Lysvatnet · Lake
The current water temperature at Lysvatnet is 13.4 °C (as of September 1, 2026, source: official monitoring networks).
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 1116 data points since July 3, 2026.
Lowest recorded value: 11.0 °C on August 12, 2026 · highest value: 15.5 °C on July 11, 2026.
In September, temperatures have ranged between 13.2 °C and 13.4 °C.
The current value is 0.1 °C above the September average of this series.
Can you swim at Lysvatnet right now?
The current water temperature is 13.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lysvatnet?
Currently 13.4 °C (updated continuously).
How warm is at Lysvatnet in September?
In September, the water temperature recently averaged 13.3 °C.
When is the water warmest at Lysvatnet?
Across the measurement record, August is on average the warmest month (13.9 °C).