Poland · voivodeship · official name Mazowiecki regionalny

Bathing water quality in Masovia (outside Warsaw), Poland

Masovia (outside Warsaw) has 31 official bathing waters in the EEA dataset for the 2025 season (18 river and 13 lake). 38.7% were classified Excellent — 20 points below the 58.7% across Poland — and 1 was Poor. By subregion, the Excellent share is highest in Radomski (55.6% of 9) and lowest in Płocki (16.7% of 6).

Jakość wody w kąpieliskach: Mazowiecki regionalny

Spośród 31 oficjalnych kąpielisk UE (Mazowiecki regionalny) 38,7% miało w 2025 r. klasyfikację „doskonała”; liczba kąpielisk z oceną „niedostateczna”: 1.

Lake Lucień in summer, Masovia
Photo: Tadeusz Dąbrowski, Wikimedia Commons, CC BY-SA 3.0
31

official bathing waters

38.7%

Excellent in 2025

1

Poor in 2025

Not live: these are annual official classifications. Check the competent authority for today’s notices before swimming.
Before you swim in Masovia (outside Warsaw)

State Sanitary Inspection (GIS)

Bathing season in Poland: Set for each site by the municipality, within 1 June – 30 September. Municipal councils designate bathing sites; the service lists each one with its current assessment.

Annual EEA classes do not show temporary bans, short-term pollution or algae alerts. National information last checked 2026-11-01.

Serwis Kąpieliskowy (GIS) →

Map of official bathing waters in Masovia (outside Warsaw)

Excellent 12Good 8Sufficient 1Poor 1Not classified 9
BRATOSZEWO: Excellent (2025)ZALEW SZYDŁOWIEC: Excellent (2025)ZWOLEŃ: Excellent (2025)Kąpielisko nr 1-Summer Playground North: Excellent (2025)KĄPIELISKO KRUBIN: Excellent (2025)Kąpielisko nr 2 Borki: Excellent (2025)Zalew Miejski w Makowie Mazowieckim: Excellent (2025)KĄPIELISKO NA RZECE BUG PRZY UL. SZMITA W DROHICZYNIE: Excellent (2025)KĄPIELISKO JEZIORO IŁŻECKIE: Excellent (2025)PLAŻA MIEJSKA NAD RZEKĄ NARWIĄ: Excellent (2025)Kąpielisko nr 1 Borki: Excellent (2025)Kąpielisko nr 2-Summer Playground East 1: Excellent (2025)KĄPIELISKO NA ZBIORNIKU WODNYM RÓWCE GM. ZBUCZYN: Not classified (2025)KĄPIELISKO PRZY PLAŻY W SOCZEWCE: Not classified (2025)Zalew Nowomiejski: Not classified (2025)Kąpielisko Brok: Not classified (2025)ZACISZE BIS: Not classified (2025)Kąpielisko nr 3-Summer Playground East 2: Not classified (2025)Krypianka: Not classified (2025)Plaża Miejska w Wyszkowie: Not classified (2025)Kąpielisko Harcerskiej Bazy Obozowej Lucień w miejscowości Lucień: Not classified (2025)Kąpielisko SYRENKA: Good (2025)KĄPIELISKO STAW GÓRNY: Good (2025)JEZIORO GÓRSKIE (KĄPIELISKO PRZY PLAŻY PATELNIA): Good (2025)KĄPIELISKO MIEJSKIE SOBÓTKA: Good (2025)KĄPIELISKO MIEJSKIE ZALEW NAD LIWCEM K/WĘGROWA: Good (2025)KĄPIELISKO MIEJSKIE W OSTROŁĘCE: Good (2025)KOZIENICE: Good (2025)ZALEW ŻYRARDOWSKI: Good (2025)ZALEW ŁOSICKI: Sufficient (2025)Kąpielisko Miejskie nad Zalewem Muchawka: Poor (2025)RadomskiOstrołęckiPłockiSiedleckiCiechanowskiŻyrardowskiPomeraniaGreater PolandWarmia-MasuriaKuyavia-PomeraniaLublinSilesiaŁódźPodlaskieHoly Cross (Świętokrzyskie)Warsaw capital region
How to read this map: Each dot is one official bathing water, coloured by its 2025 rating; select a dot to open that site. The white area is this region; neighbouring regions are shaded. Sea and large lakes are blue, neighbouring countries grey. Positions: official EEA coordinates. Boundaries: Eurostat NUTS 2024, generalised (© EuroGeographics); lakes: Natural Earth. Outlines are simplified, so a few shoreline dots can sit just offshore.

Masovia (outside Warsaw) by subregion

Sites are placed in the Eurostat NUTS 3 subregions that contain their reported coordinates.

2025 EEA classes by subregion
SubregionSitesExcellentGoodSufficientPoorNot classified
Radomski95 (55.6%)3001
Ostrołęcki73 (42.9%)1003
Płocki61 (16.7%)2003
Siedlecki51 (20%)1111
Ciechanowski32 (66.7%)0001
Żyrardowski10 (0%)1000

Sea, lakes and rivers in Masovia (outside Warsaw)

2025 EEA classes by water type
Water typeSitesExcellentGoodSufficientPoorNot classified
Lake136 (46.2%)3004
River186 (33.3%)5115

Coastal waters are assessed against stricter bacterial limits than lakes and rivers but are diluted far more; see how the classes are calculated.

Most consistent Excellent sites

Ordered by the length of the unbroken Excellent run ending in 2025.

  1. KĄPIELISKO KRUBIN 5 seasons · Ciechanowski
  2. KĄPIELISKO NA RZECE BUG PRZY UL. SZMITA W DROHICZYNIE 5 seasons · Siedlecki
  3. PLAŻA MIEJSKA NAD RZEKĄ NARWIĄ 5 seasons · Ciechanowski
  4. KĄPIELISKO JEZIORO IŁŻECKIE 4 seasons · Radomski
  5. ZWOLEŃ 4 seasons · Radomski
  6. Kąpielisko nr 1-Summer Playground North 2 seasons · Ostrołęcki
  7. Kąpielisko nr 2-Summer Playground East 1 2 seasons · Ostrołęcki
  8. BRATOSZEWO 1 season · Płocki
  9. Kąpielisko nr 1 Borki 1 season · Radomski
  10. Kąpielisko nr 2 Borki 1 season · Radomski
  11. Zalew Miejski w Makowie Mazowieckim 1 season · Ostrołęcki
  12. ZALEW SZYDŁOWIEC 1 season · Radomski

Rated Poor in 2025

For a Poor site the Bathing Water Directive requires management measures, including a bathing prohibition or advice against bathing, so check the authority before visiting.

Changes from 2024 to 2025

Improved (3)

Declined (0)

None.

How Masovia (outside Warsaw) rated since 2015

Counts for the sites in today’s 2025 inventory; the Excellent share is calculated over classified sites only.

SeasonClassifiedExcellentExcellent sharePoor
2025221254.5%1
202421942.9%1
202318950%1
2022191157.9%0
20219666.7%1
20204125%1
20193133.3%0
20183266.7%0
201722100%0
20163266.7%0
20153266.7%0

All 31 official bathing waters in Masovia (outside Warsaw)

Grouped by subregion, alphabetical within each group. Open a site for its 2015–2025 history, nearby alternatives, weather forecast and the national profile link.

Download all 31 sites as CSV (classes 2015–2025, coordinates, nearest place; EEA data, CC BY 4.0)

Radomski 9 sites · 55.6% Excellent
Ostrołęcki 7 sites · 42.9% Excellent
Płocki 6 sites · 16.7% Excellent
Siedlecki 5 sites · 20% Excellent · 1 Poor
Ciechanowski 3 sites · 66.7% Excellent
Żyrardowski 1 site · 0% Excellent

Compared with other voivodeships in Poland

#VoivodeshipSitesExcellentPoor
1Kuyavia-Pomerania4175.6%0
2Pomerania15072.7%0
3Warmia-Masuria5666.1%0
4Greater Poland10965.1%0
5Lublin3961.5%4
6West Pomerania14761.2%0
7Opole1560%0
8Lubusz3655.6%0
9Lower Silesia2352.2%0
10Silesia2646.2%1
11Masovia (outside Warsaw)3138.7%1
12Łódź2433.3%4
13Podlaskie2128.6%0
14Holy Cross (Świętokrzyskie)1926.3%2
15Lesser Poland2020%2

Voivodeships with at least 15 official bathing waters. Size, water type and how densely sites are designated differ, so the table is context rather than a verdict.

Quick answers

How many bathing waters in Masovia (outside Warsaw) were rated Excellent in 2025?
12 of 31 (38.7%) in the official EEA 2025 classification; 8 were Good, 1 Sufficient and 1 Poor, and 9 had no class. That ranks Masovia (outside Warsaw) 11 of 15 Poland voivodeships by Excellent share.
Which subregion of Masovia (outside Warsaw) has the highest share of Excellent sites?
Radomski: 55.6% of its 9 sites were Excellent in 2025. Ostrołęcki follows with 42.9%. Only subregions with at least five sites are compared; see the full table.
Which beaches in Masovia (outside Warsaw) have the best long-term record?
The longest current Excellent run is 5 seasons (KĄPIELISKO KRUBIN).
Were any bathing waters in Masovia (outside Warsaw) rated Poor?
Yes, 1: Kąpielisko Miejskie nad Zalewem Muchawka.
Where do I check whether swimming is allowed today?
On Serwis Kąpieliskowy (GIS) (State Sanitary Inspection (GIS)). Temporary bans, pollution alerts and closures are published there and on signs at the water, not in the annual EEA class.

Poland overview · All voivodeships of Poland · Bathing waters near Warsaw · Bathing season dates

Sources and method

Bathing-water records: European Environment Agency (EEA), data and coordinates reported by Poland, licensed CC BY 4.0. Region and subregion boundaries: Eurostat NUTS 2024 (© EuroGeographics for the administrative boundaries). Place names: GeoNames (CC BY 4.0). A site belongs to the area that contains its reported coordinates; a site up to 10 km off the generalised coastline is placed in the nearest area of Poland. Counts, shares and rankings are calculated by BathingWaterFinder from the official records.