Where is Rauanjärvi?

Rauanjärvi is a lake in Juuka, Finland. This page reports official water-quality measurements, shown as reported.

Is Rauanjärvi safe to swim in?

Rauanjärvi 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 Rauanjärvi?

Rauanjärvi has a maximum depth of 33.5 feet.

Rauanjärvi

Juuka, FinlandView map Directions

Syke publishes the water-quality measurements for Rauanjärvi. Here is what has been measured.

Clarity

1.3 m

Typical for Finland

Secchi · sampled 2024

Phosphorus

9.7 µg/L

Less phosphorus than most

Measured by Syke

Chlorophyll-a

5.8 µg/L

Typical for Finland

Measured by Syke

Max depth

10.2 m

Bathymetric survey

34 ft max depth
Limited data

See the measurements Directions Where to stay

Rauanjärvi in Juuka, Finland has official water-quality measurements, shown as reported. Water clarity: 1.3 m visibility. Phosphorus: 9.7 µg/L. Chlorophyll-a (algae): 5.8 µg/L. Maximum depth: 33.5 ft.

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How Rauanjärvi is classified

Rauanjärvi in Finland 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 Finnish Environment Institute (Syke) and the ELY Centres.

Rauanjärvi is a lake in Juuka County, Finland with a maximum depth of 34 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2024-09-23. Methodology: how these readings are compared.

What Rauanjärvi is good for

From access and monitoring records, not editorial picks.

Deep water33.5 ft surveyed max depth

Swimming conditions

No reading

Limited data

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

Whether Rauanjärvi is safe to swim in today is a call for the Finnish Environment Institute (Syke) and the ELY Centres and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Rauanjärvi

These are the measurements Syke publishes for Rauanjärvi. More on the source.

Murky, only visible to about 4.3 ft. Phosphorus 9.7 µg/L. Chlorophyll-a 5.8 µg/L. TSI 47.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	1.3m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	9.7µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	5.8µg/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.	47	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Rauanjärvi

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

Lake Details

Max depth

10.2 m

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Stays near Rauanjärvi

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Fishing Rauanjärvi

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

Frequently asked questions about Rauanjärvi

Where is Rauanjärvi?: Rauanjärvi is a lake in Juuka, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Rauanjärvi?: Rauanjärvi in Juuka, Finland has official water-quality measurements, shown as reported. Water clarity: 1.3 m visibility. Phosphorus: 9.7 µg/L. Chlorophyll-a (algae): 5.8 µg/L. Maximum depth: 33.5 ft.
Is Rauanjärvi safe to swim in?: Rauanjärvi 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 Rauanjärvi?: Rauanjärvi has a maximum depth of 33.5 feet.

Explore Rauanjärvi across LakeQuality

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Species activity outlook by water temperature and season

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Where this data comes from

18 measurements from 1 monitoring station, 2018–2024. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Finnish Environment Institute (Syke) and ELY Centressyke-vesla18 samples · 2018–2024

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

23865

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