Sea Temperature in Porthcawl in December

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

46°F

MINIMUN

51°F

AVERAGE

55°F

MAXIMUM

Historical Data of Water Temperature in December in Porthcawl

Water Temperature Chart for Celtic Sea in Porthcawl in December

Sea Temperature Table in Porthcawl in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	52°C	52°C	54°C	52°C
Dec 2	54°C	52°C	54°C	53°C
Dec 3	52°C	52°C	54°C	52°C
Dec 4	52°C	52°C	54°C	52°C
Dec 5	52°C	52°C	52°C	52°C
Dec 6	52°C	50°C	52°C	51°C
Dec 7	52°C	48°C	52°C	51°C
Dec 8	52°C	52°C	50°C	51°C
Dec 9	52°C	52°C	48°C	51°C
Dec 10	50°C	50°C	50°C	50°C
Dec 11	50°C	50°C	52°C	51°C
Dec 12	50°C	50°C	50°C	50°C
Dec 13	50°C	50°C	50°C	50°C
Dec 14	48°C	50°C	50°C	50°C
Dec 15	48°C	48°C	50°C	49°C
Dec 16	48°C	48°C	50°C	49°C
Dec 17	48°C	46°C	48°C	48°C
Dec 18	48°C	46°C	48°C	48°C
Dec 19	48°C	46°C	48°C	48°C
Dec 20	48°C	46°C	48°C	48°C
Dec 21	48°C	48°C	48°C	49°C
Dec 22	48°C	48°C	48°C	49°C
Dec 23	48°C	48°C	46°C	48°C
Dec 24	46°C	48°C	46°C	48°C
Dec 25	46°C	48°C	48°C	48°C
Dec 26	46°C	50°C	48°C	48°C
Dec 27	46°C	50°C	46°C	48°C
Dec 28	46°C	48°C	46°C	47°C
Dec 29	46°C	48°C	46°C	47°C
Dec 30	46°C	48°C	48°C	48°C

Porthcawl Climate and Swimming Opportunities in December

48°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

10 mph

Average Wind Speed

92%

Average
humidity

Porthcawl lies within the Wales in United Kingdom. The average daytime temperature in Porthcawl in December is 9°C (47°F), while the nighttime average is 3°C (38°F). There are typically 17 rainy days during the month, with a total precipitation of 109 mm (4.3 inches). The daylight duration in December in Porthcawl is 8 hours, with an average of 2 hours of sunshine per day. The average wind speed in December is 16 km/h (10 mph), and the humidity level is around 92%.

The water temperature in Porthcawl in December ranges from 8°C to 11°C (46°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-December and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in Porthcawl for December is 10°C (50°F). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Porthcawl

What is the sea temperature in Porthcawl in December?

The water temperature in the Celtic Sea in Porthcawl in December ranges from 8°C to 11°C (46°F to 52°F).

Is it possible to swim in the Celtic Sea in Porthcawl in December?

The average sea temperature in Porthcawl in December is 10°C (50°F), and the air temperature is 9°C (47°F), so still too cold for most swimmers. Only short dips in proper gear are advisable.