World sea water temperatures

Water temperature in Coppet

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This data the coastal Coppet 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 water temperature in Coppet

Water temperature in Coppet today is 20.3°C. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Geneva near Coppet was recorded in 2022 and was 22.7°C, and the coldest was recorded in 2012 at 18.4°C. Water temperature in Coppet is expected to drop to 19.2°C in the next 10 days. September average water temperature in Coppet is 19.2°C, the minimum temperature is 16.1°C, and the maximum is 23.4°C.

The swimming season in Coppet lasts from July to September. During those months, Coppet water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Coppet in winter reaches 9.4°C, in spring 11.3°C, in summer the average temperature rises to 20°C, and in autumn it is 16°C.

Coppet water temperature now


5 September 2025
today temp
20.3°C
4 September 2025
yesterday temp
20.2°C


Current temperature and weather

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

0-3 h3-6 h6-9 h9-12 h
11.9°C11.6°C11.1°C15.5°C
12-15 h15-18 h18-21 h21-24 h
20°C20.5°C17.6°C11.1°C

You may also be interested in other sections of our site for Coppet: Sunrise and Sunset, Tides

Coppet water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Coppet. 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 Coppet 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

MonthAvrMinMax
January9.1°C6.9°C10.5°Ccold
Water temperature in Coppet in January
February8.4°C6.4°C9.3°Ccold
Water temperature in Coppet in February
March8.8°C6.4°C10.7°Ccold
Water temperature in Coppet in March
April11.1°C8.1°C14.3°Ccold
Water temperature in Coppet in April
May14°C10.9°C18.9°Ccold
Water temperature in Coppet in May
June17.8°C12.6°C24.1°Ccold
Water temperature in Coppet in June
July20.9°C16.8°C24.9°Cwarm
Water temperature in Coppet in July
August21.2°C18.1°C25.9°Cwarm
Water temperature in Coppet in August
September19.2°C16.1°C23.4°Ccold
Water temperature in Coppet in September
October15.8°C13.6°C19.8°Ccold
Water temperature in Coppet in October
November12.9°C11.1°C15°Ccold
Water temperature in Coppet in November
December10.7°C8.6°C12.8°Ccold
Water temperature in Coppet in December

Chart monthly average water temperature in Coppet

Water temperature in Coppet

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from Coppet 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

WaterWeatherWave
Sciez21.2°C19°C 
Thonon-les-Bains21.2°C17°C 
Morges21°C18°C 
Evian-les-Bains20.8°C18°C 
Lausanne20.8°C18°C 
Vevey21°C18°C 
Bourg-en-Lavaux21°C18°C 
Montreux21.2°C16°C 
Radolfzell20.8°C18°C 
Allensbach20.8°C18°C 

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Coppet 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.

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