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Fertő tó water temperature

Fertő tó, Fertőrákos · Lake

The current water temperature at Fertő tó is 19.0 °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.

19.0 °C
Measured: September 20, 2026 · continuously updated
💧 Water 19.0° · ☀️ Air 21.4° · high today 25.6°
Temperature trend of recent weeks
Fertő tó
Photo: El Nino · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 52 data points since July 23, 2026.

Lowest recorded value: 15.3 °C on September 12, 2026 · highest value: 27.1 °C on August 2, 2026.

In September, temperatures have ranged between 15.3 °C and 22.0 °C.

The current value is 0.8 °C below the September average of this series.

Nearby waters

Frequently asked questions

Can you swim at Fertő tó right now?
The current water temperature is 19.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Fertő tó?
Currently 19.0 °C (updated continuously).

How warm is at Fertő tó in September?
In September, the water temperature recently averaged 19.8 °C.

When is the water warmest at Fertő tó?
Across the measurement record, August is on average the warmest month (23.3 °C).

Open in the BrrChecker app

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