Lake Leman

Lake Alpine lake (Lac Léman) between Switzerland and France

Lake Leman (Lake Geneva) borders Switzerland and France; visitors stroll lakeside promenades in Geneva and Lausanne, take boat cruises and visit the terraced vineyards of Lavaux.

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Lake Leman (Lac Léman) is a large glacial lake on the border between Switzerland and France, with the city of Geneva at its western tip. The lake is about 73 km long and covers roughly 580 km2, making it one of western Europe’s major inland waters.

Shorelines host several well-known towns and cultural attractions. Geneva and Lausanne provide urban promenades, museums and boat services; the Montreux area features waterfront promenades and the well-known medieval castle located on a rocky islet. The terraced wine region on the lake’s northern shore is a distinctive landscape of vineyards and villages.

The basin formed after the last glaciation and has been settled since Roman times; medieval and later regional powers built castles and towns along the shores. Many lakeside towns expanded in the 18th and 19th centuries as travel, trade and later tourism increased.

The lake lies between the Swiss cantons on the northern and eastern shores and the French Haute-Savoie on the southern shore, with Geneva at the lake’s western end and broad alpine foothills rising from much of the Swiss shoreline.

  • Size and transport: The lake is about 73 km long and covers roughly 580 km2, with a maximum depth near 310 m; ferry and boat services connect towns along both Swiss and French shores.
  • Viewpoints: Popular viewpoints include the lakeside promenades at Geneva, the terraced vineyards of Lavaux east of Lausanne, and the Montreux waterfront near the historic castle.

What to See #

  • Château de Chillon: Sits on a small rocky islet near Montreux and contains fortified medieval structures with origins in the 12th century; it is one of the lake's best-known historic landmarks.
  • Lavaux vineyards: Terraced vineyards on the northern shore cultivated for centuries and inscribed as a UNESCO World Heritage site for their landscape shaped by wine production.
  • Geneva and Lausanne: Urban waterfronts, promenades and transport hubs of major lakeside cities, including a global diplomatic and transport node at the lake's southwestern tip.
Lake Leman
Lake Léman (Lake Geneva) - on the border of Switzerland and France
46.4377, 6.4691

How to Get to Lake Leman #

Lake Léman (Lake Geneva) is served by frequent Swiss Federal Railways (SBB/CFF) trains to Geneva, Lausanne and other lakeside towns along the Lausanne-Geneva-Montreux corridor. Geneva Airport has direct rail and tram/bus links to Geneva Cornavin station; from Cornavin it’s a short walk to the lakeside (central lakeshore attractions are within about a 10-20 minute walk from the main station). Driving access is via the A1 motorway which runs along much of the northern lakeshore.

Tips for Visiting Lake Leman #

  • Use the CGN public steamers and ferries to travel between Geneva, Lausanne, Vevey and Montreux - midweek sailings and early-morning departures are quieter and give uninterrupted lake panoramas.
  • Explore smaller lakeside towns such as Nyon or Ouchy (Lausanne) outside peak hours to avoid cruise-ship and day-trip crowds that concentrate in Geneva and Montreux.

Best Time to Visit Lake Leman #

Visit Lake Leman from late spring through early autumn for the most pleasant weather and full access to lakeside activities.

Late spring to summer
May-September · 10-28 °C
Warm, sunny and ideal for lakeside promenades, boat trips and outdoor dining around Lake Leman.
Shoulder seasons
April and October · 6-18 °C
Fewer tourists and pleasant conditions for sightseeing in Geneva and lakeside towns; some alpine excursions may be limited.
Winter
November-March · -2-10 °C
Cool and quieter; lake cruises run less frequently and mountain snow activities take precedence inland.

Weather & Climate near Lake Leman #

Climate

Lake Leman's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from 1°C to 24°C. Abundant rainfall (1079 mm/year), wettest in June, distributed fairly evenly throughout the year.

Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
36°
Warmest Month
-20°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 5°C and lows of 1°C. Regular rainfall (81 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

81 mm
Rainfall
1.9 m/s
Wind
Calm
0.1
UV Index
Low
8.9h daylight

February

February is cold with highs of 6°C and lows of 1°C. Moderate rainfall (79 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

79 mm
Rainfall
2.1 m/s
Wind
Calm
0.3
UV Index
Low
10.2h daylight

March

March is cold with highs of 10°C and lows of 2°C. Moderate rainfall (71 mm) and partly cloudy skies.

57 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
82%
Humidity
Very Humid

Weather

71 mm
Rainfall
2.3 m/s
Wind
Calm
0.6
UV Index
Moderate
11.8h daylight

April

April is cold with highs of 13°C and lows of 5°C. Regular rainfall (80 mm) and partly cloudy skies.

55 Acceptable

Comfort

Feels Like Cold
C
Temperature
13°
78%
Humidity
Very Humid

Weather

80 mm
Rainfall
2.3 m/s
Wind
Calm
1.0
UV Index
High
13.4h daylight

May

May is cool with highs of 18°C and lows of 9°C. Regular rainfall (92 mm) and mostly overcast skies.

61 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
18°
78%
Humidity
Very Humid

Weather

92 mm
Rainfall
2.0 m/s
Wind
Calm
1.4
UV Index
High
14.8h daylight

June

June is cool with highs of 21°C and lows of 12°C. The wettest month with heavy rain (114 mm) and partly cloudy skies.

65 Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 21°
75%
Humidity
Very Humid

Weather

114 mm
Rainfall
2.0 m/s
Wind
Calm
1.7
UV Index
Very High
15.6h daylight

July

July is the warmest month with highs of 24°C and lows of 15°C. Regular rainfall (90 mm) and partly cloudy skies.

75 Very Good

Comfort

20°
Feels Like Mild
20°C
Temperature
15° 24°
70%
Humidity
Very Humid

Weather

90 mm
Rainfall
1.9 m/s
Wind
Calm
1.8
UV Index
Very High
15.2h daylight

August

August is mild with highs of 24°C and lows of 15°C. Regular rainfall (90 mm) and partly cloudy skies.

75 Very Good

Comfort

19°
Feels Like Mild
19°C
Temperature
15° 24°
70%
Humidity
Very Humid

Weather

90 mm
Rainfall
1.7 m/s
Wind
Calm
1.5
UV Index
High
14.0h daylight

September

September is cool with highs of 20°C and lows of 12°C. Significant rainfall (101 mm) and partly cloudy skies.

65 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
12° 20°
75%
Humidity
Very Humid

Weather

101 mm
Rainfall
1.6 m/s
Wind
Calm
1.0
UV Index
Moderate
12.4h daylight

October

October is cool with highs of 14°C and lows of 8°C. Regular rainfall (98 mm) and partly cloudy skies.

57 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
15°
81%
Humidity
Very Humid

Weather

98 mm
Rainfall
1.7 m/s
Wind
Calm
0.5
UV Index
Moderate
10.7h daylight

November

November is cold with highs of 9°C and lows of 4°C. Regular rainfall (95 mm) and mostly overcast skies.

51 Acceptable

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

95 mm
Rainfall
1.8 m/s
Wind
Calm
0.2
UV Index
Low
9.3h daylight

December

December is cold with highs of 6°C and lows of 2°C. Regular rainfall (88 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

88 mm
Rainfall
2.0 m/s
Wind
Calm
0.1
UV Index
Low
8.5h daylight

Nearby Attractions to Lake Leman