Isar water temperature

Isar, Bad Tölz B472 · River

The current water temperature at Isar is 15.4 °C (as of August 31, 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.

15.4 °C

Measured: August 31, 2026 · continuously updated

💧 Water 15.4° · ☀️ Air 13.7° · high today 20.8°

Temperature trend of recent weeks

Isar — Photo: Locked · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 797 data points since July 3, 2026.

Lowest recorded value: 12.4 °C on August 23, 2026 · highest value: 19.0 °C on August 2, 2026.

Nearby waters

Isar, Lenggries · 7.9 km away13.8 °C Loisach, Beuerberg · 13.9 km away20.3 °C Söllbach, Bad Wiessee · 14.5 km away12.4 °C Weißach, Oberach · 18.0 km away10.3 °C Isar, Puppling · 19.8 km away15.9 °C

More measuring points: Isar

Landau20.8 °C München19.9 °C Landshut-Birket19.7 °C Puppling15.9 °C Lenggries13.8 °C Mittenwald10.1 °C

Frequently asked questions

Can you swim at Isar right now?
The current water temperature is 15.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Isar?
Currently 15.4 °C (updated continuously).

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