Pääjärvi water temperature
Pääjärvi, Karstula · Lake
The current water temperature at Pääjärvi is 12.9 °C (as of September 19, 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.
Measurement series & statistics
This measurement series includes 59 data points since July 23, 2026.
Lowest recorded value: 12.9 °C on September 19, 2026 · highest value: 19.1 °C on July 23, 2026.
In September, temperatures have ranged between 12.9 °C and 17.1 °C.
The current value is 1.6 °C below the September average of this series.
Nearby waters
More measuring points: Pääjärvi
Frequently asked questions
Can you swim at Pääjärvi right now?
The current water temperature is 12.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Pääjärvi?
Currently 12.9 °C (updated continuously).
How warm is at Pääjärvi in September?
In September, the water temperature recently averaged 14.5 °C.
When is the water warmest at Pääjärvi?
Across the measurement record, July is on average the warmest month (18.3 °C).
