Search for cities, countries, lakes and rivers

Grimselsee

Grimselsee Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Grimselsee, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Lake Water Temperature Information

15.1°C

TODAY

15.5°C

YESTERDAY

14.3°C

A WEEK AGO

As of today, the minimum water temperature in the Grimselsee ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.

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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Grimselsee Over the Last 30 Days

Today the water temperature in Grimselsee is lower than the same day in previous years. The water temperature range here in August is from 15°C to 25°C. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.

The forecasted water temperature values for Grimselsee are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Jul 2814.3°C19.0°C
Jul 2914.5°C19.0°C
Jul 3014.1°C19.0°C
Jul 3114.9°C19.0°C
Aug 115.0°C20.0°C
Aug 215.0°C20.0°C
Aug 315.5°C20.0°C
Aug 415.1°C20.0°C
Aug 520.0°C15.4°C
Aug 620.0°C15.7°C
Aug 720.0°C16.0°C
Aug 820.0°C16.3°C
Aug 920.0°C16.5°C
Aug 1020.0°C16.7°C
Aug 1120.0°C16.9°C
Aug 1220.0°C17.1°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Grimselsee by Month

January

MinimumAverageMaximum
0°C0.5°C1°C

February

MinimumAverageMaximum
0°C0°C0°C

March

MinimumAverageMaximum
0°C0.5°C1°C

April

MinimumAverageMaximum
1°C5°C9°C

May

MinimumAverageMaximum
3°C9.5°C16°C

June

MinimumAverageMaximum
6°C14°C22°C

July

MinimumAverageMaximum
14°C19°C24°C

August

MinimumAverageMaximum
15°C20°C25°C

September

MinimumAverageMaximum
9°C12.1°C17°C

October

MinimumAverageMaximum
0°C3°C6°C

November

MinimumAverageMaximum
0°C0.6°C6°C

December

MinimumAverageMaximum
0°C0.5°C1°C

Monthly Water Temperature Histogram for Grimselsee

Grimselsee Weather

AUGUST 5

7°C / 15°C
fog

rain: 34% | wind: 13 km/h

AUGUST 6

6°C / 13°C
fog

rain: 33% | wind: 13 km/h

AUGUST 7

9°C / 19°C
slight rain

rain: 5% | wind: 14 km/h

AUGUST 8

16°C / 21°C
slight rain showers

rain: 5% | wind: 10 km/h

Water Temperature in Grimselsee: General Trends and Swimming Opportunities

Type: artificial lake, hydroelectric reservoir
Primary inflows: Oberaarbach [de], Treibtenbach
Primary outflows: Aare
Catchment area: 74.4 km2 (28.7 sq mi)
Basin countries: Switzerland
Surface area: 2.63 km2 (1.02 sq mi)
Water volume: 95 million cubic metres (77,000 acre⋅ft)
Surface elevation: 1,908 m (6,260 ft)

Grimselsee is an artificial reservoir located in the Bernese Alps in Switzerland, near the Grimsel Pass. It is formed by the Grimsel Dam and is part of a larger hydroelectric system. The lake, with its striking turquoise waters, is surrounded by dramatic alpine landscapes and attracts hikers and nature enthusiasts. Due to its high altitude (around 1,900 meters), the water temperature in Grimselsee stays cold year-round, typically ranging from 4°C to 10°C (39°F to 50°F) during summer, making swimming very uncommon.

Geographical Location of Grimselsee

Frequently Asked Questions About Grimselsee and its Water Temperatures

What is the current water temperature in Grimselsee?

The water temperature today in Grimselsee is 59°F (15.1°C).

What is the water temperature in Grimselsee during the summer months?

The average water temperature in Grimselsee during the summer months is typically between 64°F to 72°F (18°C to 22°C), and it can reach up to 77°F (25°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Grimselsee in May?

The average water temperature in Grimselsee in May ranges from 50°F to 61°F (10°C to 16°C).

What is the water temperature in Grimselsee in September?

The average water temperature in Grimselsee in September is typically between 48°F to 63°F (9°C to 17°C).

Where is Grimselsee located?

Grimselsee is located in Switzerland, at an elevation of 6,260 feet (1908 meters) above sea level.

Is it possible to swim in Grimselsee and what are the possibilities for this?

Yes, it is possible to swim in Grimselsee in Switzerland. However, the lake is glacier-fed, hence it's usually very cold, and there are no specific public facilities for swimming.

What are the coordinates of Grimselsee?

Grimselsee is located at coordinates 46.5660°N 8.3040°E.