Isar water temperature

Isar, Landau · River

The current water temperature at Isar is 20.8 °C (as of September 1, 2026, source: GKD Bayern).

A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.

20.8 °C

Measured: September 1, 2026 · continuously updated

💧 Water 20.8° · ☀️ Air 15.1° · high today 23.2°

Temperature trend of recent weeks

Isar — Photo: Gomera-b · CC BY-SA 4.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 1006 data points since July 3, 2026.

Lowest recorded value: 19.6 °C on August 26, 2026 · highest value: 25.2 °C on August 5, 2026.

Nearby waters

Vils, Rottersdorf · 7.7 km away18.7 °C Donau, Pfelling Messstation · 23.1 km away22.3 °C Donau, Straubing · 25.0 km away22.3 °C Donau, Deggendorf · 25.8 km away22.2 °C Donau, Deggendorf · 25.8 km away22.2 °C

More measuring points: Isar

München19.9 °C Landshut-Birket19.7 °C Puppling15.9 °C Bad Tölz B47215.4 °C Lenggries13.8 °C Mittenwald10.1 °C

Frequently asked questions

Can you swim at Isar right now?
The current water temperature is 20.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Isar?
Currently 20.8 °C (updated continuously).

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