Sneisvatn · Lake
The current water temperature at Sneisvatn is 9.1 °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 708 data points since July 22, 2026.
Lowest recorded value: 8.8 °C on September 19, 2026 · highest value: 14.5 °C on August 8, 2026.
In September, temperatures have ranged between 8.8 °C and 13.2 °C.
The current value is 2.4 °C below the September average of this series.
Can you swim at Sneisvatn right now?
The current water temperature is 9.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Sneisvatn?
Currently 9.1 °C (updated continuously).
How warm is at Sneisvatn in September?
In September, the water temperature recently averaged 11.5 °C.
When is the water warmest at Sneisvatn?
Across the measurement record, August is on average the warmest month (12.3 °C).