Swim in Cardiff in april 2025What is the temperature of the sea in in april?

Average sea temperature in Cardiff in april 2025.

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

Minimum: 48°F

Average: 50°F

Maximum: 53°F

Other useful seasonal weather averages in april:

  • Outside temperature: 44°F to 55°F
  • Most common weather: "Cloudy"
  • The wind blows at 2.5mph
  • It rains a total of 1.2in, over 2 day(s).

Should we swim in Cardiff in april?

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

You won't be able to swim in Cardiff in april! The water temperature is freezing, reaching as low as 48°F (and only 53°F at best)! Our advice: if you are going to Cardiff this month, plan to sightsee and forget the beach!

Note also that in april, the climate is tolerable with an average outside temperature of 49°F, 1.2in of precipitation (over 2 days) and 88.35 % humidity.

Water and normal seasonal temperatures in Cardiff in april

April
Average sea temperature 50°F
Minimum sea temperature 48°F
Maximum sea temperature 53°F
Average outside temperature 50°F
Maximum outside temperature 56°F
Minimum outside temperature 45°F
Wind speed 13.7mph
Wind temperature 40°F
Precipitation 1.2in
Number of days of rain 2 jour(s)
(6%)
Humidity 89%
Visibility in kilometers 9.32km
Cloud cover 46%
Our opinion freezing swimming

Swim elsewhere in Wales in april

City Average T° Max. T° Our opinion
Pembrokeshire in april50°F52°Ffreezing swimming
Swansea in april50°F52°Ffreezing swimming
Barmouth in april49°F51°Ffreezing swimming
Llandudno in april49°F51°Ffreezing swimming

Swim in Wales in april: sea temperature by city

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