Vistula in Warsaw Hits Record Low Again

29 August 2026 Poland Radar 0 Comments

Vistula low water Warsaw: the Warsaw-Bulwary gauge read 100 cm, equal to 0 cm on the old scale, with the lowest flow since 1985.

Vistula low water Warsaw reached a new extreme on Friday, August 28. The Warsaw-Bulwary gauge read 100 cm, which equals 0 cm on the previous scale.

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Vistula low water Warsaw: what changed on the gauge

On November 1, 2025 authorities changed the gauge zero at Warsaw-Bulwary. Consequently, they lowered the reference by exactly 100 cm. Therefore, readings now show higher numbers for the same water level. However, Wody Polskie (the national water management agency) stressed that the change was technical only. In addition, the new zero corresponds to 75.168 m above sea level in the EVRF2007 system.

On Friday the gauge showed 100 cm on the current scale. Consequently, that value corresponds exactly to 0 cm on the old scale. Moreover, the river surface sat around six centimetres lower than the record low from August 2025. Therefore Warsaw now records one of its lowest flows in modern records.

Flow, history and practical impact

Current estimates put flow at roughly 146 m3/s through the city section. However, measurements from early August 2026 at 105 cm noted about 154 m3/s. In addition, long-term archives list historical lows near 80–113 m3/s from early 20th century sources. Nevertheless, official multi-year series show a low around 147 m3/s in January 1985. Consequently, the present flow sits at near-historic minima in modern records.

Low water affects navigation and riverfront life. Therefore small pleasure boats may avoid the main channel. Moreover, river tours and seasonal ferries may reduce schedules. In addition, exposed mudflats change the city skyline at Bulwary. However, deep holes still exist in the main current, so people should not wade into unfamiliar stretches.

Institutions, measurements and public messaging

IMGW (the national meteorological institute) and Wody Polskie provide the official updates. Consequently, follow their bulletins for level and flow forecasts. Moreover, the gauge zero does not equal depth. Therefore a low station reading does not translate directly into safe walking conditions. In addition, the gauge marks a reference point, not the absolute channel depth.

💡 GOOD TO KNOW: If you live or work near the river, sign up for city alerts and follow Wody Polskie and IMGW. For emergencies call 112. If you need municipal support after property damage, you may need a PESEL (Polish national ID number). Also note NFZ (public health insurer) and ZUS (social insurance) when seeking official help. Moreover, do not cross cordoned riverbanks. Finally, beware of fines (mandat) for entering restricted zones and for interfering with river structures.

For expats the stakes are practical and immediate. Consequently, low flows can disrupt river transport and local businesses. Moreover, they can change air quality near exposed sediments. Therefore renters and homeowners should check their insurance clauses. In addition, event organisers must consider cancellations or altered access to the Bulwary riverfront.

City services can deploy temporary measures. However, long-term solutions require basin-wide hydrological management. Moreover, climate patterns and human water use shape future risk. Therefore local residents and newcomers should watch forecasts and official guidance.

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