Isar River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Isar River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Isar River today is 12.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 2 | 13.3°C | 12.0°C | |
| JUN 3 | 12.4°C | 12.0°C | |
| JUN 4 | 12.3°C | 12.0°C | |
| JUN 5 | 11.6°C | 12.0°C | |
| JUN 6 | 11.7°C | 12.0°C | |
| JUN 7 | 11.1°C | 12.0°C | |
| JUN 8 | 11.5°C | 12.0°C | |
| JUN 10 | 12.0°C | 12.6°C | |
| JUN 11 | 12.0°C | 12.5°C | |
| JUN 12 | 12.0°C | 12.5°C | |
| JUN 13 | 12.0°C | 12.5°C | |
| JUN 14 | 12.0°C | 12.5°C | |
| JUN 15 | 12.0°C | 12.4°C | |
| JUN 16 | 12.0°C | 12.4°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 | 0°C | 3°C | 5°C |
| February | 0°C | 3°C | 6°C |
| March | 2°C | 5°C | 8°C |
| April | 3°C | 8°C | 12°C |
| May | 5°C | 10°C | 15°C |
| June | 6°C | 12°C | 18°C |
| July | 10°C | 14°C | 18°C |
| August | 11°C | 15°C | 19°C |
| September | 6°C | 9°C | 14°C |
| October | 4°C | 7°C | 10°C |
| November | 2°C | 6°C | 9°C |
| December | 1°C | 3°C | 5°C |
Isar River: Water Temperature by Location
Isar River: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
Source:
• location Eiskarlspitze, Alps, Austria
• coordinates 47°22′29″N 11°24′43″E
• elevation 1,160 m (3,810 ft)
Mouth:
• location Danube
• coordinates 48°48′11″N 12°58′35″E
Length 291.5 km (181.1 mi)
The Isar River flows through both Austria and Germany, originating in the Tyrol Alps of Austria and winding through the Bavarian countryside in Germany. Its source in the mountains results in cold, clear water, especially in its upper stretches. During the summer months, the water temperature of the Isar typically ranges from 10°C to 18°C (50°F to 64°F), which can feel refreshing but is generally too cold for prolonged swimming, particularly in the upper sections. The water temperature rises slightly in the lower sections as it flows through more settled areas, especially in Munich, but even in these parts, the water remains relatively cool compared to many other rivers or lakes.
Swimming in the Isar is popular, particularly in the warmer months. The river is known for its beautiful scenery and many accessible spots, especially near Munich, where locals and tourists enjoy cooling off during the summer. While the upper Isar is faster-flowing and colder, there are calmer sections lower down where swimming is more common. The river offers both natural beaches and designated swimming areas, where the water conditions are considered safe. However, swimmers should still be cautious of strong currents, especially after heavy rains, which can make the water flow faster and stronger. For safety, it is best to swim in designated areas where local authorities ensure the water conditions are suitable for swimming.