Water temperature in Ile-de-Brehat

This data the coastal Ile-de-Brehat 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 Ile-de-Brehat

Water temperature in Ile-de-Brehat today is 17.5°C. Based on our historical data over a period of ten years, the warmest water in this day in the La Manche near Ile-de-Brehat was recorded in 2022 and was 18.4°C, and the coldest was recorded in 2015 at 16.9°C. Sea water temperature in Ile-de-Brehat is expected to drop to 17°C in the next 10 days. September average water temperature in Ile-de-Brehat is 18°C, the minimum temperature is 16.5°C, and the maximum is 20.1°C.

Throughout the year, the water temperature in Ile-de-Brehat does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of August, the water temperature warms up to 20°C and above. The average water temperature in Ile-de-Brehat in winter reaches 10.1°C, in spring 10.6°C, in summer the average temperature rises to 16.8°C, and in autumn it is 16.1°C.

Ile-de-Brehat water temperature now

The sea salinity in Ile-de-Brehat is 34.74‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Ile-de-Brehat 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 Ile-de-Brehat. 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 Ile-de-Brehat. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Ile-de-Brehat

Ile-de-Brehat weather forecast

Current temperature and weather

Data in a table show Ile-de-Brehat temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Ile-de-Brehat.

0-3 h	3-6 h	6-9 h	9-12 h
14.6°C	13.8°C	13.5°C	14°C

12-15 h	15-18 h	18-21 h	21-24 h
15.2°C	15.2°C	14.9°C	13.6°C

Ile-de-Brehat water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Ile-de-Brehat. 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 Ile-de-Brehat 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 Ile-de-Brehat

The nearest beaches and cities from Ile-de-Brehat 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
Pleubian	17.1°C	15°C		0.35 m
Brehec	17.5°C	16°C		0.4 m
Plougrescant	17°C	15°C		0.36 m
Trestel	16.9°C	16°C		0.36 m
Trelevern	16.9°C	16°C		0.36 m
Perros Guirec	16.5°C	16°C		0.44 m
Ploumanach	16.5°C	16°C		0.44 m
Pleneuf Val Andre	17.5°C	16°C		0.37 m
Saint-Brieuc	17.5°C	16°C		0.34 m
Tregastel	16.3°C	16°C		0.56 m

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Our report for Ile-de-Brehat 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.