Lake Sarnen — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Sarnen, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Sarnen today is 18.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 6 | 19.4°C | 21.0°C | |
| JUN 7 | 18.9°C | 21.0°C | |
| JUN 8 | 18.1°C | 21.0°C | |
| JUN 10 | 20.0°C | 21.0°C | |
| JUN 11 | 18.0°C | 21.0°C | |
| JUN 12 | 17.5°C | 21.0°C | |
| JUN 13 | 17.5°C | 21.0°C | |
| JUN 14 | 21.0°C | 18.3°C | |
| JUN 15 | 21.0°C | 18.5°C | |
| JUN 16 | 21.0°C | 18.6°C | |
| JUN 17 | 21.0°C | 18.8°C | |
| JUN 18 | 21.0°C | 18.9°C | |
| JUN 19 | 21.0°C | 19.0°C | |
| JUN 20 | 21.0°C | 19.2°C |
* 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 | 4°C | 7°C | 9°C |
| February | 0°C | 3°C | 7°C |
| March | 0°C | 4°C | 8°C |
| April | 6°C | 10°C | 15°C |
| May | 12°C | 16°C | 21°C |
| June | 17°C | 21°C | 25°C |
| July | 20°C | 25°C | 29°C |
| August | 20°C | 24°C | 27°C |
| September | 15°C | 21°C | 26°C |
| October | 12°C | 15°C | 18°C |
| November | 7°C | 10°C | 13°C |
| December | 5°C | 7°C | 9°C |
Lake Sarnen: Water Temperature by Location
Lake Sarnen: Weather Forecast
June 14
June 15
June 16
June 17
June 18
Location & Local Information
Primary inflows: Aa, Grosse Melchaa, Dreiwässerkanal
Primary outflows: Sarner Aa
Basin countries: Switzerland
Max. length: 5.7 km (3.5 mi)[1]
Max. width: 1.6 km (0.99 mi)[1]
Surface area: 7.5 km2 (2.9 sq mi)
Average depth: 31 m (102 ft)
Max. depth: 51 m (167 ft)
Water volume: 0.239 cubic kilometres (194,000 acre⋅ft)
Residence time: 0.8 years
Surface elevation: 469 m (1,539 ft)
Lake Sarnen (Sarnersee) is a beautiful lake located in the canton of Obwalden, Switzerland. Covering an area of approximately 7.5 square kilometers (2.9 square miles), it is known for its serene atmosphere, surrounded by lush green hills and picturesque mountain views. The lake offers a variety of recreational activities, such as swimming, boating, fishing, and hiking. In the summer, the water temperature of Lake Sarnen typically ranges from 18°C to 22°C (64°F to 72°F), making it a pleasant destination for swimming and outdoor activities.