BAIXO IGUACU
Paraná · IGUACU
Capacity
211.92 hm³
Coordinates
-25.503°N, 53.678°W
Operator
ONS
46.9% full
Current fill
46.9%vs 7 days ago
+22.7%gaining
vs 1 year ago
+23.7%year-over-year
7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 211.92 hm³ |
| Usable capacity | 33.22 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. -25.503, -53.678 · Open in Google Maps
About BAIXO IGUACU
As of July 28, 2026, BAIXO IGUACU is filled to 46.9% of its total capacity, holding roughly 16 hm³ of water out of a maximum 212 hm³. At this level the reservoir is within its normal operating range. Of that total, about 33 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 22.7 percentage points, and it is 23.7 points above its level on the same date a year earlier.
Across the readings we hold for BAIXO IGUACU — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 13.5% (November 14, 2025) to a high of 85.5% (August 22, 2025). On average the reservoir is fullest around May and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the IGUACU basin at 25.503°S, 53.678°W.
Key facts
- Current fill level
- 46.9%
- Water stored
- 16 hm³
- Total capacity
- 212 hm³
- Usable capacity
- 33 hm³
- 7-day change
- ▲ 22.7 pts
- Year-on-year
- ▲ 23.7 pts
- Primary use
- Hydroelectric power
- River
- IGUAÇU
- River basin
- IGUACU
- Operator
- ONS
- Coordinates
- 25.503°S, 53.678°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 46.9% | 16 |
| 24 Jul 2026 | 24.2% | 8 |
| 17 Jul 2026 | 52.9% | 18 |
| 10 Jul 2026 | 44.9% | 15 |
| 3 Jul 2026 | 46.9% | 16 |
| 26 Jun 2026 | 51.9% | 17 |
| 19 Jun 2026 | 42.0% | 14 |
| 12 Jun 2026 | 42.0% | 14 |
| 5 Jun 2026 | 67.1% | 22 |
| 29 May 2026 | 74.2% | 25 |
| 22 May 2026 | 61.0% | 20 |
| 15 May 2026 | 64.0% | 21 |
Frequently asked questions
What is the current water level of BAIXO IGUACU?
As of July 28, 2026, BAIXO IGUACU is at 46.9% of its capacity, holding approximately 16 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is BAIXO IGUACU reservoir full?
No. As of July 28, 2026, BAIXO IGUACU is within its normal operating range at 46.9% of its capacity, so it is not full.
Is the water level at BAIXO IGUACU rising or falling?
The level at BAIXO IGUACU is rising — it gained 22.7 percentage points over the latest week on record.
How much water can BAIXO IGUACU hold?
BAIXO IGUACU has a total capacity of 212 hm³, of which about 33 hm³ is usable storage.
Where is BAIXO IGUACU reservoir located?
BAIXO IGUACU is located in Paraná, Brazil, within the IGUACU basin (coordinates 25.503°S, 53.678°W).
What is BAIXO IGUACU used for?
BAIXO IGUACU is used primarily for hydroelectric power, and is managed by ONS.