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LakeQuality

Updated 2025

Best lakes to swim in Austria

Best lakes in Austria: 246 designated bathing waters are rated Excellent for 2025. This list is the 25 with the longest run of that class, of 254 rated sites. The class measures bacteria — it is not a LakeQuality A–F grade or a safety clearance.

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Longest-running Excellent lakes in Austria

  1. Achensee, NordExcellent · Excellent 11/11 seasons
  2. Achensee, SüdExcellent · Excellent 11/11 seasons
  3. Afritzer See, SüdostExcellent · Excellent 11/11 seasons
  4. Afritzer See, SüdwestExcellent · Excellent 11/11 seasons
  5. Altausseersee NordExcellent · Excellent 11/11 seasons
  6. Altausseersee SüdExcellent · Excellent 11/11 seasons
  7. Altausseersee WestExcellent · Excellent 11/11 seasons
  8. Alte Donau, Gänsehäufel OstExcellent · Excellent 11/11 seasons
  9. Alte Donau, Gänsehäufel SüdExcellent · Excellent 11/11 seasons
  10. Alte Donau, Gänsehäufel WestExcellent · Excellent 11/11 seasons
  11. Alte Donau, KaiserwasserExcellent · Excellent 11/11 seasons
  12. Alte Donau, Strandbad Alte DonauExcellent · Excellent 11/11 seasons
  13. Alte Donau, Untere Alte Donau (Badestege)Excellent · Excellent 11/11 seasons
  14. Alter Rhein, LustenauExcellent · Excellent 11/11 seasons
  15. Attersee, AtterseeExcellent · Excellent 11/11 seasons
  16. Attersee, LitzlbergExcellent · Excellent 11/11 seasons
  17. Attersee, SeewalchenExcellent · Excellent 11/11 seasons
  18. Attersee, SteinbachExcellent · Excellent 11/11 seasons
  19. Attersee, UnterachExcellent · Excellent 11/11 seasons
  20. Attersee, WeißenbachExcellent · Excellent 11/11 seasons
  21. Attersee, WeyreggExcellent · Excellent 11/11 seasons
  22. Aubad, TullnExcellent · Excellent 11/11 seasons
  23. Ausee 1, BlindenmarktExcellent · Excellent 11/11 seasons
  24. Ausee 2, BlindenmarktExcellent · Excellent 11/11 seasons
  25. Ausee 3, BlindenmarktExcellent · Excellent 11/11 seasons

Frequently asked questions

What are the best lakes to swim in Austria?
246 of the designated bathing waters in Austria are rated Excellent for 2025. This page lists the 25 with the longest run of that class. The rating measures bacteria, not nutrients or clarity.
Is it safe to swim in Austria lakes?
An Excellent class is not a safety clearance. It does not cover algal blooms, depth, or currents. Conditions change after heavy rain. Check local notices the day you go.
Does LakeQuality give A–F grades for lakes in Austria?
No. Best-lakes lists for Austria use the authority's own Excellent to Poor class. A letter on the LakeQuality scale would be an invention.

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Where to stay near Austria

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