Piauí

As of September 9, 2026, the reservoirs we track across Piauí that report live levels hold roughly 1,150 hm³ of water — about 22.6% of their combined capacity. Taken together, Piauí's reservoirs are low.

None of the tracked reservoirs are currently at critically low levels.

Over the most recent week on record, 1 reservoir fell across Piauí.

Storage figures for Piauí come from ONS; the most recent reading is from September 9, 2026. Each reservoir below links to its own page with full history and seasonal context.