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Aar River — Current Water Temperature, Annual Trends and Forecast

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

Aar River, Germany
Aar River, Germany © By Martin Kraft, CC BY-SA 3.0

Current Water Temperature

21.0°C
Today
20.2°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 the Aar River today is 21°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 July 31 to August 31

Table of Daily Sea Temperature Data

Date Current Average Forecast
AUG 2421.2°C22.2°C
AUG 2520.3°C22.2°C
AUG 2620.7°C22.2°C
AUG 2720.7°C22.2°C
AUG 2820.6°C22.2°C
AUG 2920.7°C22.2°C
AUG 3020.2°C22.2°C
AUG 3121.0°C22.2°C
SEP 116.9°C20.8°C
SEP 216.9°C20.6°C
SEP 316.9°C20.4°C
SEP 416.9°C20.2°C
SEP 516.9°C20.0°C
SEP 616.9°C19.8°C
SEP 716.9°C19.6°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°C5°C7°C
February2°C5°C8°C
March6°C7°C10°C
April7°C11°C15°C
May12°C16°C20°C
June17°C21°C25°C
July17°C21°C26°C
August19°C22°C26°C
September14°C17°C22°C
October11°C14°C16°C
November4°C9°C13°C
December3°C6°C8°C

Aar River: Water Temperature by Location

Aar River: Weather Forecast

September 1

° / °
light drizzle
rain: 43% | wind:

September 2

° / °
overcast
rain: 7% | wind:

September 3

° / °
light drizzle
rain: 4% | wind:

September 4

° / °
light drizzle
rain: 19% | wind:

September 5

° / °
light drizzle
rain: 16% | wind:

Location & Local Information

Source:
• location Taunus
Mouth:
• location Lahn
• coordinates 50°22′7″N 8°0′20″E
Length 49.7 km (30.9 mi)

The Aar River, located in the central part of Germany, is a tributary of the Lahn River. It flows through a scenic region, offering a variety of opportunities for outdoor activities, including swimming. The water temperature of the Aar River varies significantly throughout the year, typically ranging from 4°C in winter to 18-22°C during the summer months. In the warmer periods, the Aar River is a popular destination for swimming, especially in the towns of Biedenkopf and the surrounding areas. The water is relatively clean and clear, making it suitable for recreational swimming, although some areas may have a faster current, so swimmers should always pay attention to water conditions.

Many people enjoy swimming in the Aar River because of its peaceful surroundings, with wooded landscapes and rolling hills along its banks. Although the river is smaller compared to other rivers in Germany, its calm sections provide a good balance for swimmers looking for a more relaxed and tranquil experience. It is worth noting that some stretches of the river may have limited access or be designated for activities like boating, so swimmers should always verify the safety of the area before entering the water.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Aar River?
Water Temperature in the Aar River today is 21°C.
What is the water temperature in the Aar River during the summer months?
The water temperature in the Aar River in summer fluctuates in the range of 17°C - 26°C.
Is it possible to swim in the Aar River?
Yes, it is possible to swim in the Aar River, but precautions are necessary due to the strong current and cold water temperatures. It is recommended for experienced swimmers only.