Eider River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Eider River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Eider River today is 21.1°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 14 | 21.4°C | 18.9°C | |
| JUL 15 | 21.8°C | 18.9°C | |
| JUL 16 | 21.8°C | 18.9°C | |
| JUL 17 | 22.1°C | 18.9°C | |
| JUL 18 | 22.4°C | 18.9°C | |
| JUL 19 | 22.8°C | 18.9°C | |
| JUL 20 | 22.7°C | 18.9°C | |
| JUL 21 | 21.1°C | 18.9°C | |
| JUL 22 | 18.9°C | 21.0°C | |
| JUL 23 | 18.9°C | 20.9°C | |
| JUL 24 | 18.9°C | 20.8°C | |
| JUL 25 | 18.9°C | 20.7°C | |
| JUL 26 | 18.9°C | 20.6°C | |
| JUL 27 | 18.9°C | 20.4°C | |
| JUL 28 | 18.9°C | 20.3°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 | 4°C | 6°C |
| February | 1°C | 4°C | 6°C |
| March | 4°C | 7°C | 9°C |
| April | 4°C | 9°C | 14°C |
| May | 11°C | 15°C | 18°C |
| June | 15°C | 20°C | 24°C |
| July | 16°C | 19°C | 24°C |
| August | 17°C | 19°C | 20°C |
| September | 13°C | 18°C | 22°C |
| October | 9°C | 12°C | 14°C |
| November | 4°C | 8°C | 11°C |
| December | 3°C | 5°C | 7°C |
Eider River: Water Temperature by Location
Eider River: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Source Klaster Teich
• location Wattenbek
• coordinates 54°8′18″N 10°7′38″E
Mouth North Sea
• location Tönning
• coordinates 54°18′52.27″N 8°57′16.34″E
Length 188 km (117 mi)
The Eider River, the longest river in Schleswig-Holstein, Germany, offers varied water temperatures depending on the season and location. During the summer months, the water temperature can range between 16–22°C, with warmer spots often found in slower-flowing sections or areas exposed to prolonged sunlight. In winter, temperatures drop significantly, reflecting the cold climate of northern Germany.
Swimming in the Eider is possible, particularly in designated recreational areas. While certain stretches near reservoirs or calm bends are suitable for swimming, the river's tidal influences closer to the North Sea and its sometimes strong currents make swimming less advisable in other areas. Always check for local advice and designated safe swimming zones to ensure a safe and enjoyable experience.