Lille Rostavatn water temperature
Lille Rostavatn · Lake
The current water temperature at Lille Rostavatn is 7.6 °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.
Measurement series & statistics
This measurement series includes 332 data points since July 22, 2026.
Lowest recorded value: 6.2 °C on July 22, 2026 · highest value: 7.8 °C on September 6, 2026.
In September, temperatures have ranged between 7.4 °C and 7.8 °C.
Nearby waters
Frequently asked questions
Can you swim at Lille Rostavatn right now?
The current water temperature is 7.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lille Rostavatn?
Currently 7.6 °C (updated continuously).
How warm is at Lille Rostavatn in September?
In September, the water temperature recently averaged 7.6 °C.
When is the water warmest at Lille Rostavatn?
Across the measurement record, September is on average the warmest month (7.6 °C).
