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Wetzlar — Current Water Temperature, Annual Trends and Forecast

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

Lahn River, Germany
Lahn River, Germany © By de:Benutzer, GFDL

Current Water Temperature

16.4°C
Today
16.8°C
Yesterday
17.5°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 Wetzlar today is 16.4°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature 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.

Water Temperature Chart Over the Last 30 Days

From August 20 to September 20

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1317.5°C18.0°C
SEP 1418.0°C18.0°C
SEP 1516.8°C18.0°C
SEP 1617.3°C18.0°C
SEP 1716.8°C18.0°C
SEP 1816.4°C18.0°C
SEP 1916.8°C18.0°C
SEP 2016.4°C18.0°C
SEP 2118.0°C16.5°C
SEP 2218.0°C16.6°C
SEP 2318.0°C16.6°C
SEP 2418.0°C16.7°C
SEP 2518.0°C16.8°C
SEP 2618.0°C16.9°C
SEP 2718.0°C17.0°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
January2°C5°C7°C
February1°C4°C8°C
March6°C8°C12°C
April7°C12°C16°C
May10°C14°C19°C
June15°C20°C25°C
July18°C21°C26°C
August17°C22°C26°C
September13°C18°C23°C
October8°C11°C14°C
November3°C8°C11°C
December2°C6°C8°C

Wetzlar: Weather Forecast

September 21

° / °
fog
rain: 0% | wind:

September 22

° / °
fog
rain: 0% | wind:

September 23

° / °
slight rain
rain: 28% | wind:

September 24

° / °
slight rain showers
rain: 30% | wind:

September 25

° / °
fog
rain: 0% | wind:

September 26

° / °
fog
rain: 3% | wind:

Location & Local Information

Wetzlar, a city in Hesse, Germany, is a charming location nestled along the banks of the Lahn river. This river, flowing through central Germany, creates unique recreational opportunities, and the proximity to Wetzlar adds to the city's natural appeal. However, discussions on water temperature and the possibility of swimming in this river require understanding of both natural and seasonal factors.

The water temperature of the Lahn river varies throughout the year, following typical continental weather patterns. In the winter months, from December to February, the water is usually cold, sometimes even near freezing. Summer months, from June to August, see the river warming up, often reaching a much more conducive temperature range for swimming, typically around 15-20°C (59-68°F), depending on that year's particular weather conditions.

In terms of swimming, it's possible, but whether or not it's recommended depends on a few factors. In the warmer summer months, you'll often find locals swimming in the calmer sections of the river. However, as the Lahn has areas of fast-flowing currents, it is advised to only swim in designated areas, and always observe local restrictions and safety measures. Always remember to assess the depth, current and any potential underwater risks before making the decision to swim. Also, note that the river's water quality can also fluctuate, so it's a good idea to check local resources for updates before diving in.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Wetzlar?
Water Temperature in Wetzlar today is 16.4°C.
What is the water temperature in Wetzlar during the summer months?
The water temperature in Wetzlar in summer fluctuates in the range of 15°C - 26°C.
Is it possible to swim in the Lahn River in Wetzlar, and what are the available options for doing so?
Yes, it's possible to swim in the Lahn River in Wetzlar. You can either choose a guided swim tour or swim independently following local guidelines and precautions.