TAQUARUÇU
São Paulo · PARANAPANEMA
Capacity
677 hm³
Coordinates
-22.545°N, 51.996°W
Operator
ONS
75.1% full
Current fill
75.1%vs 7 days ago
+16.0%gaining
vs 1 year ago
N/A7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 677 hm³ |
| Usable capacity | 138.13 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARANAPANEMA |
| Province | São Paulo |
| River basin | PARANAPANEMA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -22.545, -51.996 · Open in Google Maps
About TAQUARUÇU
As of September 9, 2026, TAQUARUÇU is filled to 75.1% of its total capacity, holding roughly 104 hm³ of water out of a maximum 677 hm³. At this level the reservoir is within its normal operating range. Of that total, about 138 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 16.0 percentage points.
Across the readings we hold for TAQUARUÇU — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 49.5% (February 27, 2026) to a high of 93.0% (December 5, 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 PARANAPANEMA basin at 22.545°S, 51.996°W.
Key facts
- Current fill level
- 75.1%
- Water stored
- 104 hm³
- Total capacity
- 677 hm³
- Usable capacity
- 138 hm³
- 7-day change
- ▲ 16.0 pts
- Primary use
- Hydroelectric power
- River
- PARANAPANEMA
- River basin
- PARANAPANEMA
- Operator
- ONS
- Coordinates
- 22.545°S, 51.996°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 75.1% | 104 |
| 4 Sep 2026 | 59.1% | 82 |
| 28 Aug 2026 | 66.3% | 92 |
| 21 Aug 2026 | 64.7% | 89 |
| 14 Aug 2026 | 63.2% | 87 |
| 7 Aug 2026 | 55.0% | 76 |
| 31 Jul 2026 | 55.5% | 77 |
| 24 Jul 2026 | 59.1% | 82 |
| 17 Jul 2026 | 57.6% | 80 |
| 10 Jul 2026 | 62.2% | 86 |
| 3 Jul 2026 | 54.0% | 75 |
| 26 Jun 2026 | 63.7% | 88 |