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State · Brazil
Rondônia
7.7% average fill
Reservoirs
4
Volume stored
360 hm³
Usable capacity
4,658 hm³
Critical
3
Low level
1
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Reservoirs
3 basins4 reservoirs
MADEIRA
2 reservoirs · avg 1.3% · 2 criticalJAMARI
1 reservoirs · avg 10.7% · 1 criticalCOMEMORACAO
1 reservoirs · avg 36.2%About reservoirs in Rondônia
As of October 27, 2026, the reservoirs we track across Rondônia that report live levels hold roughly 360 hm³ of water — about 7.7% of their combined capacity. Taken together, Rondônia's reservoirs are critically low.
Across the region, 3 reservoirs are at critically low levels and 1 is low. RONDON II is the fullest at 36.2%, while JIRAU is the lowest at 0.0%.
Over the most recent week on record, 2 reservoirs fell across Rondônia.
Storage figures for Rondônia come from ONS; the most recent reading is from October 27, 2026. Each reservoir below links to its own page with full history and seasonal context.
Rondônia at a glance
- Reservoirs tracked
- 4
- Average fill
- 7.7%
- Water stored
- 360 hm³
- Combined capacity
- 4,658 hm³
- At critically low levels
- 3
- Fullest
- RONDON II (36.2%)
- Lowest
- JIRAU (0.0%)
- Last updated
- October 27, 2026