SALTO OSORIO
Paraná · IGUACU
Capacity
1,124 hm³
Coordinates
-25.537°N, 53.008°W
Operator
ONS
96.4% full
Current fill
96.4%vs 7 days ago
+4.3%gaining
vs 1 year ago
+5.5%year-over-year
7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 1,124 hm³ |
| Usable capacity | 402.67 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. -25.537, -53.008 · Open in Google Maps
About SALTO OSORIO
As of July 28, 2026, SALTO OSORIO is filled to 96.4% of its total capacity, holding roughly 388 hm³ of water out of a maximum 1,124 hm³. At this level the reservoir is high. Of that total, about 403 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 4.3 percentage points, and it is 5.5 points above its level on the same date a year earlier.
Across the readings we hold for SALTO OSORIO — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 87.6% (November 7, 2025) to a high of 98.6% (June 26, 2026). On average the reservoir is fullest around July and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the IGUACU basin at 25.537°S, 53.008°W.
Key facts
- Current fill level
- 96.4%
- Water stored
- 388 hm³
- Total capacity
- 1,124 hm³
- Usable capacity
- 403 hm³
- 7-day change
- ▲ 4.3 pts
- Year-on-year
- ▲ 5.5 pts
- Primary use
- Hydroelectric power
- River
- IGUAÇU
- River basin
- IGUACU
- Operator
- ONS
- Coordinates
- 25.537°S, 53.008°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 96.4% | 388 |
| 24 Jul 2026 | 92.1% | 371 |
| 17 Jul 2026 | 95.0% | 383 |
| 10 Jul 2026 | 94.9% | 382 |
| 3 Jul 2026 | 96.7% | 389 |
| 26 Jun 2026 | 98.6% | 397 |
| 19 Jun 2026 | 93.8% | 378 |
| 12 Jun 2026 | 91.5% | 368 |
| 5 Jun 2026 | 92.4% | 372 |
| 29 May 2026 | 94.8% | 382 |
| 22 May 2026 | 92.7% | 373 |
| 15 May 2026 | 95.0% | 383 |
Frequently asked questions
What is the current water level of SALTO OSORIO?
As of July 28, 2026, SALTO OSORIO is at 96.4% of its capacity, holding approximately 388 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is SALTO OSORIO reservoir full?
SALTO OSORIO is essentially full, sitting at 96.4% of capacity as of July 28, 2026.
Is the water level at SALTO OSORIO rising or falling?
The level at SALTO OSORIO is rising — it gained 4.3 percentage points over the latest week on record.
How much water can SALTO OSORIO hold?
SALTO OSORIO has a total capacity of 1,124 hm³, of which about 403 hm³ is usable storage.
Where is SALTO OSORIO reservoir located?
SALTO OSORIO is located in Paraná, Brazil, within the IGUACU basin (coordinates 25.537°S, 53.008°W).
What is SALTO OSORIO used for?
SALTO OSORIO is used primarily for hydroelectric power, and is managed by ONS.