CORUMBA
Goiás · PARANAIBA
Capacity
1,500 hm³
Coordinates
-17.987°N, 48.531°W
Operator
ONS
70.3% full
Current fill
70.3%vs 7 days ago
-1.3%losing
vs 1 year ago
+4.0%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 1,500 hm³ |
| Usable capacity | 1,024.9 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. -17.987, -48.531 · Open in Google Maps
About CORUMBA
As of July 28, 2026, CORUMBA is filled to 70.3% of its total capacity, holding roughly 720 hm³ of water out of a maximum 1,500 hm³. At this level the reservoir is within its normal operating range. Of that total, about 1,025 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-1.3 pts), and it is 4.0 points above its level on the same date a year earlier.
Across the readings we hold for CORUMBA — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 17.6% (November 28, 2025) to a high of 97.1% (April 3, 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 17.987°S, 48.531°W.
Key facts
- Current fill level
- 70.3%
- Water stored
- 720 hm³
- Total capacity
- 1,500 hm³
- Usable capacity
- 1,025 hm³
- 7-day change
- ▼ 1.3 pts
- Year-on-year
- ▲ 4.0 pts
- Primary use
- Hydroelectric power
- River
- CORUMBÁ
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 17.987°S, 48.531°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 70.3% | 720 |
| 24 Jul 2026 | 71.6% | 734 |
| 17 Jul 2026 | 75.8% | 777 |
| 10 Jul 2026 | 78.2% | 801 |
| 3 Jul 2026 | 80.6% | 827 |
| 26 Jun 2026 | 81.0% | 830 |
| 19 Jun 2026 | 81.2% | 833 |
| 12 Jun 2026 | 79.7% | 817 |
| 5 Jun 2026 | 79.6% | 816 |
| 29 May 2026 | 80.1% | 821 |
| 22 May 2026 | 80.0% | 819 |
| 15 May 2026 | 82.6% | 847 |
Frequently asked questions
What is the current water level of CORUMBA?
As of July 28, 2026, CORUMBA is at 70.3% of its capacity, holding approximately 720 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is CORUMBA reservoir full?
No. As of July 28, 2026, CORUMBA is within its normal operating range at 70.3% of its capacity, so it is not full.
Is the water level at CORUMBA rising or falling?
The level at CORUMBA has been broadly stable over the latest week on record (-1.3 points).
How much water can CORUMBA hold?
CORUMBA has a total capacity of 1,500 hm³, of which about 1,025 hm³ is usable storage.
Where is CORUMBA reservoir located?
CORUMBA is located in Goiás, Brazil, within the PARANAIBA basin (coordinates 17.987°S, 48.531°W).
What is CORUMBA used for?
CORUMBA is used primarily for hydroelectric power, and is managed by ONS.