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Grüner See — Current Water Temperature, Annual Trends and Forecast

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

Stellbergsee, Germany
Stellbergsee, Germany © By Markus Schulenburg, GFDL

Current Water Temperature

21.9°C
Today
22.4°C
Yesterday
21.2°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 Grüner See today is 21.9°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 May 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2321.2°C19.5°C
JUN 2421.7°C19.5°C
JUN 2521.8°C19.5°C
JUN 2622.4°C19.5°C
JUN 2722.4°C19.5°C
JUN 2822.5°C19.5°C
JUN 2922.4°C19.5°C
JUN 3021.9°C19.5°C
JUL 120.5°C21.8°C
JUL 220.5°C21.8°C
JUL 320.5°C21.7°C
JUL 420.5°C21.6°C
JUL 520.5°C21.6°C
JUL 620.5°C21.5°C
JUL 720.5°C21.4°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
January2°C4°C6°C
February0°C3°C7°C
March5°C9°C12°C
April7°C11°C14°C
May11°C15°C20°C
June15°C20°C24°C
July16°C21°C25°C
August16°C20°C24°C
September12°C17°C22°C
October8°C11°C14°C
November4°C8°C11°C
December2°C4°C7°C

Grüner See: Water Temperature by Location

Grüner See: Weather Forecast

July 1

° / °
slight rain
rain: 80% | wind:

July 2

° / °
slight rain showers
rain: 28% | wind:

July 3

° / °
overcast
rain: 28% | wind:

July 4

° / °
overcast
rain: 9% | wind:

July 5

° / °
overcast
rain: 11% | wind:

Location & Local Information

Grüner See, located in Hundelshausen, near Witzenhausen, Germany, is a popular spot for swimming, particularly due to its vibrant green water, which is a result of its rich flora. This lake is not just a visual beauty but also a place where locals and tourists can enjoy swimming. The water temperature in the lake varies depending on the season. In summer, the lake's temperature can rise to around 22°C to 25°C (72°F to 77°F), making it comfortable for a refreshing swim. However, as with many natural lakes, the water can cool significantly as the season progresses, particularly in autumn and early spring​.

While swimming is possible and common, there are no official lifeguards, so visitors should swim at their own risk. The lake is well-maintained and regularly monitored for water quality, which is typically excellent, ensuring that swimmers can enjoy a safe experience. For those who prefer not to swim, there are plenty of hiking opportunities around the lake and scenic spots to enjoy.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Grüner See?
Water Temperature in Grüner See today is 21.9°C.
What is the water temperature in Grüner See during the summer months?
The water temperature in Grüner See in summer fluctuates in the range of 15°C - 25°C.
Is it possible to swim in Grüner See and what are the possibilities for this?
Swimming in Grüner See (Germany) is not allowed due to environmental protection reasons. Therefore, no possibilities for swimming exist at this location.