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Sea Temperature in Penarth in December
Complete information on the sea temperature range in the Celtic Sea in Penarth in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Penarth. 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 Penarth in December
7°C
MINIMUN
10°C
AVERAGE
13°C
MAXIMUM
Historical Data of Water Temperature in December in Penarth
Water Temperature Chart for Celtic Sea in Penarth in December
Sea Temperature Table in Penarth in December Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Dec 1 | 10°C | 10°C | 11°C | 10.5°C |
| Dec 2 | 10°C | 10°C | 11°C | 10.5°C |
| Dec 3 | 11°C | 10°C | 11°C | 10.5°C |
| Dec 4 | 10°C | 10°C | 11°C | 10.3°C |
| Dec 5 | 10°C | 10°C | 10°C | 10.0°C |
| Dec 6 | 10°C | 10°C | 11°C | 10.3°C |
| Dec 7 | 10°C | 9°C | 10°C | 9.8°C |
| Dec 8 | 10°C | 10°C | 9°C | 9.8°C |
| Dec 9 | 10°C | 10°C | 10°C | 10.0°C |
| Dec 10 | 10°C | 10°C | 10°C | 9.8°C |
| Dec 11 | 10°C | 9°C | 10°C | 9.5°C |
| Dec 12 | 9°C | 9°C | 10°C | 9.3°C |
| Dec 13 | 9°C | 9°C | 10°C | 9.3°C |
| Dec 14 | 9°C | 10°C | 10°C | 9.3°C |
| Dec 15 | 9°C | 9°C | 9°C | 9.0°C |
| Dec 16 | 8°C | 9°C | 9°C | 8.8°C |
| Dec 17 | 8°C | 9°C | 9°C | 8.8°C |
| Dec 18 | 9°C | 8°C | 9°C | 8.8°C |
| Dec 19 | 9°C | 8°C | 8°C | 8.5°C |
| Dec 20 | 8°C | 8°C | 9°C | 8.5°C |
| Dec 21 | 8°C | 8°C | 8°C | 8.3°C |
| Dec 22 | 9°C | 8°C | 8°C | 8.5°C |
| Dec 23 | 9°C | 9°C | 8°C | 8.8°C |
| Dec 24 | 8°C | 9°C | 8°C | 8.5°C |
| Dec 25 | 8°C | 9°C | 9°C | 8.8°C |
| Dec 26 | 8°C | 9°C | 9°C | 8.8°C |
| Dec 27 | 9°C | 9°C | 8°C | 8.8°C |
| Dec 28 | 8°C | 9°C | 8°C | 8.5°C |
| Dec 29 | 8°C | 9°C | 8°C | 8.5°C |
| Dec 30 | 7°C | 9°C | 8°C | 8.3°C |
Penarth Climate and Swimming Opportunities in December
9°C
Average Day Air Temperature
3°C
Average Night Air Temperature
109 mm
Precipitation Amount per Month
17 days
Number of Rainy Days
8 hrs
Daylight
per Day
2 hrs
Sunshine
per Day
16 km/h
Average Wind Speed
92%
Average
humidity
Penarth lies within the Wales in United Kingdom. The average daytime temperature in Penarth 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 Penarth 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 Penarth 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 10°C (50°F), shifting to 9°C (48°F) by mid-December and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in Penarth for December is 9°C (48°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 Penarth
What is the sea temperature in Penarth in December?
The water temperature in the Celtic Sea in Penarth in December ranges from 8°C to 11°C (46°F to 52°F).
Is it possible to swim in the Celtic Sea in Penarth in December?
The average sea temperature in Penarth in December is 9°C (48°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.