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Lago di Lei — Current Water Temperature, Annual Trends and Forecast

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

Sufnersee, Switzerland
Sufnersee, Switzerland © By Aconcagua - Own work, GFDL

Current Water Temperature

18.1°C
Today
18.1°C
Yesterday
16.5°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 Lago di Lei today is 18.1°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

From June 21 to July 22

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1416.5°C16.5°C
JUL 1517.9°C16.5°C
JUL 1617.9°C16.5°C
JUL 1718.1°C16.5°C
JUL 1818.3°C16.5°C
JUL 1918.4°C16.5°C
JUL 2018.1°C16.5°C
JUL 2118.3°C16.5°C
JUL 2216.5°C18.0°C
JUL 2316.5°C17.9°C
JUL 2416.5°C17.9°C
JUL 2516.5°C17.8°C
JUL 2616.5°C17.7°C
JUL 2716.5°C17.6°C
JUL 2816.5°C17.5°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°C0°C0°C
March0°C0°C1°C
April0°C1°C7°C
May3°C7°C11°C
June6°C12°C17°C
July14°C17°C22°C
August14°C17°C19°C
September11°C14°C19°C
October6°C9°C12°C
November1°C5°C8°C
December0°C2°C4°C

Lago di Lei: Water Temperature by Location

Lago di Lei: Weather Forecast

July 22

° / °
fog
rain: 0% | wind:

July 23

° / °
overcast
rain: 0% | wind:

July 24

° / °
overcast
rain: 0% | wind:

July 25

° / °
slight rain showers
rain: 95% | wind:

July 26

° / °
overcast
rain: 90% | wind:

July 27

° / °
overcast
rain: 20% | wind:

Location & Local Information

Type: hydroelectric reservoir
Primary outflows: Reno di Lei
Catchment area: 46.5 km2 (18.0 sq mi)
Basin countries: Italy, Switzerland
Max. length: 7.7 km (4.8 mi)
Surface area: 4.12 km2 (1.59 sq mi)
Max. depth: 133 m (436 ft)
Water volume: 197 million cubic metres (160,000 acre⋅ft)
Surface elevation: 1,931 m (6,335 ft)

Lago di Lei is an artificial lake located in the canton of Graubünden, Switzerland, near the border with Italy. Situated at an elevation of approximately 2,300 meters (7,546 feet), it was created primarily for hydroelectric power generation. The lake is surrounded by dramatic mountain scenery and is a popular destination for hikers and outdoor enthusiasts. Activities such as fishing, hiking, and photography are common in the area. Due to its high altitude, the water temperature in Lago di Lei tends to be quite cold, typically ranging from 5°C to 10°C (41°F to 50°F) during the summer months. In winter, the lake can freeze over, creating a serene winter landscape.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lago di Lei?
Water Temperature in Lago di Lei today is 18.1°C.
What is the water temperature in Lago di Lei during the summer months?
The water temperature in Lago di Lei in summer fluctuates in the range of 6°C - 22°C.
Is it possible to swim in Lago di Lei and what are the possibilities for this?
Yes, it's possible to swim in Lago di Lei, Switzerland, but the lake is cold even in summer. It's a remote area so you should bring all necessities with you while also keeping an eye on local regulations.