CORUMBA-3
Goiás · PARANAIBA
Capacity
972 hm³
Coordinates
-16.786°N, 47.942°W
Operator
ONS
33.7% full
Current fill
33.7%vs 7 days ago
-1.0%losing
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 972 hm³ |
| Usable capacity | 259.7 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | CORUMBÁ |
| Province | Goiás |
| River basin | PARANAIBA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -16.786, -47.942 · Open in Google Maps
About CORUMBA-3
As of September 9, 2026, CORUMBA-3 is filled to 33.7% of its total capacity, holding roughly 88 hm³ of water out of a maximum 972 hm³. At this level the reservoir is low. Of that total, about 260 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-1.0 pts).
Across the readings we hold for CORUMBA-3 — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 27.5% (December 5, 2025) to a high of 71.7% (March 27, 2026). On average the reservoir is fullest around April and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANAIBA basin at 16.786°S, 47.942°W.
Key facts
- Current fill level
- 33.7%
- Water stored
- 88 hm³
- Total capacity
- 972 hm³
- Usable capacity
- 260 hm³
- 7-day change
- ▼ 1.0 pts
- Primary use
- Hydroelectric power
- River
- CORUMBÁ
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 16.786°S, 47.942°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 33.7% | 88 |
| 4 Sep 2026 | 34.7% | 90 |
| 28 Aug 2026 | 37.6% | 98 |
| 21 Aug 2026 | 40.8% | 106 |
| 14 Aug 2026 | 44.5% | 116 |
| 7 Aug 2026 | 43.5% | 113 |
| 31 Jul 2026 | 41.3% | 107 |
| 24 Jul 2026 | 37.9% | 98 |
| 17 Jul 2026 | 39.3% | 102 |
| 10 Jul 2026 | 45.0% | 117 |
| 3 Jul 2026 | 47.5% | 123 |
| 26 Jun 2026 | 49.8% | 129 |