Rio Grande do Sul

As of September 9, 2026, the reservoirs we track across Rio Grande do Sul that report live levels hold roughly 3,826 hm³ of water — about 29.9% of their combined capacity. Taken together, Rio Grande do Sul's reservoirs are low.

None of the tracked reservoirs are currently at critically low levels. D. FRANCISCA is the fullest at 101.5%, while FOZ CHAPECO is the lowest at 50.6%.

Over the most recent week on record, 1 reservoir rose and 2 reservoirs fell across Rio Grande do Sul.

Storage figures for Rio Grande do Sul 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.