Celtic Sea water temperature today

Water temperature all along the Celtic Sea coast is not yet warm enough for swimming and does not exceed 20°C. The warmest water temperature Celtic Sea today is 18.3°C (in Plougastel-Daoulas, France), and the coldest Celtic Sea surface temperature now is 15.1°C (in Owenahincha, Ireland).

Celtic Sea coastal surface water temperature

The table below shows some of the cities on the Celtic Sea coast with the values of sea surface temperature today and yesterday. Also indicated are the maximum and minimum water temperatures that were recorded this month for the last ten years. To see the details, select the country and then the city of your interest. Besides water temperature, you can also get information about the weather for today, tomorrow and the upcoming days, surf forecast, as well as the data on sunrise/sunset and moonrise/moonset at a given point on any given day.

 

today

yesterday

minimum

maximum

weather

Cork

16.6°C

16.5°C

13.4°C

18.8°C

16°C 

Kilmore Quay

16.6°C

16.6°C

14°C

17.2°C

16°C 

Newquay

17.5°C

17.5°C

14.5°C

17.5°C

17°C 

Penzance

16.6°C

16.9°C

13.9°C

17.8°C

17°C 

Porspoder

16.5°C

16.3°C

13.6°C

16.6°C

18°C 

Swansea

18.4°C

18.6°C

15.3°C

19.9°C

17°C 

Countries bordering the Celtic Sea

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Our report for Celtic Sea is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.