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LakeQuality

Lakes in Sweden

Find lakes in Sweden: 210 designated lake bathing waters classified under the EU Bathing Water Directive. 173 are rated Excellent for 2025.

The same country also has official phosphorus, chlorophyll-a, and Secchi for 55 named lakes, sampled 2021–2023. Those are nutrient and clarity readings, a different measurement from the Directive's bacteria class.

Updated 2025

Excellent: 173Good: 19Sufficient: 3Poor: 6Not classified: 9

Lake map

Map shows 265 lakes with coordinates

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Best-rated lakes to swim in Sweden

Officially classified Excellent for the 2025 bathing season, ranked by how often that class has held. Full best-lakes list →

  1. Albysjön, FlottsbrobadetExcellent · Excellent 11/11 seasons
  2. Almenäs Badplats, ÖresjöExcellent · Excellent 11/11 seasons
  3. ÄngsholmsbadetExcellent · Excellent 11/11 seasons
  4. ÄrsholmstjärnExcellent · Excellent 11/11 seasons
  5. ÅsabadetExcellent · Excellent 11/11 seasons
  6. AxamobadetExcellent · Excellent 11/11 seasons
  7. Björnöbadet, BadvikenExcellent · Excellent 11/11 seasons
  8. Blå LagunenExcellent · Excellent 11/11 seasons
  9. BlötanExcellent · Excellent 11/11 seasons
  10. Djupasjön, YxnanäsExcellent · Excellent 11/11 seasons
  11. Drevviken, Vendelsö GårdExcellent · Excellent 11/11 seasons
  12. EkillabadetExcellent · Excellent 11/11 seasons
  13. Flatenbadet, barnbadetExcellent · Excellent 11/11 seasons
  14. Gamla ÖrlenbadetExcellent · Excellent 11/11 seasons
  15. GingsjönExcellent · Excellent 11/11 seasons

Every rated bathing water in Sweden

Places in Sweden

Named lakes

LakePlaceTotal phosphorusChlorophyll-aSecchiYear
Bastetrask Lake—3.6 µg/L1.4 µg/L3.5 m2023
Bergtrasket Lake—23 µg/L6.5 µg/L1.6 m2023
Bjannsjon—9.4 µg/L2.7 µg/L2.1 m2023
Bosjon—3.7 µg/L1.6 µg/L3.7 m2023
Branntrasket Lake—8.8 µg/L4.2 µg/L2.3 m2023
Brunnsjon—11 µg/L2.7 µg/L1.9 m2021
Bysjon—9.6 µg/L2.9 µg/L2.7 m2023
Ekholmssjon—21 µg/L7.1 µg/L2.3 m2021
Fjarasjo Lake—7.1 µg/L2.8 µg/L3.5 m2023
Fjatsjon Ovre—6.5 µg/L1.7 µg/L4.1 m2023
Fyrsjon—4.9 µg/L2.2 µg/L3.9 m2023
Gosjon—15 µg/L11 µg/L1.4 m2023
Grissjon—6.9 µg/L3.2 µg/L2.5 m2021
Hagasjon—7.6 µg/L3.8 µg/L2.2 m2021
Hallsjon—6.7 µg/L2.2 µg/L3.2 m2021
Havgardssjon—45 µg/L13 µg/L1.5 m2021
Hinnasjon—12 µg/L4.7 µg/L2.2 m2021
Hjartsjon—5.3 µg/L1.3 µg/L5.6 m2023
Hokesjon—5.2 µg/L2.8 µg/L6.7 m2021
Humsjon—11 µg/L5.6 µg/L2.9 m2021
Ivosjon—8.0 µg/L3.5 µg/L4.6 m2023
Krageholmssjon—52 µg/L17 µg/L1.7 m2023
Krankesjon—31 µg/L13 µg/L1.9 m2023
Langsjon—9.7 µg/L3.3 µg/L1.5 m2023
Limmingsjon—4.3 µg/L2.9 µg/L3.4 m2023
Munksjon—30 µg/L18 µg/L1.6 m2022
Ogertrasket Lake—11 µg/L2.6 µg/L1.3 m2023
Ojsjon—5.9 µg/L2.3 µg/L5.2 m2023
Ostra Ringsjon—36 µg/L12 µg/L2.2 m2022
Oversjon—5.4 µg/L3.0 µg/L4.2 m2021
Overudssjon—42 µg/L12 µg/L1.0 m2023
Ovre Skarsjon—7.2 µg/L2.2 µg/L2.2 m2023
Rammsjon—20 µg/L7.0 µg/L0.8 m2021
Remmarsjon—9.2 µg/L2.8 µg/L2.3 m2023
Rundbosjon—42 µg/L5.9 µg/L1.3 m2023
Sidensjon—27 µg/L7.8 µg/L1.5 m2023
Skarsjon—7.8 µg/L3.2 µg/L5.1 m2023
Spjutsjon—3.9 µg/L1.3 µg/L6.0 m2023
Stensjon—5.9 µg/L2.2 µg/L2.2 m2023
Stor-Arasjon—5.9 µg/L2.7 µg/L3.4 m2023
Stor-Backsjon—11 µg/L2.7 µg/L2.4 m2023
Stor-Bjorsjon—2.8 µg/L1.3 µg/L4.3 m2023
Stor-Tjultrasket Lake—2.7 µg/L0.90 µg/L8.5 m2023
Stora Skarsjon—7.4 µg/L3.7 µg/L3.5 m2023
Stora Skarsjon—16 µg/L5.6 µg/L1.1 m2021
Storasjo Lake—11 µg/L3.5 µg/L2.7 m2023
Svinarydsjon—15 µg/L4.2 µg/L2.0 m2023
Taftestrasket Lake—10 µg/L5.4 µg/L2.5 m2023
Tangerdasjon—26 µg/L8.2 µg/L1.8 m2021
Tangersjo Lake—8.1 µg/L2.5 µg/L4.4 m2021
Ulvsjon—6.1 µg/L1.9 µg/L3.7 m2021
Valasjon—9.6 µg/L2.6 µg/L2.2 m2023
Vaster-Rannobodsjon—10 µg/L3.7 µg/L2.5 m2023
Vastra Solsjon—1.9 µg/L2.1 µg/L6.7 m2023
Vittrasket Lake—3.5 µg/L1.1 µg/L8.0 m2023

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Frequently asked questions

Which lakes in Sweden are best to swim in?
173 of 210 designated bathing waters in Sweden are rated Excellent for 2025 under the EU Bathing Water Directive. That class measures E. coli and intestinal enterococci only — it is not a safety clearance.
Is it safe to swim in Sweden lakes?
The official class is a bacteriological rating, not a safety clearance. It does not cover algal blooms, nutrients, water clarity, currents, or depth. Conditions change after heavy rain. Check local signage and the operator's current notices before entering the water.
How is lake water quality measured in Sweden?
55 named lakes in Sweden have official phosphorus, chlorophyll-a, and Secchi from the Swedish Agency for Marine and Water Management, via UNEP GEMS/Water, 2021–2023. These are the authority's own measurements, shown as reported.
Whose ratings do the Sweden lake pages show?
The publishing authority's own. Pages for lakes in Sweden show the values and classes that authority reports, with the season or year each was taken.

Lakes in other countries

Lakes in Europe

Directory of official lake water quality

Lake campgrounds in Europe

Rated bathing waters at campgrounds

Best lakes in Sweden

Excellent-rated bathing waters

Clearest lakes in Sweden

Named lakes ranked by Secchi

Lakes in Switzerland

Water quality for lakes in Switzerland

Lakes in Denmark

Water quality for lakes in Denmark

Lakes in Spain

Water quality for lakes in Spain

Lakes in Lithuania

Water quality for lakes in Lithuania

Lakes in Belgium

Water quality for lakes in Belgium

Lakes in Czechia

Water quality for lakes in Czechia

Lakes in Portugal

Water quality for lakes in Portugal

Lakes in Slovakia

Water quality for lakes in Slovakia

Where to stay near Sweden

Lakeside cabins, hotels, and vacation rentals near Sweden — live availability from Booking.com, Vrbo and Expedia.

Top-rated places to stay near Sweden

Prices for Sep 25–27, 4 adults. Change dates on the map below.

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Source: European Environment Agency (EEA), Bathing Water Directive. CC-BY 4.0.

UNEP GEMS/Water Global Freshwater Quality Archive v3 (OPEN / CC BY 4.0). Surface total phosphorus, chlorophyll-a, and Secchi from 2016 onward. Published as the authority reports it.

Monitoring: the Swedish Agency for Marine and Water Management, via UNEP GEMS/Water.