Swim in Cardiff in december 2024What is the temperature of the sea in in december?

Average sea temperature in Cardiff in december 2024.

In december, according to seasonal norms, the sea temperature in Cardiff is:

Minimum: 51°F

Average: 53°F

Maximum: 56°F

Other useful seasonal weather averages in december:

  • Outside temperature: 43°F to 48°F
  • Most common weather: "Cloudy"
  • The wind blows at 1.9mph
  • It rains a total of 3in, over 6 day(s).

Should we swim in Cardiff in december?

No... The water temperature in Cardiff in december is freezing

You won't be able to swim in Cardiff in december! The water temperature is freezing, reaching as low as 51°F (and only 56°F at best)! Our advice: if you are going to Cardiff this month, plan to sightsee and forget the beach!

Note also that in december, the climate is bad with an average outside temperature of 46°F, 2.9in of precipitation (over 6 days) and 88.48 % humidity.

Water and normal seasonal temperatures in Cardiff in december

December
Average sea temperature 53°F
Minimum sea temperature 51°F
Maximum sea temperature 56°F
Average outside temperature 47°F
Maximum outside temperature 49°F
Minimum outside temperature 45°F
Wind speed 16.8mph
Wind temperature 38°F
Precipitation 3in
Number of days of rain 6 jour(s)
(18%)
Humidity 89%
Visibility in kilometers 9.08km
Cloud cover 59%
Our opinion freezing swimming

Swim elsewhere in Wales in december

City Average T° Max. T° Our opinion
Pembrokeshire in december52°F56°Ffreezing swimming
Swansea in december53°F55°Ffreezing swimming
Barmouth in december52°F55°Ffreezing swimming
Llandudno in december50°F54°Ffreezing swimming

Swim in Wales in december: sea temperature by city

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