temperaturawody.pl

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Polska›Kąpielisko Miejskie w Ostrołęce›September

Water temperature Kąpielisko Miejskie w Ostrołęce - September

Average

21.4°C

Minimum

20.8°C

Maximum

22.6°C

Averages by year

Year	Average
2026	21.4°C

temperaturawody.pl

Water temperature, sanitary assessment and cyanobacteria at bathing sites in Poland. Always with the measurement date and source - because data freshness matters.

Data: GIS (sanitary inspection), IMGW, Open-Meteo (CC BY 4.0). Sources and licences.

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