Rio de Janeiro

As of October 26, 2026, the reservoirs we track across Rio de Janeiro that report live levels hold roughly 461 hm³ of water — about 76.2% of their combined capacity. Taken together, Rio de Janeiro's reservoirs are within their normal operating range.

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

Over the most recent week on record, 1 reservoir fell across Rio de Janeiro.

Storage figures for Rio de Janeiro come from ONS; the most recent reading is from October 26, 2026. Each reservoir below links to its own page with full history and seasonal context.