Alzette River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Alzette River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Alzette 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 |
|---|---|---|---|
| JUN 23 | 21.0°C | 21.8°C | |
| JUN 24 | 21.0°C | 21.8°C | |
| JUN 25 | 21.1°C | 21.8°C | |
| JUN 26 | 21.3°C | 21.8°C | |
| JUN 27 | 21.9°C | 21.8°C | |
| JUN 28 | 21.9°C | 21.8°C | |
| JUN 29 | 21.9°C | 21.8°C | |
| JUN 30 | 21.1°C | 21.8°C | |
| JUL 1 | 21.5°C | 21.1°C | |
| JUL 2 | 21.5°C | 21.1°C | |
| JUL 3 | 21.5°C | 21.2°C | |
| JUL 4 | 21.5°C | 21.2°C | |
| JUL 5 | 21.5°C | 21.2°C | |
| JUL 6 | 21.5°C | 21.2°C | |
| JUL 7 | 21.5°C | 21.2°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 | 3°C | 7°C | 9°C |
| March | 5°C | 9°C | 13°C |
| April | 7°C | 11°C | 15°C |
| May | 9°C | 15°C | 19°C |
| June | 15°C | 22°C | 28°C |
| July | 17°C | 22°C | 26°C |
| August | 17°C | 20°C | 23°C |
| September | 13°C | 19°C | 25°C |
| October | 10°C | 14°C | 17°C |
| November | 5°C | 8°C | 11°C |
| December | 2°C | 4°C | 7°C |
Alzette River: Water Temperature by Location
Alzette River: Weather Forecast
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July 5
Location & Local Information
Source:
• location Thil
• elevation 305 m (1,001 ft)
Mouth Sauer
• location Ettelbruck
• coordinates 49°50′54″N 6°6′43″E
Length 73 km (45 mi)
The Alzette River, flowing through Luxembourg and parts of France, is a smaller river known more for its scenic charm and historical landmarks than for swimming. Due to its relatively mild current and narrow course, its water temperature generally varies with the season, reaching around 15°C to 20°C (59°F to 68°F) in the warmer months. In winter, the temperature can drop significantly, often falling below 5°C (41°F). This fluctuation, along with the river's modest depth and occasional pollution issues, makes it less popular for swimming compared to larger rivers in the region.
There are no official swimming areas along the Alzette, partly due to water quality concerns in urban areas like Luxembourg City. However, people often enjoy walking, cycling, and picnicking along its banks, particularly in scenic areas where the river passes through lush landscapes and historic sites. Although swimming is not recommended, the Alzette offers a pleasant environment for recreational activities close to nature.