Swim in Swansea in march 2025What is the temperature of the sea in in march?

Average sea temperature in Swansea in march 2025.

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

Minimum: 46°F

Average: 47°F

Maximum: 49°F

Other useful seasonal weather averages in march:

  • Outside temperature: 43°F to 50°F
  • Most common weather: "Cloudy"
  • The wind blows at 1.9mph
  • It rains a total of 3.6in, over 7 day(s).

Should we swim in Swansea in march?

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

You won't be able to swim in Swansea in march! The water temperature is freezing, reaching as low as 46°F (and only 49°F at best)! Our advice: if you are going to Swansea this month, plan to sightsee and forget the beach!

Note also that in march, the climate is bad with an average outside temperature of 46°F, 3.6in of precipitation (over 7 days) and 86.29 % humidity.

Water and normal seasonal temperatures in Swansea in march

March
Average sea temperature 47°F
Minimum sea temperature 46°F
Maximum sea temperature 49°F
Average outside temperature 47°F
Maximum outside temperature 50°F
Minimum outside temperature 43°F
Wind speed 16.8mph
Wind temperature 38°F
Precipitation 3.6in
Number of days of rain 7 jour(s)
(21%)
Humidity 87%
Visibility in kilometers 9.13km
Cloud cover 52%
Our opinion freezing swimming

Swim elsewhere in Wales in march

City Average T° Max. T° Our opinion
Cardiff in march48°F50°Ffreezing swimming
Pembrokeshire in march47°F49°Ffreezing swimming
Barmouth in march47°F49°Ffreezing swimming
Llandudno in march46°F48°Ffreezing swimming

Swim in Wales in march: sea temperature by city

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