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Sea Temperature in Barmouth in December
Complete information on the sea temperature range in the Celtic Sea in Barmouth in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Barmouth. 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 Barmouth in December
7°C
MINIMUN
10°C
AVERAGE
13°C
MAXIMUM
Historical Data of Water Temperature in December in Barmouth
Water Temperature Chart for Celtic Sea in Barmouth in December
Sea Temperature Table in Barmouth in December Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Dec 1 | 10°C | 11°C | 11°C | 10.8°C |
| Dec 2 | 11°C | 11°C | 11°C | 11.0°C |
| Dec 3 | 10°C | 10°C | 11°C | 10.3°C |
| Dec 4 | 10°C | 10°C | 11°C | 10.3°C |
| Dec 5 | 10°C | 10°C | 11°C | 10.3°C |
| Dec 6 | 10°C | 10°C | 10°C | 10.0°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 | 9°C | 9.8°C |
| Dec 10 | 10°C | 9°C | 10°C | 9.8°C |
| Dec 11 | 10°C | 9°C | 10°C | 9.8°C |
| Dec 12 | 10°C | 9°C | 10°C | 9.5°C |
| Dec 13 | 10°C | 9°C | 10°C | 9.8°C |
| Dec 14 | 10°C | 9°C | 10°C | 9.5°C |
| Dec 15 | 9°C | 9°C | 10°C | 9.3°C |
| Dec 16 | 9°C | 9°C | 9°C | 9.0°C |
| Dec 17 | 9°C | 8°C | 9°C | 8.5°C |
| Dec 18 | 9°C | 8°C | 9°C | 8.8°C |
| Dec 19 | 9°C | 8°C | 9°C | 8.8°C |
| Dec 20 | 9°C | 9°C | 9°C | 9.0°C |
| Dec 21 | 9°C | 9°C | 8°C | 8.8°C |
| Dec 22 | 8°C | 9°C | 8°C | 8.5°C |
| Dec 23 | 8°C | 10°C | 8°C | 8.8°C |
| Dec 24 | 8°C | 9°C | 8°C | 8.8°C |
| Dec 25 | 9°C | 9°C | 8°C | 8.8°C |
| Dec 26 | 8°C | 9°C | 8°C | 8.5°C |
| Dec 27 | 8°C | 9°C | 8°C | 8.5°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 |
Barmouth Climate and Swimming Opportunities in December
9°C
Average Day Air Temperature
3°C
Average Night Air Temperature
104 mm
Precipitation Amount per Month
17 days
Number of Rainy Days
7 hrs
Daylight
per Day
1 hrs
Sunshine
per Day
19 km/h
Average Wind Speed
90%
Average
humidity
Barmouth lies within the Wales in United Kingdom. The average daytime temperature in Barmouth 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 104 mm (4.1 inches). The daylight duration in December in Barmouth is 7 hours, with an average of 1 hours of sunshine per day. The average wind speed in December is 19 km/h (12 mph), and the humidity level is around 90%.
The water temperature in Barmouth 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 Barmouth 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 Barmouth
What is the sea temperature in Barmouth in December?
The water temperature in the Celtic Sea in Barmouth in December ranges from 8°C to 11°C (46°F to 52°F).
Is it possible to swim in the Celtic Sea in Barmouth in December?
The average sea temperature in Barmouth 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.