Balaton water temperature
Balaton, Siófok · Lake
The current water temperature at Balaton is 20.3 °C (as of September 20, 2026, source: OVF (vizugy.hu)).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
Water quality
EU classification: excellentMeasurement series & statistics
This measurement series includes 52 data points since July 23, 2026.
Lowest recorded value: 17.4 °C on September 12, 2026 · highest value: 27.1 °C on August 4, 2026.
In September, temperatures have ranged between 17.4 °C and 23.0 °C.
The current value is 1.1 °C below the September average of this series.
Nearby waters
More measuring points: Balaton
Frequently asked questions
Can you swim at Balaton right now?
The current water temperature is 20.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Balaton?
Currently 20.3 °C (updated continuously).
How warm is at Balaton in September?
In September, the water temperature recently averaged 21.4 °C.
When is the water warmest at Balaton?
Across the measurement record, August is on average the warmest month (24.4 °C).
How is the water quality at Balaton?
The official classification is: excellent.
