Tisjøen · Lake
The current water temperature at Tisjøen is 13.7 °C (as of September 20, 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 691 data points since July 22, 2026.
Lowest recorded value: 13.7 °C on September 20, 2026 · highest value: 18.9 °C on July 24, 2026.
In September, temperatures have ranged between 13.7 °C and 17.8 °C.
The current value is 2.5 °C below the September average of this series.
Can you swim at Tisjøen right now?
The current water temperature is 13.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tisjøen?
Currently 13.7 °C (updated continuously).
How warm is at Tisjøen in September?
In September, the water temperature recently averaged 16.2 °C.
When is the water warmest at Tisjøen?
Across the measurement record, July is on average the warmest month (18.0 °C).