CORUMBA
Goiás · PARANAIBA
Useful capacity
969.05 hm³
Coordinates
17.987°S, 48.531°W
Operator
ONS
24.3% of useful capacity
Current fill
24.3%of useful capacity
vs 7 days ago
-2.4 pplosing
vs 1 year ago
-0.2 ppyear-over-year
7-day trend
↓falling
Drought context
Storage vs October average
93%of normal
24.3% full on 2026-10-28, against an average of 26.0% for October across 2 years of readings (-1.7 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around CORUMBA had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +0.64). Rain, not storage. Brazil drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 1,380 hm³ |
| Usable capacity | 969.05 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°S, 48.531°W · Open in Google Maps
About CORUMBA
As of October 28, 2026, CORUMBA is at 24.3% of useful capacity, holding 235.5 hm³ of 969.05 hm³. Of the 1,380 hm³ total capacity, that is 17.1%. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 2.4 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for CORUMBA — 65 data points between October 28, 2025 and October 28, 2026 — the level has ranged from a low of 16.7% (November 21, 2025) to a high of 96.8% (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
- 24.3% of useful capacity
- Water stored
- 235.5 hm³
- Total capacity
- 1,380 hm³
- Usable capacity
- 969.05 hm³
- 7-day change
- ▼ 2.4 pp
- Year-on-year
- ▼ 0.2 pp
- Primary use
- Hydroelectric power
- River
- CORUMBÁ
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 17.987°S, 48.531°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 24.3% | 235.5 |
| 27 Oct 2026 | 24.2% | 234.1 |
| 26 Oct 2026 | 24.3% | 235.8 |
| 25 Oct 2026 | 25.7% | 249.3 |
| 24 Oct 2026 | 26.3% | 255.2 |
| 23 Oct 2026 | 26.4% | 256.2 |
| 22 Oct 2026 | 26.6% | 257.6 |
| 21 Oct 2026 | 26.7% | 258.5 |
| 20 Oct 2026 | 27.2% | 263.6 |
| 19 Oct 2026 | 27.3% | 264.9 |
| 18 Oct 2026 | 27.5% | 266.6 |
| 17 Oct 2026 | 27.8% | 269.2 |