Tarbja Tehisjärv — bathing-water quality and weather
Current conditions
Latest measurements (2026 season)
Latest test: 2026-06-03
E. coli: 10 CFU/100 ml
Enterococci: 10 CFU/100 ml
Assessment: Complies with standards
2 measurements this season — see all
| Date | E. coli | Enterococci | Assessment: |
|---|---|---|---|
| 2026-06-03 | 10 | 10 | Complies with standards |
| 2026-05-20 | 10 | 10 | Complies with standards |
Bathing-water quality
Latest EU monitoring assessment: Excellent (2021–2024)
The EU class is a rolling assessment of the last four bathing seasons; 2021–2024 is the newest published by the EEA. This season's individual samples are shown above.
Quality trend (2014–2024):
Data: EEA Bathing Water Quality (CC-BY 4.0) · Health Board bathing-water monitoring · EEA: EE00201011TARBJA
Hourly forecast
7-day forecast
Forecast model comparison
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Beach
Tarbja Tehisjärv is a lake in Järva County with an official swimming beach. It is located near Paide (4 km to the northeast). In all 5 monitored seasons the water quality has been excellent. The nearest measuring station is Vodja (4.3 km away). Official monitoring: Health Board, EU Bathing Water Directive (2006/7/EC).
Local climate
| Month | Avg °C | Avg high °C | Avg low °C | Precip mm |
|---|---|---|---|---|
| Jan | -4.3 | -2.2 | -6.5 | 46.5 |
| Feb | -4.8 | -2.4 | -7.3 | 44.1 |
| Mar | -1.4 | 1.9 | -4.7 | 36.7 |
| Apr | 5.0 | 9.4 | 0.7 | 39.0 |
| May | 10.8 | 15.2 | 5.8 | 53.3 |
| Jun | 15.5 | 19.5 | 10.8 | 80.1 |
| Jul | 18.0 | 21.8 | 13.7 | 75.9 |
| Aug | 16.7 | 20.4 | 12.9 | 87.9 |
| Sep | 11.9 | 15.2 | 8.8 | 59.0 |
| Oct | 6.2 | 8.6 | 3.9 | 62.2 |
| Nov | 1.5 | 3.2 | -0.3 | 53.3 |
| Dec | -2.4 | -0.6 | -4.4 | 48.9 |
Frequently asked questions
What is the bathing-water quality?
The latest Health Board bathing-water measurement (2026-06-03): E. coli 10 CFU/100 ml, enterococci 10 CFU/100 ml. EU Bathing Water Directive long-term classification: excellent.
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 Tarbja Tehisjärv a safe place to swim?
Tarbja Tehisjärv 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.