ITÁ
Rio Grande do Sul · URUGUAI
Capacity
5,100 hm³
Coordinates
-27.282°N, 52.386°W
Operator
ONS
65.0% full
Current fill
65.0%vs 7 days ago
+12.8%gaining
vs 1 year ago
N/A7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 5,100 hm³ |
| Usable capacity | 797.85 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | URUGUAI |
| Province | Rio Grande do Sul |
| River basin | URUGUAI |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -27.282, -52.386 · Open in Google Maps
About ITÁ
As of September 12, 2026, ITÁ is filled to 65.0% of its total capacity, holding roughly 519 hm³ of water out of a maximum 5,100 hm³. At this level the reservoir is within its normal operating range. Of that total, about 798 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 12.8 percentage points.
Across the readings we hold for ITÁ — 52 data points between October 3, 2025 and September 12, 2026 — the level has ranged from a low of 50.2% (August 28, 2026) to a high of 97.2% (October 3, 2025). On average the reservoir is fullest around October and at its lowest around February.
It is operated by ONS primarily for hydroelectric power. It lies within the URUGUAI basin at 27.282°S, 52.386°W.
Key facts
- Current fill level
- 65.0%
- Water stored
- 519 hm³
- Total capacity
- 5,100 hm³
- Usable capacity
- 798 hm³
- 7-day change
- ▲ 12.8 pts
- Primary use
- Hydroelectric power
- River
- URUGUAI
- River basin
- URUGUAI
- Operator
- ONS
- Coordinates
- 27.282°S, 52.386°W
- Last updated
- September 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Sep 2026 | 65.0% | 519 |
| 11 Sep 2026 | 73.2% | 584 |
| 4 Sep 2026 | 52.2% | 417 |
| 28 Aug 2026 | 50.2% | 401 |
| 21 Aug 2026 | 70.3% | 561 |
| 14 Aug 2026 | 72.1% | 576 |
| 7 Aug 2026 | 74.9% | 598 |
| 31 Jul 2026 | 67.7% | 540 |
| 24 Jul 2026 | 80.8% | 645 |
| 17 Jul 2026 | 83.9% | 670 |
| 10 Jul 2026 | 78.7% | 628 |
| 3 Jul 2026 | 80.1% | 639 |