Kąpielisko Centralnego Ośrodka Sportu-Ośrodek Przygotowań Olimpijskich w Giżycku (COS-OPO)

Bathing site in Giżycko, giżycki county.

Lake water temperature - warmińsko-mazurskie →

Sanitary inspection data measured 21.08.2026
19.3° Celsius
Safe to swim

Sanitary rating: suitable. Test: Aug. 17, 2026, next: -.

Sanitary rating: history

Test dateRatingE. coliEnterococci
Aug. 17, 2026Suitable for swimming2124
July 28, 2026Suitable for swimming3543
July 10, 2026Suitable for swimming2816
June 25, 2026Suitable for swimming89
Aug. 18, 2025Suitable for swimming21
Aug. 4, 2025Suitable for swimming8329
July 15, 2025Suitable for swimming86
June 26, 2025Suitable for swimming1510

Full temperature archive →

Multi-year classification

YearClassification
2025Excellent
2024Excellent
2023Excellent
2022Excellent
2021Excellent
2020Unclassified

Bathing season: July 1, 2026 - Aug. 31, 2026

On the beach

🚻 Toilets 👕 Changing rooms 🗑️ Bins 🛶 Pier 🚧 Fenced area
Bathing season
July 1, 2026 - Aug. 31, 2026
Opening hours
10:00 - 18:00
Shoreline length
50 m
Operator
Centralny Ośrodek Sportu - Ośrodek Przygotowań Olimpijskich w Giżycku 11-500 Giżycko, ul. Moniuszki 22 [email protected] 87 44 17 100

The COS-OPO swimming area in Giżycko is located in the western part of the COS-OPO Yacht Harbor on the shore of Lake Kisajno—which is the southernmost body of water in the Mamry complex and also the last lake belonging to it. It borders the western shores of Giżycko. The lake is 8.5 km long and has a maximum width of 3 km. Its surface area is 1,896 ha. The average depth of the lake is 8.4 m, and its maximum depth is 25 m. To the north, it connects with Lake Dargin. Two canals branch off from the lake’s southern shore, leading to Lake Niegocin. The eastern canal is known as the Giżycko (Łuczański) Canal and runs through the center of Giżycko. The western canal is called the Piękna Góra Canal and leads to Lake Tajty and then, via the Niegociński Canal, to Lake Niegocin. Download the water profile for the swimming area

Monthly averages
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Frequently asked questions

Is it safe to swim in Kąpielisko Centralnego Ośrodka Sportu-Ośrodek Przygotowań Olimpijskich w Giżycku (COS-OPO)?

Safe to swim. Sanitary rating: suitable.

What is the water temperature in Kąpielisko Centralnego Ośrodka Sportu-Ośrodek Przygotowań Olimpijskich w Giżycku (COS-OPO)?

19.3°C (measured 21.08.2026).

Is there algae in Kąpielisko Centralnego Ośrodka Sportu-Ośrodek Przygotowań Olimpijskich w Giżycku (COS-OPO)?

No algae bloom reported. Check the status regularly in season.

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