Water temperature in Royan

This data the coastal Royan 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 Royan

Water temperature in Royan today is 20.9°C. Based on our historical data over a period of ten years, the warmest water in this day in the Bay of Biscay near Royan was recorded in 2022 and was 23.2°C, and the coldest was recorded in 2007 at 18.8°C. Sea water temperature in Royan is expected to drop to 19.8°C in the next 10 days. September average water temperature in Royan is 19.8°C, the minimum temperature is 17.1°C, and the maximum is 23.3°C.

The swimming season in Royan lasts from June to September. During those months, Royan water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Royan in winter reaches 10.2°C, in spring 13.1°C, in summer the average temperature rises to 20.2°C, and in autumn it is 17°C.

Royan water temperature now

The sea salinity in Royan is 23.96‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Royan 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 Royan. 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 Royan. 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 Royan

Royan weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
18°C	17.6°C	17°C	18°C

12-15 h	15-18 h	18-21 h	21-24 h
20°C	21.3°C	21.4°C	19.3°C

Royan water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Royan. 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 Royan 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 Royan

The nearest beaches and cities from Royan 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
Meschers Sur Gironde	20.9°C	21°C		0.72 m
Saint Georges De Didonne	21.1°C	21°C		0.72 m
Le Verdon-sur-Mer	20.8°C	21°C		0.55 m
Vaux-sur-Mer	21.1°C	21°C		0.98 m
La Grande Cote	21°C	21°C		0.98 m
Talmont sur Gironde	20.6°C	25°C		0.55 m
Saint Palais Sur Mer	20.9°C	21°C		1.18 m
La Palmyre	20.7°C	21°C		1.18 m
Les Mathes	20.7°C	21°C		1.18 m
Phare de La Coubre	20.6°C	21°C		1.18 m

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Our report for Royan 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.