BrrChecker

Pääjärvi water temperature

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.

6.8 °C
Measured: October 15, 2026 · continuously updated
💧 Water 6.8° · ☀️ Air 10.4°
Temperature trend of recent weeks
Pääjärvi
Photo: Santeri Viinamäki · CC BY-SA 4.0 · Wikimedia Commons

Measurement series & statistics

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.

Nearby waters

More measuring points: Pääjärvi

Frequently asked questions

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).

Open in the BrrChecker app

← All waters · Warmest lakes to swim today · Water temperature in Finland