The Vistula River in Warsaw hit a historic low of 10 cm at the Bulwary hydrological station on Friday night, confirmed by the Institute of Meteorology and Water Management (IMGW), marking the lowest recorded level in the city’s history.
Historic Low Water Level Recorded at Bulwary Station
Record-Breaking Measurement
A historic low water level of 10 cm was recorded on Friday night (August 22–23, 2025) at the Warsaw–Bulwary hydrological station, the lowest ever measured in the Polish capital. According to IMGW, this level was first noted at 20:00 on August 22 and remained unchanged in subsequent hours.
Consistent Decline in Water Levels
The Vistula’s water levels in Warsaw have been steadily decreasing for weeks. Earlier this July, readings showed declines: 15 cm on July 5, 13 cm on July 6, and 11 cm on July 8. The recent reading of 10 cm represents a significant drop compared to previous records.
Causes and National Implications
IMGW attributes the low levels to prolonged rainfall shortages and high temperatures, leading to widespread hydrological drought. The institute reports that many rivers in Poland are currently below their periodic minimums. Forecasts suggest the exceptionally low levels in the Warsaw area will persist at least until Monday, August 25.
Transport Disruptions and Safety Risks
The drop in water levels has caused disruptions in Warsaw’s water transport. On August 12, ferry services on routes such as Cypel Czerniakowski–Saska Kępa (“Słonka”), most Poniatowskiego–Stadion Narodowy (“Pliszka”), and Podzamcze Fontanny–ZOO (“Wilga”) were suspended indefinitely due to the river’s low flow. Recreational navigation is also restricted, and exposed riverbed sections have created hazardous shoals. Officials warn against attempting to cross the riverbed, as it contains uneven terrain, deep pits, and sudden drops.
Context Against Historical Norms
The standard water level for the Bulwary gauge is approximately 230 cm. The highest recorded level in Warsaw’s history was 773 cm in July 1960. Recent analyses by media outlets have highlighted these comparisons as the Vistula’s current crisis deepens. Warsaw water utilities have clarified that the low levels are not currently affecting water supply, but the company continues to monitor the situation and maintain technical readiness.
Uncertain Future Dependent on Weather
The Vistula’s situation remains dynamic and highly dependent on weather conditions. IMGW states that sustained rainfall in the river basin would be required to raise levels, but the latest forecasts indicate minimal precipitation in the coming days, leaving the outlook uncertain.
Source: MiejskiReporter, IMGW (Institute of Meteorology and Water Management)