Water temperature in Plage de la Source

This data the coastal Plage de la Source 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 Plage de la Source

Water temperature in Plage de la Source today is 17.5°C. Based on our historical data over a period of ten years, the warmest water in this day in the Bay of Biscay near Plage de la Source was recorded in 2023 and was 19.5°C, and the coldest was recorded in 2012 at 16.5°C. Sea water temperature in Plage de la Source is expected to drop to 16.8°C in the next 10 days. September average water temperature in Plage de la Source is 18.3°C, the minimum temperature is 15.9°C, and the maximum is 22.1°C.

The swimming season in Plage de la Source lasts from July to August. During those months, Plage de la Source water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Plage de la Source in winter reaches 9.4°C, in spring 12.4°C, in summer the average temperature rises to 18.9°C, and in autumn it is 15.8°C.

Plage de la Source water temperature now

The sea salinity in Plage de la Source is 31.71‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Plage de la Source 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 Plage de la Source. 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 Plage de la Source. 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 Plage de la Source

Plage de la Source weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
10.6°C	9°C	8.6°C	12.7°C

12-15 h	15-18 h	18-21 h	21-24 h
16.7°C	18.6°C	16.7°C	14.3°C

Plage de la Source water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Plage de la Source. 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 Plage de la Source 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 Plage de la Source

The nearest beaches and cities from Plage de la Source 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
Plage de la Birochere	17.5°C	19°C		0.21 m
Plage du Porteau	17.5°C	19°C		0.21 m
Plan d'eau Maurice Giros	17.5°C	18°C		0.17 m
Pointe Saint-Gildas	17.7°C	19°C		0.27 m
Plage des Dames	17.6°C	17°C		0.31 m
Prefailles	17.7°C	19°C		0.29 m
Barbatre	17.6°C	17°C		0.46 m
L'Herbaudiere Port	17.8°C	17°C		0.41 m
La Barre De Monts	17.5°C	17°C		0.35 m
Fromentine	17.5°C	17°C		0.35 m

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Our report for Plage de la Source 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.