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Lake Sempach — Current Water Temperature, Annual Trends and Forecast

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

Lake Sempach, Switzerland
Lake Sempach, Switzerland © pixabay.com

Current Water Temperature

29.1°C
Today
29.2°C
Yesterday
28.9°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 Lake Sempach today is 29.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 July 13 to August 13

Table of Daily Sea Temperature Data

Date Current Average Forecast
AUG 629.3°C26.0°C
AUG 729.3°C26.0°C
AUG 828.5°C26.0°C
AUG 928.6°C26.0°C
AUG 1028.6°C26.0°C
AUG 1129.2°C26.0°C
AUG 1228.7°C26.0°C
AUG 1426.0°C28.9°C
AUG 1526.0°C28.8°C
AUG 1626.0°C28.6°C
AUG 1726.0°C28.5°C
AUG 1826.0°C28.3°C
AUG 1926.0°C28.2°C
AUG 2026.0°C28.0°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
January3°C6°C9°C
February3°C5°C7°C
March4°C6°C9°C
April6°C11°C16°C
May13°C18°C23°C
June19°C23°C27°C
July22°C25°C30°C
August22°C26°C30°C
September17°C22°C26°C
October10°C14°C17°C
November7°C10°C13°C
December4°C7°C9°C

Lake Sempach: Water Temperature by Location

Lake Sempach: Weather Forecast

August 13

° / °
clear sky
rain: 0% | wind:

August 14

° / °
partly cloudy
rain: 0% | wind:

August 15

° / °
overcast
rain: 46% | wind:

August 16

° / °
slight thunderstorm
rain: 73% | wind:

August 17

° / °
slight thunderstorm
rain: 68% | wind:

Location & Local Information

Primary inflows: Gross Aa, Chli Aa (Sempachersee), Meierhofbach, Wilibach, Dorfbach (Sempachersee), Brandbach, Röllbach (Sempachersee), Lipperütibach, and some unnamed
Primary outflows: Suhre
Basin countries: Switzerland
Surface area: 14.5 km2 (5.6 sq mi)
Average depth: 44 m (144 ft)
Max. depth: 87 m (285 ft)
Water volume: 0.66 km3 (540,000 acre⋅ft)
Residence time: 16.9 years
Surface elevation: 503.77 m (1,652.8 ft)
Islands: Gamma Insel

Lake Sempach (Sempachersee) is a scenic lake located in the canton of Lucerne, Switzerland. The lake covers an area of about 14 square kilometers (5.4 square miles) and is surrounded by charming towns and beautiful natural landscapes. Popular for swimming, sailing, fishing, and walking along its shores, the lake is a great destination for outdoor activities. During the summer, the water temperature of Lake Sempach typically ranges from 20°C to 24°C (68°F to 75°F), providing pleasant conditions for swimming and other water sports.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Sempach?
Water Temperature in Lake Sempach today is 29.1°C.
What is the water temperature in Lake Sempach during the summer months?
The water temperature in Lake Sempach in summer fluctuates in the range of 19°C - 30°C.
Is it possible to swim in Lake Sempach and what are the possibilities for this?
Yes, it is possible to swim in Lake Sempach, Switzerland. There are several public beaches and bathhouses around the lake, providing easy access for swimming.