Lake Constance — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Constance, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Constance today is 40°F.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters. 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.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| FEB 1 | 38°F | 41°F | |
| FEB 2 | 38°F | 41°F | |
| FEB 3 | 39°F | 41°F | |
| FEB 4 | 39°F | 41°F | |
| FEB 5 | 40°F | 41°F | |
| FEB 6 | 39°F | 41°F | |
| FEB 7 | 39°F | 41°F | |
| FEB 8 | 40°F | 41°F | |
| FEB 9 | 41°F | 40°F | |
| FEB 10 | 41°F | 40°F | |
| FEB 11 | 41°F | 40°F | |
| FEB 12 | 41°F | 40°F | |
| FEB 13 | 41°F | 40°F | |
| FEB 14 | 41°F | 40°F | |
| FEB 15 | 41°F | 40°F |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 36°F | 39°F | 43°F |
| February | 37°F | 41°F | 43°F |
| March | 39°F | 42°F | 50°F |
| April | 39°F | 47°F | 55°F |
| May | 46°F | 55°F | 63°F |
| June | 59°F | 66°F | 73°F |
| July | 63°F | 68°F | 75°F |
| August | 66°F | 73°F | 79°F |
| September | 57°F | 64°F | 73°F |
| October | 50°F | 57°F | 64°F |
| November | 39°F | 45°F | 50°F |
| December | 36°F | 39°F | 43°F |
Lake Constance: Water Temperature by Location
Lake Constance: Weather Forecast
February 9
February 10
February 11
February 12
February 13
Location & Local Information
Type: glacial lake
Part of: Rhine
Primary inflows: Alpine Rhine
Primary outflows: High Rhine
Catchment area: 11,500 km2 (4,400 sq mi)
Basin countries: Germany, Switzerland, Austria
Max. length: 63 km (39 mi)
Max. width: 14 km (8.7 mi)
Surface area: 536 km2 (207 sq mi)
Average depth: 90 m (300 ft)
Max. depth: 251 m (823 ft)
Water volume: 48 km3 (12 cu mi; 39,000,000 acre⋅ft)
Residence time: 4.3 years
Shore length1: 273 km (170 mi)
Surface elevation: 395 m (1,296 ft)
Lake Constance (Bodensee), shared by Switzerland, Germany, and Austria, is one of Europe's largest freshwater lakes and a popular destination for recreation. The water temperature varies significantly throughout the year. In summer, the lake warms to 20°C to 25°C (68°F to 77°F), providing ideal conditions for swimming and other water activities. In spring and autumn, the temperature is cooler, generally ranging from 10°C to 18°C (50°F to 64°F). During winter, the water temperature drops further, often falling below 6°C (43°F).
Swimming in Lake Constance is a cherished activity, especially during summer. Numerous beaches and designated swimming areas, such as those in Rorschach, Romanshorn, and Arbon on the Swiss side, offer safe and scenic spots for taking a dip. The water quality of the lake is excellent, frequently tested and suitable for recreational activities. Swimmers should remain cautious of weather changes and currents, especially when venturing far from the shore. Besides swimming, the lake also offers opportunities for sailing, paddleboarding, and other water sports.