Pääjärvi water temperature
Pääjärvi, Lammi · Lake
The current water temperature at Pääjärvi is 9.5 °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.
Measurement series & statistics
This measurement series includes 32 data points since August 18, 2026.
Lowest recorded value: 9.4 °C on October 14, 2026 · highest value: 17.5 °C on August 22, 2026.
In October, temperatures have ranged between 9.4 °C and 10.9 °C.
The current value is 0.5 °C below the October 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 9.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Pääjärvi?
Currently 9.5 °C (updated continuously).
How warm is at Pääjärvi in October?
In October, the water temperature recently averaged 10.0 °C.
When is the water warmest at Pääjärvi?
Across the measurement record, August is on average the warmest month (16.5 °C).
