Rantajärvi
Savonlinna, FinlandView mapDirections
Syke publishes the water-quality measurements for Rantajärvi. Here is what has been measured.
- 51 ft max depth
- Limited data
Rantajärvi in Savonlinna, Finland has official water-quality measurements, shown as reported. Water clarity: 5.2 m visibility. Phosphorus: 5.6 µg/L. Chlorophyll-a (algae): 2.3 µg/L. Maximum depth: 50.9 ft.
How Rantajärvi is classified
Rantajärvi 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.
Rantajärvi is a lake in Savonlinna County, Finland with a maximum depth of 51 feet.
Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2024-10-21. Methodology: how these readings are compared.
What Rantajärvi is good for
From access and monitoring records, not editorial picks.
- Clear water17.1 ft of visibility
- Deep water50.9 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Rantajärvi 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.
Water quality measurements for Rantajärvi
These are the measurements Syke publishes for Rantajärvi. More on the source.
Crystal clear, you can see 17.1 ft down. Phosphorus 5.6 µg/L. Chlorophyll-a 2.3 µg/L. TSI 35.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.2m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 5.6µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 2.3µg/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. | 35 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Rantajärvi
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
15.5 m
Stays via Stay22
Stays near Rantajärvi
Compare lakeside cabins, hotels, and vacation rentals near Rantajärvi in Savonlinna, 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 Rantajärvi
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 Rantajärvi’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Rantajärvi
Frequently asked questions about Rantajärvi
Where is Rantajärvi?
- Rantajärvi is a lake in Savonlinna, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Rantajärvi?
- Rantajärvi in Savonlinna, Finland has official water-quality measurements, shown as reported. Water clarity: 5.2 m visibility. Phosphorus: 5.6 µg/L. Chlorophyll-a (algae): 2.3 µg/L. Maximum depth: 50.9 ft.
Is Rantajärvi safe to swim in?
- Rantajärvi 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 Rantajärvi?
- Rantajärvi has a maximum depth of 50.9 feet.
Explore Rantajärvi across LakeQuality
More lakes in Finland
Where this data comes from
8 measurements from 2 monitoring stations, 2022–2024. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Finnish Environment Institute (Syke) and ELY Centres
syke-vesla8 samples · 2022–2024
Analytical methods
- SYKE VESLA
Monitoring station identifiers (2)
6406391412
Authority classifications are shown as the authority published them. See where the data comes from and data sources.