Water temperature in Barry

This data the coastal Barry sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Barry

Water temperature in Barry today is 18.4°C. Based on our historical data over a period of ten years, the warmest water in this day in the Bristol Channel near Barry was recorded in 2022 and was 19.5°C, and the coldest was recorded in 2009 at 17.1°C. Sea water temperature in Barry is expected to drop to 17.3°C in the next 10 days. September average water temperature in Barry is 17.2°C, the minimum temperature is 14.8°C, and the maximum is 20°C.

Throughout the year, the water temperature in Barry does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of July, August, September, the water temperature warms up to 20°C and above. The average water temperature in Barry in winter reaches 7.8°C, in spring 9.9°C, in summer the average temperature rises to 17.4°C, and in autumn it is 14.5°C.

Barry water temperature now

The sea salinity in Barry is 31.36‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Barry for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Barry. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Barry. Data in table shown for 6 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Barry

Barry weather forecast

Current temperature and weather

Data in a table show Barry temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Barry.

0-3 h	3-6 h	6-9 h	9-12 h
13.5°C	12.8°C	12.6°C	16.2°C

12-15 h	15-18 h	18-21 h	21-24 h
17.8°C	17.6°C	16°C	14.9°C

Barry water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Barry. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Barry on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Barry

The nearest beaches and cities from Barry with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Jackson's Bay	18.3°C	18°C		0.63 m
Blue Anchor	18.2°C	17°C		0.5 m
Kewstoke	18.2°C	18°C		0.29 m
Southerndown	18.8°C	17°C		1 m
Rogerstone	17.8°C	18°C		0.32 m
Porlock	18.6°C	17°C		1.04 m
Porthcawl	18.7°C	17°C		1.17 m
Clevedon	17.9°C	18°C		0.29 m
Goldcliff	17.6°C	19°C		0.08 m
Rest Bay	18.6°C	17°C		1.17 m

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Barry Island Beach

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Our report for Barry 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.