°C
Jan 2	52°C	52°C	52°C	52°C
Jan 3	50°C	52°C	52°C	51°C
Jan 4	52°C	54°C	50°C	51°C
Jan 5	50°C	48°C	48°C	50°C
Jan 6	50°C	52°C	48°C	51°C
Jan 7	50°C	50°C	48°C	50°C
Jan 8	50°C	54°C	50°C	51°C
Jan 9	50°C	48°C	52°C	51°C
Jan 10	50°C	48°C	48°C	50°C
Jan 11	48°C	52°C	50°C	51°C
Jan 12	50°C	54°C	48°C	51°C
Jan 13	50°C	48°C	50°C	50°C
Jan 14	50°C	50°C	50°C	50°C
Jan 15	48°C	52°C	48°C	50°C
Jan 16	50°C	52°C	48°C	50°C
Jan 17	50°C	52°C	52°C	51°C
Jan 18	50°C	52°C	50°C	51°C
Jan 19	48°C	52°C	50°C	50°C
Jan 20	50°C	52°C	50°C	51°C
Jan 21	50°C	54°C	54°C	52°C
Jan 22	50°C	48°C	54°C	51°C
Jan 23	50°C	48°C	50°C	50°C
Jan 24	48°C	50°C	54°C	51°C
Jan 25	50°C	52°C	50°C	51°C
Jan 26	48°C	52°C	50°C	50°C
Jan 27	50°C	54°C	54°C	52°C
Jan 28	48°C	48°C	52°C	50°C
Jan 29	50°C	52°C	52°C	51°C
Jan 30	50°C	52°C	48°C	50°C

Port Isaac Climate and Swimming Opportunities in January

46°F

Average Day Air Temperature

37°F

Average Night Air Temperature

4 in

Precipitation Amount per Month

17 days

Number of Rainy Days

8 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

11 mph

Average Wind Speed

91%

Average
humidity

Port Isaac lies within the England in United Kingdom. The average daytime temperature in Port Isaac in January is 8°C (47°F), while the nighttime average is 3°C (37°F). There are typically 17 rainy days during the month, with a total precipitation of 105 mm (4.1 inches). The daylight duration in January in Port Isaac is 8 hours, with an average of 2 hours of sunshine per day. The average wind speed in January is 18 km/h (11 mph), and the humidity level is around 91%.

The water temperature in Port Isaac in January ranges from 9°C to 11°C (48°F to 52°F). At the beginning of the month, the average temperature is around 11°C (52°F), shifting to 10°C (50°F) by mid-January and reaching 10°C (50°F) in the last ten days. Overall, the average sea temperature in Port Isaac for January is 10°C (50°F). 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 Port Isaac

What is the sea temperature in Port Isaac in January?

The water temperature in the Celtic Sea in Port Isaac in January ranges from 9°C to 11°C (48°F to 52°F).

Is it possible to swim in the Celtic Sea in Port Isaac in January?

The average sea temperature in Port Isaac in January is 10°C (50°F), and the air temperature is 8°C (47°F), so still too cold for most swimmers. Only short dips in proper gear are advisable.