Skip to main content
LakeQuality

Ylä-Raatinen Lake

Hankasalmi, FinlandView mapDirections

Syke publishes the water-quality measurements for Ylä-Raatinen Lake. Here is what has been measured.

Clarity
0.7 m
Murkier than most
Secchi · sampled 2026
Phosphorus
26 µg/L
Typical for Finland
Measured by Syke
Chlorophyll-a
9.5 µg/L
Typical for Finland
Measured by Syke
Max depth
1.8 m
Bathymetric survey
  • 6 ft max depth
  • Limited data

Ylä-Raatinen Lake in Hankasalmi, Finland has official water-quality measurements, shown as reported. Water clarity: 0.7 m visibility. Phosphorus: 26 µg/L. Chlorophyll-a (algae): 9.5 µg/L. Maximum depth: 5.9 ft.

Loading map…

How Ylä-Raatinen Lake is classified

Ylä-Raatinen Lake 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.

Ylä-Raatinen Lake is a lake in Hankasalmi County, Finland with a maximum depth of 6 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2026-02-05. 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 Ylä-Raatinen Lake 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 Ylä-Raatinen Lake →

Water quality measurements for Ylä-Raatinen Lake

These are the measurements Syke publishes for Ylä-Raatinen Lake. More on the source.

Very murky, less than 2.3 ft of visibility. Phosphorus 26 µg/L. Chlorophyll-a 9.5 µg/L. TSI 56.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)0.7mMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus26µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)9.5µg/LMeasured, 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.56Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Ylä-Raatinen Lake

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

Lake Details

Max depth

1.8 m

Stays via Stay22

Stays near Ylä-Raatinen Lake

Compare lakeside cabins, hotels, and vacation rentals near Ylä-Raatinen Lake in Hankasalmi, 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 Ylä-Raatinen Lake

Prices for Oct 9–11, 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 Ylä-Raatinen Lake’s readings

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


Or email

Fishing Ylä-Raatinen Lake

Frequently asked questions about Ylä-Raatinen Lake

Where is Ylä-Raatinen Lake?

Ylä-Raatinen Lake is a lake in Hankasalmi, Finland. This page reports official water-quality measurements, shown as reported.

What is the water quality of Ylä-Raatinen Lake?

Ylä-Raatinen Lake in Hankasalmi, Finland has official water-quality measurements, shown as reported. Water clarity: 0.7 m visibility. Phosphorus: 26 µg/L. Chlorophyll-a (algae): 9.5 µg/L. Maximum depth: 5.9 ft.

Measurements on this page ↑

Is Ylä-Raatinen Lake safe to swim in?

Ylä-Raatinen Lake 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.

Swimming on this page ↑

How deep is Ylä-Raatinen Lake?

Ylä-Raatinen Lake has a maximum depth of 5.9 feet.

Where this data comes from

15 measurements from 1 monitoring station, 2018–2026. 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-vesla15 samples · 2018–2026

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (1)
  • 25333

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