Pühajärv is a lake in Valga, Estonia. This page reports official water-quality measurements, shown as reported.

Is Pühajärv safe to swim in?

Pühajärv has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.

How deep is Pühajärv?

Pühajärv has a maximum depth of 28.5 feet. The lake covers 724 acres.

Pühajärv

Valga, Estonia293 haView map Directions

KAUR publishes the water-quality measurements for Pühajärv. Here is what has been measured.

Clarity

2.7 m

Clearer than most

Secchi · sampled 2025

Phosphorus

29 µg/L

Typical for Estonia

Measured by KAUR

Chlorophyll-a

7.6 µg/L

Typical for Estonia

Measured by KAUR

Max depth

8.7 m

Bathymetric survey

Area

293 ha

Surface area

29 ft max depth
Limited data

See the measurements Directions Where to stay

Pühajärv in Valga, Estonia has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 7.6 µg/L. Maximum depth: 28.5 ft. Surface area: 724 acres.

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How Pühajärv is classified

Pühajärv in Estonia is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).

LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.

Monitoring: the Estonian Environment Agency (Keskkonnaagentuur).

Pühajärv is a 724-acre lake in Valga County, Estonia with a maximum depth of 29 feet.

Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2025-09-09. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Pühajärv is safe to swim in today is a call for the Estonian Environment Agency (Keskkonnaagentuur) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Pühajärv

These are the measurements KAUR publishes for Pühajärv. More on the source.

Moderate clarity, visible to about 8.9 ft. Phosphorus 29 µg/L. Chlorophyll-a 7.6 µg/L. TSI 50.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.7m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	29µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	7.6µg/L	Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	50	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Pühajärv

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

8.7 m

Surface area

293 ha

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Fishing Pühajärv

→ Pühajärv fishing regulations (limits, seasons, special rules)

Frequently asked questions about Pühajärv

Where is Pühajärv?: Pühajärv is a lake in Valga, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Pühajärv?: Pühajärv in Valga, Estonia has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 7.6 µg/L. Maximum depth: 28.5 ft. Surface area: 724 acres.
Is Pühajärv safe to swim in?: Pühajärv has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
How deep is Pühajärv?: Pühajärv has a maximum depth of 28.5 feet. The lake covers 724 acres.

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Where this data comes from

210 measurements from 3 monitoring stations, 2016–2025. Retrieved from KESE / Estonian Environment Agency (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Estonian Environment Agency (Keskkonnaagentuur)kese-ee210 samples · 2016–2025

Analytical methods

KESE I-level monitoring

Monitoring station identifiers (3)

SJA4014000
SJA4014004
SJA4014005

Authority classifications are shown as the authority published them. See where the data comes from and data sources.