SALTO CAXIAS
Paraná · IGUACU
Capacity
3,573 hm³
Coordinates
-25.541°N, 53.494°W
Operator
ONS
36.1% full
Current fill
36.1%vs 7 days ago
-35.7%losing
vs 1 year ago
N/A7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 3,573 hm³ |
| Usable capacity | 272.76 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. -25.541, -53.494 · Open in Google Maps
About SALTO CAXIAS
As of September 9, 2026, SALTO CAXIAS is filled to 36.1% of its total capacity, holding roughly 99 hm³ of water out of a maximum 3,573 hm³. At this level the reservoir is low. Of that total, about 273 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 35.7 percentage points.
Across the readings we hold for SALTO CAXIAS — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 28.1% (February 13, 2026) to a high of 90.9% (September 26, 2025). On average the reservoir is fullest around November and at its lowest around February.
It is operated by ONS primarily for hydroelectric power. It lies within the IGUACU basin at 25.541°S, 53.494°W.
Key facts
- Current fill level
- 36.1%
- Water stored
- 99 hm³
- Total capacity
- 3,573 hm³
- Usable capacity
- 273 hm³
- 7-day change
- ▼ 35.7 pts
- Primary use
- Hydroelectric power
- River
- IGUAÇU
- River basin
- IGUACU
- Operator
- ONS
- Coordinates
- 25.541°S, 53.494°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 36.1% | 99 |
| 4 Sep 2026 | 71.8% | 196 |
| 28 Aug 2026 | 35.1% | 96 |
| 21 Aug 2026 | 59.7% | 163 |
| 14 Aug 2026 | 53.2% | 145 |
| 7 Aug 2026 | 52.7% | 144 |
| 31 Jul 2026 | 70.3% | 192 |
| 24 Jul 2026 | 73.8% | 201 |
| 17 Jul 2026 | 62.7% | 171 |
| 10 Jul 2026 | 77.3% | 211 |
| 3 Jul 2026 | 90.4% | 247 |
| 26 Jun 2026 | 31.1% | 85 |