G. B. MUNHOZ
Paraná · IGUACU
Capacity
5,779 hm³
Coordinates
-26.009°N, 51.665°W
Operator
ONS
Current fill
70.2%vs 7 days ago
-6.3%losing
vs 1 year ago
+0.1%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 5,779 hm³ |
| Usable capacity | 3,804.69 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | IGUAÇU |
| Province | Paraná |
| River basin | IGUACU |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -26.009, -51.665 · Open in Google Maps
About G. B. MUNHOZ
As of June 10, 2026, G. B. MUNHOZ is filled to 70.2% of its total capacity, holding roughly 2,670 hm³ of water out of a maximum 5,779 hm³. At this level the reservoir is within its normal operating range. Of that total, about 3,805 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 6.3 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for G. B. MUNHOZ — 52 data points between June 27, 2025 and June 10, 2026 — the level has ranged from a low of 18.7% (April 24, 2026) to a high of 99.6% (October 3, 2025). On average the reservoir is fullest around September and at its lowest around April.
It is operated by ONS primarily for hydroelectric power. It lies within the IGUACU basin at 26.009°S, 51.665°W.
Key facts
- Current fill level
- 70.2%
- Water stored
- 2,670 hm³
- Total capacity
- 5,779 hm³
- Usable capacity
- 3,805 hm³
- 7-day change
- ▼ 6.3 pts
- Year-on-year
- ▲ 0.1 pts
- Primary use
- Hydroelectric power
- River
- IGUAÇU
- River basin
- IGUACU
- Operator
- ONS
- Coordinates
- 26.009°S, 51.665°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 70.2% | 2,670 |
| 5 Jun 2026 | 76.5% | 2,910 |
| 29 May 2026 | 74.8% | 2,846 |
| 22 May 2026 | 63.9% | 2,430 |
| 15 May 2026 | 52.1% | 1,982 |
| 8 May 2026 | 38.1% | 1,451 |
| 1 May 2026 | 24.3% | 923 |
| 24 Apr 2026 | 18.7% | 710 |
| 17 Apr 2026 | 19.0% | 723 |
| 10 Apr 2026 | 19.8% | 753 |
| 3 Apr 2026 | 19.7% | 750 |
| 27 Mar 2026 | 20.3% | 770 |
Frequently asked questions
What is the current water level of G. B. MUNHOZ?
As of June 10, 2026, G. B. MUNHOZ is at 70.2% of its capacity, holding approximately 2,670 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is G. B. MUNHOZ reservoir full?
No. As of June 10, 2026, G. B. MUNHOZ is within its normal operating range at 70.2% of its capacity, so it is not full.
Is the water level at G. B. MUNHOZ rising or falling?
The level at G. B. MUNHOZ is falling — it dropped 6.3 percentage points over the latest week on record.
How much water can G. B. MUNHOZ hold?
G. B. MUNHOZ has a total capacity of 5,779 hm³, of which about 3,805 hm³ is usable storage.
Where is G. B. MUNHOZ reservoir located?
G. B. MUNHOZ is located in Paraná, Brazil, within the IGUACU basin (coordinates 26.009°S, 51.665°W).
What is G. B. MUNHOZ used for?
G. B. MUNHOZ is used primarily for hydroelectric power, and is managed by ONS.