Hallstätter See water temperature
Hallstätter See, Lahn · Lake
The current water temperature at Hallstätter See is 14.2 °C (as of October 16, 2026, source: Hydrographie Land Oberösterreich).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
Water quality
EU classification: excellentMeasurement series & statistics
This measurement series includes 885 data points since August 17, 2026.
Lowest recorded value: 14.0 °C on October 16, 2026 · highest value: 22.1 °C on August 17, 2026.
In October, temperatures have ranged between 14.0 °C and 16.3 °C.
The current value is 1.1 °C below the October average of this series.
Nearby waters
More measuring points: Hallstätter See
Frequently asked questions
Can you swim at Hallstätter See right now?
The current water temperature is 14.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Hallstätter See?
Currently 14.2 °C (updated continuously).
How warm is at Hallstätter See in October?
In October, the water temperature recently averaged 15.3 °C.
When is the water warmest at Hallstätter See?
Across the measurement record, August is on average the warmest month (19.6 °C).
How is the water quality at Hallstätter See?
The official classification is: excellent.
