Diemel River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Diemel River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Diemel River today is 18.1°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 |
|---|---|---|---|
| AUG 24 | 18.7°C | 17.7°C | |
| AUG 25 | 18.3°C | 17.7°C | |
| AUG 26 | 18.4°C | 17.7°C | |
| AUG 27 | 17.7°C | 17.7°C | |
| AUG 28 | 17.7°C | 17.7°C | |
| AUG 29 | 18.0°C | 17.7°C | |
| AUG 30 | 18.0°C | 17.7°C | |
| AUG 31 | 18.1°C | 17.7°C | |
| SEP 1 | 14.5°C | 17.9°C | |
| SEP 2 | 14.5°C | 17.7°C | |
| SEP 3 | 14.5°C | 17.6°C | |
| SEP 4 | 14.5°C | 17.4°C | |
| SEP 5 | 14.5°C | 17.2°C | |
| SEP 6 | 14.5°C | 17.0°C | |
| SEP 7 | 14.5°C | 16.8°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 | 5°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 5°C | 8°C | 10°C |
| April | 6°C | 10°C | 13°C |
| May | 10°C | 13°C | 17°C |
| June | 13°C | 18°C | 23°C |
| July | 14°C | 19°C | 23°C |
| August | 14°C | 18°C | 22°C |
| September | 12°C | 15°C | 20°C |
| October | 9°C | 11°C | 15°C |
| November | 4°C | 9°C | 13°C |
| December | 2°C | 5°C | 7°C |
Diemel River: Water Temperature by Location
Diemel River: Weather Forecast
September 1
September 2
September 3
September 4
Location & Local Information
Source:
• location Sauerland
• coordinates 51°15′59″N 8°39′05″E
• elevation 680 m (2,230 ft)
Mouth:
• location Weser
• coordinates 51°38′33″N 9°26′52″E
Length 110.4 km (68.6 mi)
The Diemel River, flowing through the German states of North Rhine-Westphalia and Hesse, offers a relatively calm and scenic environment for outdoor activities, including swimming. The water temperature of the Diemel can vary significantly depending on the time of year, typically ranging from around 8°C (46°F) in the winter months to 18°C (64°F) or higher during the summer. In the warmer months, the river can be quite refreshing for swimmers, though it may not reach the higher temperatures found in larger rivers or lakes. As with many smaller rivers, the water in the Diemel is often considered clean, though the river’s shallower sections and slower current in some areas make it particularly popular for those seeking a peaceful swimming experience.
Despite its potential for swimming, the Diemel is not as heavily frequented for recreational swimming compared to other larger rivers in Germany. There are some sections where swimming is possible, especially in the areas around the towns of Diemelstadt or Trendelburg. However, because the river’s flow can change with rainfall and seasonal variation, it is important for swimmers to check water levels and local advisories. Generally, as with any river, it is advisable to swim in designated areas where the current is safe, and to always check for any specific local regulations.