Lake Constance

Lake Large Central European lake bordering Germany, Austria, Switzerland

Lake Constance borders Germany, Switzerland and Austria; tourists cycle the lake road, use ferries between towns like Konstanz and Meersburg, and enjoy sailing and lakeside promenades.

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Lake Constance, locally called the Bodensee, is a large lake on the Rhine shared by Germany, Switzerland and Austria, with much of the German shoreline in Baden-Württemberg and Bavaria. The lake is typically described as two basins - the larger Obersee and the smaller Untersee - linked by the stretch of water around the city of Constance.

The lake covers roughly 536 square kilometres and supports a busy system of ferry routes, lakeside towns and recreational boating. Key German towns on the northern and northwestern shores include Konstanz and Friedrichshafen, which serve as transport hubs and gateways for tourism.

Lake Constance has long been important for regional transport, fishing and tourism, with promenades, cycling routes and historic towns along its shorelines. The lake’s water balance is driven by inflow from the Alpine Rhine and outflow back into the Rhine downstream of Konstanz.

The lake lies along the tripoint region of central Europe, with easy access from cities such as Stuttgart and Munich by road or rail to the German shores.

  • Size and international borders: Also known as the Bodensee, the lake covers a surface area of roughly 536 square kilometres and forms an international border region between Germany, Switzerland and Austria.

What to See #

  • Upper and Lower basins (Obersee and Untersee): Obersee and Untersee - the lake is commonly described in two connected basins, the larger Upper Lake (Obersee) and the smaller Lower Lake (Untersee) separated by the Constance Bay area and several waterways.
  • Major towns and ports: Major lakeside towns and ports such as Konstanz and Friedrichshafen on the German shore provide ferry services, marinas and transport links across the lake.
Lake Constance
Lake Constance (Bodensee) - on the border of Germany, Austria and Switzerland
47.5833, 9.4667

How to Get to Lake Constance #

Lake Constance (Bodensee) is served by several lakeside towns. Arrive by train to major lakeside hubs such as Konstanz (Deutsche Bahn and Swiss connections), Friedrichshafen or Lindau (regional and IC services). The German A96 motorway serves the southern/eastern approaches toward Lindau; once at a lakeside town you can use local buses, regional trains and ferries to hop between towns (many ferry routes operate between Swiss, German and Austrian shores).

Tips for Visiting Lake Constance #

  • Use the region's frequent car and foot ferries to hop between German, Swiss and Austrian towns - early crossings (before 10:00) avoid midday crowds and give the best uninterrupted lake views.
  • Skip the busiest hubs (Konstanz, Lindau) at peak season and explore smaller towns such as Meersburg or Überlingen for quieter waterfront promenades and less busy harbors.
  • If you plan to cycle, follow the well-marked Bodensee-Radweg (Lake Constance cycle path) and start sections early in the day to dodge tourist groups and afternoon winds that can make crossings choppier.

Best Time to Visit Lake Constance #

Visit Lake Constance from late spring to early autumn for warm weather, boat services and outdoor activities.

Late spring to summer
May-September · 10-28 °C
Warmest, reliably pleasant weather for boating, swimming and lakeside activities; busiest tourist season.
Shoulder seasons
April and October · 6-18 °C
Fewer crowds and pleasant days for cycling and hiking around the lake; some boat services may have reduced schedules.
Winter
November-March · -2-8 °C
Cold and quieter; many water activities are off-season and some attractions have limited hours.

Weather & Climate near Lake Constance #

Climate

Lake Constance's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from 0°C to 23°C. Abundant rainfall (1067 mm/year), wettest in June.

Temperature & Rainfall
Temperature Range
23°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 4°C and lows of 0°C. Moderate rainfall (56 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

56 mm
Rainfall
2.0 m/s
Wind
Calm

February

February is cold with highs of 5°C and lows of 0°C. Moderate rainfall (60 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

60 mm
Rainfall
2.1 m/s
Wind
Calm

March

March is cold with highs of 8°C and lows of 2°C. Moderate rainfall (62 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

62 mm
Rainfall
2.3 m/s
Wind
Calm

April

April is cold with highs of 12°C and lows of 5°C. Regular rainfall (85 mm).

Comfort

Feels Like Cold
C
Temperature
12°

Weather

85 mm
Rainfall
2.2 m/s
Wind
Calm

May

May is cool with highs of 17°C and lows of 10°C. Significant rainfall (104 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
10° 17°

Weather

104 mm
Rainfall
2.1 m/s
Wind
Calm

June

June is cool with highs of 20°C and lows of 13°C. The wettest month with heavy rain (130 mm).

Comfort

17°
Feels Like Cool
17°C
Temperature
13° 20°

Weather

130 mm
Rainfall
2.0 m/s
Wind
Calm

July

July is the warmest month with highs of 23°C and lows of 15°C. The wettest month with heavy rain (130 mm).

Comfort

19°
Feels Like Mild
19°C
Temperature
15° 23°

Weather

130 mm
Rainfall
1.9 m/s
Wind
Calm

August

August is mild with highs of 22°C and lows of 15°C. Significant rainfall (118 mm).

Comfort

19°
Feels Like Mild
19°C
Temperature
15° 23°

Weather

118 mm
Rainfall
1.8 m/s
Wind
Calm

September

September is cool with highs of 18°C and lows of 12°C. Regular rainfall (91 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 19°

Weather

91 mm
Rainfall
1.8 m/s
Wind
Calm

October

October is cool with highs of 13°C and lows of 8°C. Moderate rainfall (75 mm).

Comfort

10°
Feels Like Cool
10°C
Temperature
13°

Weather

75 mm
Rainfall
1.7 m/s
Wind
Calm

November

November is cold with highs of 7°C and lows of 3°C. Regular rainfall (85 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

85 mm
Rainfall
1.9 m/s
Wind
Calm

December

December is cold with highs of 5°C and lows of 1°C. Moderate rainfall (71 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

71 mm
Rainfall
2.0 m/s
Wind
Calm

Nearby Attractions to Lake Constance