N. AVANHANDAVA
São Paulo · TIETE
Capacity
2,720 hm³
Coordinates
-21.117°N, 50.202°W
Operator
ONS
89.5% full
Current fill
89.5%vs 7 days ago
-8.4%losing
vs 1 year ago
N/A7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 2,720 hm³ |
| Usable capacity | 378 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | TIETÊ |
| Province | São Paulo |
| River basin | TIETE |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -21.117, -50.202 · Open in Google Maps
About N. AVANHANDAVA
As of September 9, 2026, N. AVANHANDAVA is filled to 89.5% of its total capacity, holding roughly 338 hm³ of water out of a maximum 2,720 hm³. At this level the reservoir is high. Of that total, about 378 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 8.4 percentage points.
Across the readings we hold for N. AVANHANDAVA — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 55.3% (February 6, 2026) to a high of 97.9% (June 12, 2026). On average the reservoir is fullest around August and at its lowest around February.
It is operated by ONS primarily for hydroelectric power. It lies within the TIETE basin at 21.117°S, 50.202°W.
Key facts
- Current fill level
- 89.5%
- Water stored
- 338 hm³
- Total capacity
- 2,720 hm³
- Usable capacity
- 378 hm³
- 7-day change
- ▼ 8.4 pts
- Primary use
- Hydroelectric power
- River
- TIETÊ
- River basin
- TIETE
- Operator
- ONS
- Coordinates
- 21.117°S, 50.202°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 89.5% | 338 |
| 4 Sep 2026 | 97.9% | 370 |
| 28 Aug 2026 | 96.3% | 364 |
| 21 Aug 2026 | 92.6% | 350 |
| 14 Aug 2026 | 95.3% | 360 |
| 7 Aug 2026 | 93.7% | 354 |
| 31 Jul 2026 | 86.3% | 326 |
| 24 Jul 2026 | 93.2% | 352 |
| 17 Jul 2026 | 93.7% | 354 |
| 10 Jul 2026 | 94.2% | 356 |
| 3 Jul 2026 | 89.5% | 338 |
| 26 Jun 2026 | 92.1% | 348 |