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Isar River

Isar River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Isar River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Isar River

56°F

TODAY

55°F

YESTERDAY

62°F

A WEEK AGO

As of today, the minimum water temperature in the Isar River 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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Isar River Over the Last 30 Days

Today the water temperature in Isar River is lower than the same day in previous years. The water temperature range here in July is from 50°F to 64°F. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Isar are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Jul 562°F57°F
Jul 661°F57°F
Jul 762°F57°F
Jul 860°F57°F
Jul 959°F57°F
Jul 1054°F57°F
Jul 1155°F57°F
Jul 1256°F57°F
Jul 1357°F56°F
Jul 1457°F56°F
Jul 1557°F56°F
Jul 1657°F56°F
Jul 1757°F56°F
Jul 1857°F56°F
Jul 1957°F56°F
Jul 2057°F56°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Isar River by Month

January

MinimumAverageMaximum
34°F38°F41°F

February

MinimumAverageMaximum
32°F37°F43°F

March

MinimumAverageMaximum
36°F41°F46°F

April

MinimumAverageMaximum
39°F46°F54°F

May

MinimumAverageMaximum
41°F48°F55°F

June

MinimumAverageMaximum
43°F54°F64°F

July

MinimumAverageMaximum
50°F57°F64°F

August

MinimumAverageMaximum
52°F59°F66°F

September

MinimumAverageMaximum
43°F47°F57°F

October

MinimumAverageMaximum
39°F44°F48°F

November

MinimumAverageMaximum
36°F42°F45°F

December

MinimumAverageMaximum
34°F38°F41°F

Monthly Water Temperature Histogram for Isar River

Water Temperature in Cities and Towns on Isar River

Scharnitz
Austria
56°F
Plattling
Germany (Bavaria)
69°F
Landau an der Isar
Germany (Bavaria)
68°F
Mamming
Germany (Bavaria)
68°F
Germany (Bavaria)
68°F
Niederaichbach
Germany (Bavaria)
67°F
Germany (Bavaria)
65°F
Moosburg an der Isar
Germany (Bavaria)
64°F
Eching
Germany (Bavaria)
66°F
Germany (Bavaria)
64°F
Germany (Bavaria)
64°F
Grünwald
Germany (Bavaria)
65°F
Germany (Bavaria)
63°F
Bad Tölz
Germany (Bavaria)
60°F
Lenggries
Germany (Bavaria)
59°F
Mittenwald
Germany (Bavaria)
56°F

Isar River Weather

JULY 13

54°F / 72°F
overcast

rain: 50% | wind: 2 mph

JULY 14

55°F / 72°F
slight rain showers

rain: 48% | wind: 4 mph

JULY 15

59°F / 70°F
slight thunderstorm

rain: 74% | wind: 4 mph

JULY 16

52°F / 63°F
overcast

rain: 73% | wind: 8 mph

Water Temperature in Isar River: General Trends and Swimming Opportunities

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.

Geographical Location of Isar River

Frequently Asked Questions About Isar River and its Water Temperatures

What is the current water temperature in Isar River?

The water temperature today in Isar River ranges from 56°F (13.4°C) to 69°F (20.3°C).

What is the water temperature in Isar River during the summer months?

The average water temperature in Isar River during the summer months is typically between 49°F to 59°F (9°C to 15°C), and it can reach up to 66°F (19°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Isar River in May?

The average water temperature in Isar River in May ranges from 41°F to 52°F (5°C to 11°C).

What is the water temperature in Isar River in September?

The average water temperature in Isar River in September is typically between 43°F to 57°F (6°C to 14°C).

Where does Isar River flow?

Isar River flows through Austria, Germany (Bavaria).

Is it possible to swim in the Isar River?

Yes, it is possible to swim in the Isar River in Munich, Germany. However, caution is recommended due to its strong currents.

What major cities are located on Isar River?

Cities along the course of Isar River include Dingolfing (Bavaria), Freising (Bavaria), Geretsried (Bavaria), Landshut (Bavaria), Munich (Bavaria).