FOZ CHAPECO
Rio Grande do Sul · URUGUAI
Capacity
1,513 hm³
Coordinates
-27.140°N, 53.047°W
Operator
ONS
41.7% full
Current fill
41.7%vs 7 days ago
+12.9%gaining
vs 1 year ago
N/A7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 1,513 hm³ |
| Usable capacity | 78.81 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. -27.140, -53.047 · Open in Google Maps
About FOZ CHAPECO
As of September 12, 2026, FOZ CHAPECO is filled to 41.7% of its total capacity, holding roughly 33 hm³ of water out of a maximum 1,513 hm³. At this level the reservoir is within its normal operating range. Of that total, about 79 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 12.9 percentage points.
Across the readings we hold for FOZ CHAPECO — 52 data points between October 3, 2025 and September 12, 2026 — the level has ranged from a low of 20.8% (July 24, 2026) to a high of 72.7% (August 7, 2026). On average the reservoir is fullest around August and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the URUGUAI basin at 27.140°S, 53.047°W.
Key facts
- Current fill level
- 41.7%
- Water stored
- 33 hm³
- Total capacity
- 1,513 hm³
- Usable capacity
- 79 hm³
- 7-day change
- ▲ 12.9 pts
- Primary use
- Hydroelectric power
- River
- URUGUAI
- River basin
- URUGUAI
- Operator
- ONS
- Coordinates
- 27.140°S, 53.047°W
- Last updated
- September 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Sep 2026 | 41.6% | 33 |
| 11 Sep 2026 | 47.6% | 38 |
| 4 Sep 2026 | 28.7% | 23 |
| 28 Aug 2026 | 42.6% | 34 |
| 21 Aug 2026 | 64.7% | 51 |
| 14 Aug 2026 | 39.7% | 31 |
| 7 Aug 2026 | 72.7% | 57 |
| 31 Jul 2026 | 57.6% | 45 |
| 24 Jul 2026 | 20.8% | 16 |
| 17 Jul 2026 | 29.7% | 23 |
| 10 Jul 2026 | 33.7% | 27 |
| 3 Jul 2026 | 41.6% | 33 |