Iserlohn — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Iserlohn, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Iserlohn today is 18.8°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 14 | 20.1°C | 16.3°C | |
| JUL 15 | 20.1°C | 16.3°C | |
| JUL 16 | 20.1°C | 16.3°C | |
| JUL 17 | 20.9°C | 16.3°C | |
| JUL 18 | 20.9°C | 16.3°C | |
| JUL 19 | 20.9°C | 16.3°C | |
| JUL 20 | 20.9°C | 16.3°C | |
| JUL 21 | 18.8°C | 16.3°C | |
| JUL 22 | 16.3°C | 18.7°C | |
| JUL 23 | 16.3°C | 18.6°C | |
| JUL 24 | 16.3°C | 18.4°C | |
| JUL 25 | 16.3°C | 18.3°C | |
| JUL 26 | 16.3°C | 18.2°C | |
| JUL 27 | 16.3°C | 18.1°C | |
| JUL 28 | 16.3°C | 17.9°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 |
|---|---|---|---|
| January | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 5°C | 8°C | 11°C |
| April | 6°C | 10°C | 14°C |
| May | 10°C | 13°C | 17°C |
| June | 11°C | 17°C | 23°C |
| July | 11°C | 16°C | 22°C |
| August | 11°C | 16°C | 20°C |
| September | 13°C | 16°C | 21°C |
| October | 10°C | 13°C | 16°C |
| November | 3°C | 8°C | 11°C |
| December | 2°C | 6°C | 9°C |
Iserlohn: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Iserlohn is a city located in the North Rhine-Westphalia region of Germany, nestled along the banks of the Lenne River. This river, stretching nearly 130 kilometers, plays a vital role in the ecosystem of the region and offers a picturesque addition to Iserlohn's scenery. Water temperatures in the Lenne River vary significantly with the season and weather conditions. During the summer months, the water temperature typically ranges from around 15 to 20 degrees Celsius (59 to 68 degrees Fahrenheit). While it can be quite refreshing during the hot days of summer, the water temperature in winter can drop down significantly making it rather cold for any water activity.
As for swimming in the Lenne River near Iserlohn, it's important to note that while it's not strictly prohibited, it's generally not recommended for a few reasons. River currents can pose a potential risk even for experienced swimmers and water conditions can change quickly. In addition, the water quality of the Lenne River has been a matter of concern in the past due to industrial activities around the river, so it's advisable to check the latest information on water quality if you plan to swim. Finally, the city offers a multitude of safer and controlled environments for swimming such as indoor and outdoor pools that are maintained for public use. So as enticing as the river might seem during a hot summer day, it would usually be much safer, and likely more enjoyable, to head to one of the local pools for a swim.