Oleška, Slaná · River
The current water temperature at Oleška is 19.4 °C (as of August 6, 2026, source: ČHMÚ).
Can you swim at Oleška right now?
The current water temperature is 19.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Oleška?
Currently 19.4 °C (updated continuously).
How warm is at Oleška in August?
In August, the water temperature recently averaged 18.3 °C.