Neusiedler See
AustriaView mapDirections
UBA publishes the water-quality measurements for Neusiedler See. Here is what has been measured.
- Limited data
Neusiedler See in Austria has official water-quality measurements, shown as reported. Water clarity: 0.2 m visibility. Phosphorus: 31 µg/L.
How Neusiedler See is classified
Neusiedler See in Austria 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 and phosphorus, but not algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Environment Agency Austria (Umweltbundesamt), via UNEP GEMS/Water.
Neusiedler See is a lake in Unknown County, Austria.
Source: the Environment Agency Austria (Umweltbundesamt), via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2021-10-18. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Neusiedler See is safe to swim in today is a call for the Environment Agency Austria (Umweltbundesamt), via UNEP GEMS/Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Neusiedler See
These are the measurements UBA publishes for Neusiedler See. More on the source.
Very murky, less than 0.8 ft of visibility. Phosphorus 31 µg/L. TSI 67.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.24m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 31µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading 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. | 67 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Neusiedler See
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Neusiedler See
Compare lakeside cabins, hotels, and vacation rentals near Neusiedler See in Austria — 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 Neusiedler See
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 Neusiedler See’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Neusiedler See
Frequently asked questions about Neusiedler See
Where is Neusiedler See?
- Neusiedler See is a lake in Austria. This page reports official water-quality measurements, shown as reported.
What is the water quality of Neusiedler See?
- Neusiedler See in Austria has official water-quality measurements, shown as reported. Water clarity: 0.2 m visibility. Phosphorus: 31 µg/L.
Is Neusiedler See safe to swim in?
- Neusiedler See 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.
Explore Neusiedler See across LakeQuality
More lakes in Austria
Where this data comes from
171 measurements from 4 monitoring stations, 2016–2021. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- European Environment Agency
europeanenvironmentagenc171 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (4)
AUT00231AUT00232AUT00233AUT00234
Authority classifications are shown as the authority published them. See where the data comes from and data sources.