Sea Temperature in St Ives in December

Complete information on the sea temperature range in the Celtic Sea in St Ives in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in St Ives. 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 St Ives in December

10°C

MINIMUN

11.5°C

AVERAGE

13°C

MAXIMUM

Historical Data of Water Temperature in December in St Ives

Water Temperature Chart for Celtic Sea in St Ives in December

Sea Temperature Table in St Ives in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	13°C	12°C	13°C	12.5°C
Dec 2	13°C	13°C	13°C	13.0°C
Dec 3	13°C	12°C	13°C	12.8°C
Dec 4	13°C	12°C	13°C	12.5°C
Dec 5	13°C	12°C	13°C	12.5°C
Dec 6	12°C	12°C	13°C	12.5°C
Dec 7	12°C	12°C	12°C	12.0°C
Dec 8	12°C	12°C	12°C	12.0°C
Dec 9	13°C	12°C	12°C	12.3°C
Dec 10	13°C	12°C	12°C	12.3°C
Dec 11	13°C	11°C	12°C	12.0°C
Dec 12	12°C	11°C	12°C	11.8°C
Dec 13	12°C	11°C	12°C	11.8°C
Dec 14	12°C	12°C	12°C	11.8°C
Dec 15	12°C	11°C	11°C	11.3°C
Dec 16	11°C	11°C	12°C	11.5°C
Dec 17	12°C	11°C	11°C	11.5°C
Dec 18	12°C	12°C	11°C	11.8°C
Dec 19	12°C	11°C	11°C	11.5°C
Dec 20	11°C	11°C	11°C	11.3°C
Dec 21	11°C	11°C	11°C	11.3°C
Dec 22	11°C	11°C	11°C	11.3°C
Dec 23	11°C	11°C	11°C	11.3°C
Dec 24	11°C	11°C	11°C	11.3°C
Dec 25	11°C	11°C	11°C	11.0°C
Dec 26	11°C	11°C	11°C	11.0°C
Dec 27	11°C	11°C	11°C	11.0°C
Dec 28	10°C	11°C	11°C	11.0°C
Dec 29	11°C	11°C	10°C	10.8°C
Dec 30	11°C	11°C	10°C	10.8°C

St Ives Climate and Swimming Opportunities in December

10°C

Average Day Air Temperature

6°C

Average Night Air Temperature

133 mm

Precipitation Amount per Month

15 days

Number of Rainy Days

8 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

26 km/h

Average Wind Speed

88%

Average
humidity

St Ives lies within the England in United Kingdom. The average daytime temperature in St Ives in December is 10°C (51°F), while the nighttime average is 6°C (42°F). There are typically 15 rainy days during the month, with a total precipitation of 133 mm (5.2 inches). The daylight duration in December in St Ives is 8 hours, with an average of 2 hours of sunshine per day. The average wind speed in December is 26 km/h (16 mph), and the humidity level is around 88%.

The water temperature in St Ives in December ranges from 10°C to 13°C (50°F to 55°F). At the beginning of the month, the average temperature is around 13°C (55°F), shifting to 12°C (54°F) by mid-December and reaching 11°C (52°F) in the last ten days. Overall, the average sea temperature in St Ives for December is 12°C (54°F). The water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in St Ives

What is the sea temperature in St Ives in December?

The water temperature in the Celtic Sea in St Ives in December ranges from 10°C to 13°C (50°F to 55°F).

Is it possible to swim in the Celtic Sea in St Ives in December?

The average sea temperature in St Ives in December is 12°C (54°F), and the air temperature is 10°C (51°F), so the water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.