N. AVANHANDAVA
São Paulo · TIETE
Capacity
2,720 hm³
Coordinates
-21.117°N, 50.202°W
Operator
ONS
86.8% full
Current fill
86.8%vs 7 days ago
-6.3%losing
vs 1 year ago
-7.4%year-over-year
7-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 July 28, 2026, N. AVANHANDAVA is filled to 86.8% of its total capacity, holding roughly 328 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 6.3 percentage points, and it is 7.4 points below its level on the same date a year earlier.
Across the readings we hold for N. AVANHANDAVA — 52 data points between August 15, 2025 and July 28, 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
- 86.8%
- Water stored
- 328 hm³
- Total capacity
- 2,720 hm³
- Usable capacity
- 378 hm³
- 7-day change
- ▼ 6.3 pts
- Year-on-year
- ▼ 7.4 pts
- Primary use
- Hydroelectric power
- River
- TIETÊ
- River basin
- TIETE
- Operator
- ONS
- Coordinates
- 21.117°S, 50.202°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 86.8% | 328 |
| 24 Jul 2026 | 93.2% | 352 |
| 17 Jul 2026 | 94.7% | 358 |
| 10 Jul 2026 | 94.2% | 356 |
| 3 Jul 2026 | 89.5% | 338 |
| 26 Jun 2026 | 92.1% | 348 |
| 19 Jun 2026 | 89.5% | 338 |
| 12 Jun 2026 | 97.9% | 370 |
| 5 Jun 2026 | 87.9% | 332 |
| 29 May 2026 | 86.3% | 326 |
| 22 May 2026 | 89.0% | 336 |
| 15 May 2026 | 77.9% | 294 |
Frequently asked questions
What is the current water level of N. AVANHANDAVA?
As of July 28, 2026, N. AVANHANDAVA is at 86.8% of its capacity, holding approximately 328 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is N. AVANHANDAVA reservoir full?
No. As of July 28, 2026, N. AVANHANDAVA is high at 86.8% of its capacity, so it is not full.
Is the water level at N. AVANHANDAVA rising or falling?
The level at N. AVANHANDAVA is falling — it dropped 6.3 percentage points over the latest week on record.
How much water can N. AVANHANDAVA hold?
N. AVANHANDAVA has a total capacity of 2,720 hm³, of which about 378 hm³ is usable storage.
Where is N. AVANHANDAVA reservoir located?
N. AVANHANDAVA is located in São Paulo, Brazil, within the TIETE basin (coordinates 21.117°S, 50.202°W).
What is N. AVANHANDAVA used for?
N. AVANHANDAVA is used primarily for hydroelectric power, and is managed by ONS.