BAIXO IGUACU
Paraná · IGUACU
Capacity
211.92 hm³
Coordinates
-25.503°N, 53.678°W
Operator
ONS
37.0% full
Current fill
37.0%vs 7 days ago
-2.0%losing
vs 1 year ago
N/A7-day trend
↓falling
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 September 9, 2026, BAIXO IGUACU is filled to 37.0% of its total capacity, holding roughly 12 hm³ of water out of a maximum 212 hm³. At this level the reservoir is low. Of that total, about 33 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 2.0 percentage points.
Across the readings we hold for BAIXO IGUACU — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 13.5% (November 14, 2025) to a high of 90.7% (August 21, 2026). 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
- 37.0%
- Water stored
- 12 hm³
- Total capacity
- 212 hm³
- Usable capacity
- 33 hm³
- 7-day change
- ▼ 2.0 pts
- Primary use
- Hydroelectric power
- River
- IGUAÇU
- River basin
- IGUACU
- Operator
- ONS
- Coordinates
- 25.503°S, 53.678°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 37.0% | 12 |
| 4 Sep 2026 | 39.0% | 13 |
| 28 Aug 2026 | 38.0% | 13 |
| 21 Aug 2026 | 90.7% | 30 |
| 14 Aug 2026 | 42.0% | 14 |
| 7 Aug 2026 | 45.9% | 15 |
| 31 Jul 2026 | 57.0% | 19 |
| 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 |