Paala järv (Viljandi) — bathing-water quality and weather
Current conditions
Latest measurements (2026 season)
Latest test: 2026-06-18
E. coli: 40 CFU/100 ml
Enterococci: 30 CFU/100 ml
Assessment: Complies with standards
3 measurements this season — see all
| Date | E. coli | Enterococci | Assessment: |
|---|---|---|---|
| 2026-06-18 | 40 | 30 | Complies with standards |
| 2026-06-16 | 80 | 220 | Complies with standards |
| 2026-05-19 | 10 | 30 | Complies with standards |
Hourly forecast
7-day forecast
Forecast model comparison
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Beach
Paala järv is an artificial lake on the edge of the Paalalinn district in Viljandi, with an official bathing site a short walk from the town centre. In summer, lifeguards record water and air temperature daily. The nearest weather station is Viljandi. Water quality is monitored by the Health Board under EU bathing-water rules.
Local climate
| Month | Avg °C | Avg high °C | Avg low °C | Precip mm |
|---|---|---|---|---|
| Jan | -4.2 | -2.2 | -6.5 | 48.3 |
| Feb | -4.8 | -2.4 | -7.3 | 46.7 |
| Mar | -1.3 | 2.1 | -4.6 | 39.1 |
| Apr | 5.2 | 9.5 | 0.9 | 43.4 |
| May | 11.0 | 15.3 | 6.1 | 54.5 |
| Jun | 15.6 | 19.4 | 11.1 | 86.4 |
| Jul | 18.0 | 21.7 | 13.9 | 80.3 |
| Aug | 16.8 | 20.4 | 13.1 | 91.1 |
| Sep | 12.0 | 15.3 | 9.0 | 57.5 |
| Oct | 6.3 | 8.8 | 4.0 | 69.5 |
| Nov | 1.6 | 3.3 | -0.3 | 57.4 |
| Dec | -2.4 | -0.6 | -4.4 | 50.5 |
Frequently asked questions
What is the bathing-water quality?
The latest Health Board bathing-water measurement (2026-06-18): E. coli 40 CFU/100 ml, enterococci 30 CFU/100 ml. EU Bathing Water Directive long-term classification: not assessed.
When is the best time to swim?
The swimming season usually lasts from early June to late August. The warmest month, July, averages 18.0°C, and the water is warmest in the second half of July.
How warm is the water in summer?
Lake water usually warms to 18–22 °C in midsummer, and more in shallow shoreline water. You can see the current water temperature on puhub's water layer.
Is Paala järv (Viljandi) a safe place to swim?
Paala järv (Viljandi) is an official, EEA-registered bathing beach whose water is monitored by the Health Board. There may not be a permanent lifeguard, so swim in the marked area and watch the weather.