# Water levels and quality in Czech reservoirs

> Live situation record from CLSTR: https://clstr.news/situations/water-levels-and-quality-in-czech-reservoirs
> Updated: 2026-08-15T04:06:49.000Z. Sources: 5. Developments: 2.

Water conditions in the Czech Republic have fluctuated due to environmental factors and weather. In early August, monitoring in the Moravian-Silesian Region showed mixed results for swimming; while Stříbrné jezero was rated suitable, the Budišov nad Budišovkou reservoir exhibited degraded sensory properties. At Hlučínské jezero, water quality remained stable despite the presence of freshwater jellyfish, which officials noted “do not pose a health risk.”

By mid-August, dry weather led to low water levels at several reservoirs. At the Hracholusky Reservoir, receding waters created wide sandy beaches and narrow channels for boat tours. At the Lipno Reservoir, despite social media concerns regarding cyanobacteria, local operators reported stable tourism, though debates continue regarding the ecological impact of infrastructure expansion and visitor numbers.

## Timeline

### 2026-08-15: Czech reservoirs reveal sandy beaches due to low water levels

Low water levels at Czech reservoirs like Hracholusky and Lipno have revealed new sandy beaches, while sparking debates over tourism development and ecological impacts.

3 sources. https://clstr.news/cluster/pilk-reservoir-reveals-sandy-beaches-due-to-low-water-levels

### 2026-08-09: Water quality and environmental updates in the Czech Republic

Water quality monitoring in Moravian-Silesia shows stable conditions at Hlučínské jezero despite jellyfish sightings, while wetland revitalization in Sedmihorské mokřady has significantly increased water levels

2 sources. https://clstr.news/cluster/water-quality-and-environmental-updates-in-the-czech-republic

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Cite as: Water levels and quality in Czech reservoirs. CLSTR, https://clstr.news/situations/water-levels-and-quality-in-czech-reservoirs