Where is Vuonajärvi?

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

Is Vuonajärvi safe to swim in?

Vuonajärvi 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 Vuonajärvi?

Vuonajärvi has a maximum depth of 9.5 feet.

Vuonajärvi

Eurajoki, FinlandView map Directions

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

Clarity

2.7 m

Clearer than most

Secchi · sampled 2019

Phosphorus

17 µg/L

Typical for Finland

Measured by Syke

Chlorophyll-a

4.6 µg/L

Typical for Finland

Measured by Syke

Max depth

2.9 m

Bathymetric survey

10 ft max depth
Limited data

See the measurements Directions Where to stay

Vuonajärvi in Eurajoki, Finland has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 4.6 µg/L. Maximum depth: 9.5 ft.

Loading map…

How Vuonajärvi is classified

Vuonajärvi 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.

Vuonajärvi is a lake in Eurajoki County, Finland with a maximum depth of 10 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2019-10-23. 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 Vuonajärvi 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.

Get alerts for Vuonajärvi →

Water quality measurements for Vuonajärvi

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

Moderate clarity, visible to about 8.7 ft. Phosphorus 17 µg/L. Chlorophyll-a 4.6 µg/L. TSI 46.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.65m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	17µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	4.6µg/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.	46	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Vuonajärvi

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

Lake Details

Max depth

2.9 m

Stays via Stay22

Stays near Vuonajärvi

Compare lakeside cabins, hotels, and vacation rentals near Vuonajärvi in Eurajoki, Finland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Vuonajärvi

Prices for Oct 2–4, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Follow Vuonajärvi’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Vuonajärvi

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

Frequently asked questions about Vuonajärvi

Where is Vuonajärvi?: Vuonajärvi is a lake in Eurajoki, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Vuonajärvi?: Vuonajärvi in Eurajoki, Finland has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 4.6 µg/L. Maximum depth: 9.5 ft.
Is Vuonajärvi safe to swim in?: Vuonajärvi 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 Vuonajärvi?: Vuonajärvi has a maximum depth of 9.5 feet.

Explore Vuonajärvi across LakeQuality

Lake Fishing Forecast

Species activity outlook by water temperature and season

More lakes in Finland

Lakes in Finland

Official water quality for lakes in Finland

Lake water quality by country

EU bathing ratings and named-lake measurements

Where this data comes from

6 measurements from 1 monitoring station, 2019. 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-vesla6 samples · 2019

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

6788

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