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

Average sea temperature in Swansea in december 2024.

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

Minimum: 50°F

Average: 53°F

Maximum: 55°F

Other useful seasonal weather averages in december:

  • Outside temperature: 45°F to 49°F
  • Most common weather: "Cloudy"
  • The wind blows at 2.5mph
  • It rains a total of 6.7in, over 12 day(s).

Should we swim in Swansea in december?

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

You won't be able to swim in Swansea in december! The water temperature is freezing, reaching as low as 50°F (and only 55°F at best)! Our advice: if you are going to Swansea this month, plan to sightsee and forget the beach!

Note also that in december, the climate is bad with an average outside temperature of 47°F, 6.7in of precipitation (over 12 days) and 86.4 % humidity.

Water and normal seasonal temperatures in Swansea in december

December
Average sea temperature 53°F
Minimum sea temperature 50°F
Maximum sea temperature 55°F
Average outside temperature 49°F
Maximum outside temperature 50°F
Minimum outside temperature 47°F
Wind speed 19.3mph
Wind temperature 40°F
Precipitation 6.7in
Number of days of rain 12 jour(s)
(39%)
Humidity 87%
Visibility in kilometers 8.88km
Cloud cover 63%
Our opinion freezing swimming

Swim elsewhere in Wales in december

City Average T° Max. T° Our opinion
Cardiff in december53°F56°Ffreezing swimming
Pembrokeshire in december52°F56°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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