SALTO OSORIO
Paraná · IGUACU
Capacity
1,124 hm³
Coordinates
-25.537°N, 53.008°W
Operator
ONS
91.6% full
Current fill
91.6%vs 7 days ago
+2.2%gaining
vs 1 year ago
N/A7-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 September 9, 2026, SALTO OSORIO is filled to 91.6% of its total capacity, holding roughly 369 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 2.2 percentage points.
Across the readings we hold for SALTO OSORIO — 52 data points between September 26, 2025 and September 9, 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
- 91.6%
- Water stored
- 369 hm³
- Total capacity
- 1,124 hm³
- Usable capacity
- 403 hm³
- 7-day change
- ▲ 2.2 pts
- Primary use
- Hydroelectric power
- River
- IGUAÇU
- River basin
- IGUACU
- Operator
- ONS
- Coordinates
- 25.537°S, 53.008°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 91.6% | 369 |
| 4 Sep 2026 | 89.4% | 360 |
| 28 Aug 2026 | 94.8% | 382 |
| 21 Aug 2026 | 93.5% | 377 |
| 14 Aug 2026 | 93.8% | 378 |
| 7 Aug 2026 | 91.3% | 368 |
| 31 Jul 2026 | 93.8% | 378 |
| 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 |