Pääjärvi, Karstula · Lake
The current water temperature at Pääjärvi is 6.8 °C (as of October 15, 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 59 data points since August 18, 2026.
Lowest recorded value: 6.5 °C on October 14, 2026 · highest value: 18.0 °C on August 23, 2026.
In October, temperatures have ranged between 6.5 °C and 11.6 °C.
The current value is 2.5 °C below the October average of this series.
Can you swim at Pääjärvi right now?
The current water temperature is 6.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Pääjärvi?
Currently 6.8 °C (updated continuously).
How warm is at Pääjärvi in October?
In October, the water temperature recently averaged 9.3 °C.
When is the water warmest at Pääjärvi?
Across the measurement record, August is on average the warmest month (16.8 °C).