Temperature:

Your Favorite Locations:

Your favorites list is empty.

Sihlsee — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Sihlsee, trends, monthly ranges and the forecast for the coming days.

Sihlsee, Switzerland
Sihlsee, Switzerland © By Roland zh, CC BY-SA 3.0

Current Water Temperature

20.1°C
Today
19.6°C
Yesterday
20.3°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Sihlsee today is 20.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature 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.

Water Temperature Chart Over the Last 30 Days

From August 20 to September 20

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1320.3°C18.9°C
SEP 1419.9°C18.9°C
SEP 1520.8°C18.9°C
SEP 1620.8°C18.9°C
SEP 1720.7°C18.9°C
SEP 1820.5°C18.9°C
SEP 1919.6°C18.9°C
SEP 2020.2°C18.9°C
SEP 2118.9°C20.0°C
SEP 2218.9°C20.0°C
SEP 2318.9°C19.9°C
SEP 2418.9°C19.9°C
SEP 2518.9°C19.8°C
SEP 2618.9°C19.7°C
SEP 2718.9°C19.7°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
January0°C2°C4°C
February0°C1°C4°C
March0°C4°C7°C
April4°C9°C14°C
May11°C16°C21°C
June17°C21°C25°C
July20°C23°C28°C
August21°C24°C27°C
September16°C19°C24°C
October10°C13°C16°C
November4°C8°C11°C
December0°C2°C5°C

Sihlsee: Water Temperature by Location

Sihlsee: Weather Forecast

September 21

° / °
overcast
rain: 0% | wind:

September 22

° / °
mainly clear
rain: 0% | wind:

September 23

° / °
overcast
rain: 4% | wind:

September 24

° / °
partly cloudy
rain: 13% | wind:

September 25

° / °
overcast
rain: 0% | wind:

September 26

° / °
partly cloudy
rain: 0% | wind:

Location & Local Information

Type: reservoir
Primary inflows: Sihl, Minster
Primary outflows: Sihl
Basin countries: Switzerland
Max. length: 8.5 kilometres (5 mi)
Max. width: 2.5 kilometres (2 mi)
Surface area: 11.3 km2 (4.4 sq mi)
Max. depth: 17 metres (56 ft)
Water volume: 96 million cubic metres (78,000 acre⋅ft)
Surface elevation: 889 metres (2,917 ft)

Sihlsee is an artificial lake located in the canton of Schwyz, Switzerland. Created in the 1930s as a reservoir, it is now a popular destination for both locals and tourists. The lake is surrounded by beautiful landscapes and offers numerous recreational activities such as sailing, fishing, and hiking. The Sihlsee is also known for its rich biodiversity and is home to various bird species.

The water temperature in Sihlsee varies significantly throughout the year, making it suitable for swimming mainly during the summer months. The lake is a serene spot for relaxation and enjoying nature.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Sihlsee?
Water Temperature in Sihlsee today is 20.1°C.
What is the water temperature in Sihlsee during the summer months?
The water temperature in Sihlsee in summer fluctuates in the range of 17°C - 28°C.
Is it possible to swim in Sihlsee and what are the possibilities for this?
Yes, it is possible to swim in Sihlsee, Switzerland. You can freely access the lake from surrounding public beaches and lidos, while obeying safety and environmental regulations.