Water temperature in Coutances

This data the coastal Coutances 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 Coutances

Water temperature in Coutances today is 17°C. Based on our historical data over a period of ten years, the warmest water in this day in Coutances was recorded in 2023 and was 19.1°C, and the coldest was recorded in 2008 at 16.3°C. Sea water temperature in Coutances is expected to drop to 16.4°C in the next 10 days. September average water temperature in Coutances is 18.3°C, the minimum temperature is 16.3°C, and the maximum is 21.2°C.

The swimming season in Coutances lasts from July to August. During those months, Coutances water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Coutances in winter reaches 8.9°C, in spring 11°C, in summer the average temperature rises to 18.1°C, and in autumn it is 15.7°C.

Coutances water temperature now

The sea salinity in Coutances is 34.02‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Coutances 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 Coutances. 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 Coutances. Data in table shown for 30 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Coutances

Coutances weather forecast

Current temperature and weather

Data in a table show Coutances temperature today (30 September 2025). For more information and forecast for a few days, go to the weather forecast Coutances.

0-3 h	3-6 h	6-9 h	9-12 h
11.1°C	9.8°C	8.8°C	12.9°C

12-15 h	15-18 h	18-21 h	21-24 h
18.4°C	19.6°C	15.6°C	10.4°C

Coutances water temperature by month

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

The nearest beaches and cities from Coutances 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
Agon-Coutainville	17°C	20°C		0.16 m
Blainville-sur-Mer	17°C	20°C		0.16 m
Gouville-sur-Mer	16.8°C	20°C		0.12 m
Saint-Germain-sur-Ay	16.9°C	20°C		0.15 m
Pirou	16.9°C	20°C		0.15 m
Saint Martin de Brehal	17.3°C	17°C		0.15 m
Breville sur Mer	17.3°C	17°C		0.15 m
Coudeville sur Mer	17.3°C	17°C		0.15 m
Granville	17.2°C	17°C		0.15 m
Donville les Bains	17.2°C	17°C		0.15 m

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Our report for Coutances 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.