Tretsee water temperature
Tretsee · Lake
The current water temperature at Tretsee is 14.8 °C (as of September 20, 2026, source: Agentur für Bevölkerungsschutz Südtirol).
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 407 data points since August 10, 2026.
Lowest recorded value: 14.4 °C on September 19, 2026 · highest value: 20.6 °C on August 14, 2026.
In September, temperatures have ranged between 14.4 °C and 18.7 °C.
The current value is 2.1 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Tretsee right now?
The current water temperature is 14.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tretsee?
Currently 14.8 °C (updated continuously).
How warm is at Tretsee in September?
In September, the water temperature recently averaged 16.9 °C.
How is the water quality at Tretsee?
The official classification is: excellent.
