ITUMBIARA
Minas Gerais · PARANAIBA
Capacity
17,027 hm³
Coordinates
-18.409°N, 49.097°W
Operator
ONS
Current fill
83.9%vs 7 days ago
-1.6%losing
vs 1 year ago
-2.8%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 17,027 hm³ |
| Usable capacity | 12,454 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARANAÍBA |
| Province | Minas Gerais |
| River basin | PARANAIBA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -18.409, -49.097 · Open in Google Maps
About ITUMBIARA
As of June 10, 2026, ITUMBIARA is filled to 83.9% of its total capacity, holding roughly 10,443 hm³ of water out of a maximum 17,027 hm³. At this level the reservoir is high. Of that total, about 12,454 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 1.6 percentage points, and it is 2.8 points below its level on the same date a year earlier.
Across the readings we hold for ITUMBIARA — 52 data points between June 27, 2025 and June 10, 2026 — the level has ranged from a low of 32.1% (January 2, 2026) to a high of 86.6% (June 27, 2025). On average the reservoir is fullest around July and at its lowest around December.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANAIBA basin at 18.409°S, 49.097°W.
Key facts
- Current fill level
- 83.9%
- Water stored
- 10,443 hm³
- Total capacity
- 17,027 hm³
- Usable capacity
- 12,454 hm³
- 7-day change
- ▼ 1.6 pts
- Year-on-year
- ▼ 2.8 pts
- Primary use
- Hydroelectric power
- River
- PARANAÍBA
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 18.409°S, 49.097°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 83.8% | 10,443 |
| 5 Jun 2026 | 85.4% | 10,641 |
| 29 May 2026 | 85.4% | 10,635 |
| 22 May 2026 | 85.4% | 10,641 |
| 15 May 2026 | 84.8% | 10,564 |
| 8 May 2026 | 83.6% | 10,407 |
| 1 May 2026 | 82.7% | 10,293 |
| 24 Apr 2026 | 81.4% | 10,141 |
| 17 Apr 2026 | 79.2% | 9,869 |
| 10 Apr 2026 | 77.5% | 9,656 |
| 3 Apr 2026 | 74.2% | 9,237 |
| 27 Mar 2026 | 70.3% | 8,756 |
Frequently asked questions
What is the current water level of ITUMBIARA?
As of June 10, 2026, ITUMBIARA is at 83.9% of its capacity, holding approximately 10,443 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is ITUMBIARA reservoir full?
No. As of June 10, 2026, ITUMBIARA is high at 83.9% of its capacity, so it is not full.
Is the water level at ITUMBIARA rising or falling?
The level at ITUMBIARA is falling — it dropped 1.6 percentage points over the latest week on record.
How much water can ITUMBIARA hold?
ITUMBIARA has a total capacity of 17,027 hm³, of which about 12,454 hm³ is usable storage.
Where is ITUMBIARA reservoir located?
ITUMBIARA is located in Minas Gerais, Brazil, within the PARANAIBA basin (coordinates 18.409°S, 49.097°W).
What is ITUMBIARA used for?
ITUMBIARA is used primarily for hydroelectric power, and is managed by ONS.