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Lake Geneva

Lake Geneva Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Lake Geneva, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Lake Water Temperature Information

22.7°C

TODAY

23.0°C

YESTERDAY

23.0°C

A WEEK AGO

As of today, the minimum water temperature in the Lake Geneva ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Lake Geneva Over the Last 30 Days

Today the water temperature in Lake Geneva is lower than the same day in previous years. The water temperature range here in August is from 20°C to 26°C. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Lake Geneva are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Aug 1523.0°C22.9°C
Aug 1623.5°C22.9°C
Aug 1723.6°C22.9°C
Aug 1823.7°C22.9°C
Aug 1924.1°C22.9°C
Aug 2023.2°C22.9°C
Aug 2123.0°C22.9°C
Aug 2222.7°C22.9°C
Aug 2322.9°C22.7°C
Aug 2422.9°C22.7°C
Aug 2522.9°C22.7°C
Aug 2622.9°C22.7°C
Aug 2722.9°C22.7°C
Aug 2822.9°C22.7°C
Aug 2922.9°C22.7°C
Aug 3022.9°C22.7°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Lake Geneva by Month

January

MinimumAverageMaximum
6°C8.5°C11°C

February

MinimumAverageMaximum
6°C7°C8°C

March

MinimumAverageMaximum
6°C7.2°C9°C

April

MinimumAverageMaximum
6°C9.5°C13°C

May

MinimumAverageMaximum
11°C13.6°C17°C

June

MinimumAverageMaximum
17°C19.9°C24°C

July

MinimumAverageMaximum
20°C22.7°C28°C

August

MinimumAverageMaximum
20°C22.9°C26°C

September

MinimumAverageMaximum
17°C20.1°C25°C

October

MinimumAverageMaximum
12°C15°C18°C

November

MinimumAverageMaximum
9°C11.8°C14°C

December

MinimumAverageMaximum
7°C9°C11°C

Monthly Water Temperature Histogram for Lake Geneva

Water Temperature in Cities and Towns on Lake Geneva

Switzerland
21.5°C
Pregny-Chambésy
Switzerland
21.7°C
Bellevue
Switzerland
21.8°C
Genthod
Switzerland
21.5°C
Coppet
Switzerland
22.0°C
Switzerland
21.8°C
Prangins
Switzerland
22.5°C
Gland
Switzerland
22.7°C
Rolle
Switzerland
23.1°C
Buchillon
Switzerland
23.1°C
Switzerland
23.0°C
Saint-Sulpice
Switzerland
22.6°C
Switzerland
22.8°C
La Tour-de-Peilz
Switzerland
22.1°C
Switzerland
22.7°C
Villeneuve
Switzerland
22.0°C
Port-Valais
Switzerland
22.0°C
Saint-Gingolph
France
22.2°C
France
22.8°C
France
22.6°C
Neuvecelle
France
22.4°C
France (Auvergne-Rhône-Alpes)
22.7°C
France (Auvergne-Rhône-Alpes)
22.7°C
Anthy-sur-Léman
France (Auvergne-Rhône-Alpes)
22.1°C
Sciez
France (Auvergne-Rhône-Alpes)
21.8°C
Excenevex
France (Auvergne-Rhône-Alpes)
21.8°C
France (Auvergne-Rhône-Alpes)
22.8°C
Nernier
France (Auvergne-Rhône-Alpes)
22.1°C
France (Auvergne-Rhône-Alpes)
22.3°C
France (Auvergne-Rhône-Alpes)
22.0°C
Hermance
Switzerland (Auvergne-Rhône-Alpes)
21.5°C
Anières
Switzerland
21.4°C
Collonge-Bellerive
Switzerland
21.3°C
Cologny
Switzerland
21.5°C
France (Auvergne-Rhône-Alpes)
22.6°C

Known Beaches in the Area of Lake Geneva?

Ladies Bath

Ladies Bath is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Lake Geneva.

Allaman Beach

Allaman Beach is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Lake Geneva.

Lake Geneva Weather

AUGUST 23

16°C / 23°C
overcast

rain: 0% | wind: 21 km/h

AUGUST 24

15°C / 23°C
overcast

rain: 0% | wind: 21 km/h

AUGUST 25

15°C / 26°C
overcast

rain: 14% | wind: 11 km/h

AUGUST 26

17°C / 29°C
slight rain

rain: 40% | wind: 14 km/h

AUGUST 27

19°C / 20°C
slight thunderstorm

rain: 42% | wind: 6 km/h

Water Temperature in Lake Geneva: General Trends and Swimming Opportunities

Original name of the lake: Lac Léman, Genfersee, Lago Lemano

Lake type: Glacial lake
Primary inflows: Rhône, Dranse
Primary outflows: Rhône
Catchment area: 7,975 square kilometres (3,079 sq mi)
Basin countries: Switzerland, France
Max. length: 73 km (45 mi)
Max. width: 14 km (8.7 mi)
Surface area: 580.03 km2 (224 sq mi)
Average depth: 153.4 metres (503 feet)
Max. depth: 310 metres (1,020 feet)
Water volume: 89 km3 (72 million acre⋅ft; 21 cu mi)
Residence time: 11.4 years
Shore length1: 156 km (97 mi)
Surface elevation

Lake Geneva, straddling the border between Switzerland and France, offers a variety of swimming opportunities, especially during the warmer months. In June, water temperatures typically reach around 18.4°C (65.1°F), which may be slightly cool for some swimmers but generally acceptable for a refreshing dip. As the summer progresses into August, the lake warms further, with temperatures averaging between 21.2°C (70.2°F) and 22.6°C (72.7°F), providing more comfortable conditions for swimming and other water activities.

The lake's extensive shoreline features numerous public beaches and designated swimming areas, catering to both locals and tourists. Popular spots include the Bains des Pâquis in Geneva and the Plage de Vidy in Lausanne, both offering amenities such as changing facilities, lifeguards, and recreational areas. These locations become particularly vibrant during the peak summer months, as swimmers take advantage of the pleasant water temperatures and scenic surroundings.

It's important to note that outside of the summer season, Lake Geneva's water temperature decreases significantly. In the winter months, temperatures can drop to around 6°C (43°F), making swimming less appealing except for the most enthusiastic cold-water swimmers. Therefore, for those seeking a comfortable swimming experience, the period from late June to early September is ideal, when the water is warmest and the lakeside facilities are fully operational.

Geographical Location of Lake Geneva

Frequently Asked Questions About Lake Geneva and its Water Temperatures

What is the current water temperature in Lake Geneva?

The water temperature today in Lake Geneva ranges from 70°F (21.3°C) to 74°F (23.1°C).

What is the water temperature in Lake Geneva during the summer months?

The average water temperature in Lake Geneva during the summer months is typically between 68°F to 73°F (20°C to 23°C), and it can reach up to 82°F (28°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Lake Geneva in May?

The average water temperature in Lake Geneva in May ranges from 52°F to 63°F (11°C to 17°C).

What is the water temperature in Lake Geneva in September?

The average water temperature in Lake Geneva in September is typically between 63°F to 77°F (17°C to 25°C).

Is it possible to swim in Lake Geneva and what are the possibilities for this?

Yes, it is possible to swim in Lake Geneva, Switzerland. There are numerous accessible public beaches and swimming pools alongside this lake for facilitated swimming activities.

What are the coordinates of Lake Geneva?

Lake Geneva is located at coordinates 46.4340°N 6.4440°E.