Tretsee · Lake
The current water temperature at Tretsee is 10.8 °C (as of October 14, 2026, source: Civil Protection Agency South Tyrol).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
This measurement series includes 807 data points since August 15, 2026.
Lowest recorded value: 10.3 °C on October 13, 2026 · highest value: 20.0 °C on August 15, 2026.
In October, temperatures have ranged between 10.3 °C and 13.5 °C.
The current value is 1.2 °C below the October average of this series.
Can you swim at Tretsee right now?
The current water temperature is 10.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tretsee?
Currently 10.8 °C (updated continuously).
How warm is at Tretsee in October?
In October, the water temperature recently averaged 12.0 °C.
When is the water warmest at Tretsee?
Across the measurement record, August is on average the warmest month (18.1 °C).
How is the water quality at Tretsee?
The official classification is: excellent.