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

8°C

MINIMUN

10°C

AVERAGE

12°C

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	10°C	11°C	11°C	10.8°C
Jan 2	11°C	11°C	11°C	11.0°C
Jan 3	10°C	11°C	11°C	10.8°C
Jan 4	11°C	12°C	10°C	10.8°C
Jan 5	10°C	9°C	9°C	9.8°C
Jan 6	10°C	11°C	9°C	10.3°C
Jan 7	10°C	10°C	9°C	10.0°C
Jan 8	10°C	12°C	10°C	10.8°C
Jan 9	10°C	9°C	11°C	10.3°C
Jan 10	10°C	9°C	9°C	9.8°C
Jan 11	9°C	11°C	10°C	10.3°C
Jan 12	10°C	12°C	9°C	10.5°C
Jan 13	10°C	9°C	10°C	9.8°C
Jan 14	10°C	10°C	10°C	10.0°C
Jan 15	9°C	11°C	9°C	9.8°C
Jan 16	10°C	11°C	9°C	10.0°C
Jan 17	10°C	11°C	11°C	10.8°C
Jan 18	10°C	11°C	10°C	10.3°C
Jan 19	9°C	11°C	10°C	10.0°C
Jan 20	10°C	11°C	10°C	10.3°C
Jan 21	10°C	12°C	12°C	11.0°C
Jan 22	10°C	9°C	12°C	10.3°C
Jan 23	10°C	9°C	10°C	9.8°C
Jan 24	9°C	10°C	12°C	10.3°C
Jan 25	10°C	11°C	10°C	10.3°C
Jan 26	9°C	11°C	10°C	10.0°C
Jan 27	10°C	12°C	12°C	11.0°C
Jan 28	9°C	9°C	11°C	9.8°C
Jan 29	10°C	11°C	11°C	10.5°C
Jan 30	10°C	11°C	9°C	10.0°C

Port Isaac Climate and Swimming Opportunities in January

8°C

Average Day Air Temperature

3°C

Average Night Air Temperature

105 mm

Precipitation Amount per Month

17 days

Number of Rainy Days

8 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

18 km/h

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.