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Excellent: 257Good: 28Sufficient: 9Not classified: 7Poor: 3
⚠️ Rated Poor in Finland — think twice
A Poor classification means persistent contamination across recent seasons. Authorities must advise against bathing, or ban it, at these sites.
- Ahvensaari Poor 📉 Going the wrong way — used to be Excellent
- Mariebad Poor 📉 Going the wrong way — used to be Excellent
- Pikkukoski Poor ⚠ Rated Poor within the last 3 seasons
✅ The safest bets in Finland
Sites that have held the top rating five seasons in a row — not a one-year fluke.
- Haukilahti Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Klobben Excellent ✅ Excellent five seasons straight
- Usminjarvi Excellent ✅ Excellent five seasons straight
- Kalliojarvi Excellent ✅ Excellent five seasons straight
- Kokonniemen Maauimala Excellent ✅ Excellent five seasons straight
- Storsvik Excellent ✅ Excellent five seasons straight
- Kokkila Excellent ✅ Excellent five seasons straight
- Oinila Excellent ✅ Excellent five seasons straight
- Lempoisten Uimala Excellent ✅ Excellent five seasons straight
- Rauhaniemi Excellent ✅ Excellent five seasons straight
- Tahmela Excellent ✅ Excellent five seasons straight
- Apia Excellent ✅ Excellent five seasons straight
📈 Turned around
These were rated Poor or Sufficient a few seasons ago and are Excellent today.
- Haukilahti Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Iso Kallahti Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Pororanta Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Slaktis Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Marsan Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Otanlahti Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Kalmari Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
- Campingen Excellent 📈 Turned around — was Poor or Sufficient a few seasons ago, Excellent now
📍 Destinations in Finland
- Helsinki
27 excellent of 38 within 35 km - Tampere
26 excellent of 27 within 35 km - Turku
6 excellent of 8 within 35 km
Common questions about swimming in Finland
Is it safe to swim in Finland?
Mostly yes. 87% of Finland's 304 officially monitored bathing sites hold the top "Excellent" class in the 2025 assessment, but 3 sites are rated Poor — bathing there is advised against or banned all season.
Which beaches in Finland should I avoid?
The 3 rated Poor: Ahvensaari, Mariebad, Pikkukoski. Poor means the site failed the minimum standard across four seasons of sampling.
Where is the water cleanest in Finland?
236 sites have held the top rating five seasons running — a far better signal than a single good year. Around Helsinki, Tampere, Turku you will find the densest clusters.
How often is water quality tested in Finland?
Through the whole bathing season. National sanitary authorities sample each official site for E. coli and intestinal enterococci, report to the European Environment Agency, and the published class reflects the last four seasons combined.
Ratings are the official season-long classification, computed from the last four seasons of sampling — not a live reading. After a storm any site can be temporarily worse; local advisories win.