SOBRADINHO
Bahia · SAO FRANCISCO
Capacity
34,116 hm³
Coordinates
-9.430°N, 40.830°W
Operator
ONS
80.5% full
Current fill
80.5%vs 7 days ago
-1.0%losing
vs 1 year ago
+26.0%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 34,116 hm³ |
| Usable capacity | 28,669 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | SÃO FRANCISCO |
| Province | Bahia |
| River basin | SAO FRANCISCO |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -9.430, -40.830 · Open in Google Maps
About SOBRADINHO
As of July 28, 2026, SOBRADINHO is filled to 80.5% of its total capacity, holding roughly 23,090 hm³ of water out of a maximum 34,116 hm³. At this level the reservoir is high. Of that total, about 28,669 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-1.0 pts), and it is 26.0 points above its level on the same date a year earlier.
Across the readings we hold for SOBRADINHO — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 41.2% (November 28, 2025) to a high of 99.9% (May 1, 2026). On average the reservoir is fullest around May and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the SAO FRANCISCO basin at 9.430°S, 40.830°W.
Key facts
- Current fill level
- 80.5%
- Water stored
- 23,090 hm³
- Total capacity
- 34,116 hm³
- Usable capacity
- 28,669 hm³
- 7-day change
- ▼ 1.0 pts
- Year-on-year
- ▲ 26.0 pts
- Primary use
- Hydroelectric power
- River
- SÃO FRANCISCO
- River basin
- SAO FRANCISCO
- Operator
- ONS
- Coordinates
- 9.430°S, 40.830°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 80.5% | 23,090 |
| 24 Jul 2026 | 81.5% | 23,374 |
| 17 Jul 2026 | 83.3% | 23,881 |
| 10 Jul 2026 | 84.6% | 24,248 |
| 3 Jul 2026 | 85.5% | 24,506 |
| 26 Jun 2026 | 86.5% | 24,807 |
| 19 Jun 2026 | 87.8% | 25,186 |
| 12 Jun 2026 | 89.7% | 25,722 |
| 5 Jun 2026 | 91.5% | 26,232 |
| 29 May 2026 | 93.8% | 26,906 |
| 22 May 2026 | 95.5% | 27,390 |
| 15 May 2026 | 97.2% | 27,878 |
Frequently asked questions
What is the current water level of SOBRADINHO?
As of July 28, 2026, SOBRADINHO is at 80.5% of its capacity, holding approximately 23,090 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is SOBRADINHO reservoir full?
No. As of July 28, 2026, SOBRADINHO is high at 80.5% of its capacity, so it is not full.
Is the water level at SOBRADINHO rising or falling?
The level at SOBRADINHO has been broadly stable over the latest week on record (-1.0 points).
How much water can SOBRADINHO hold?
SOBRADINHO has a total capacity of 34,116 hm³, of which about 28,669 hm³ is usable storage.
Where is SOBRADINHO reservoir located?
SOBRADINHO is located in Bahia, Brazil, within the SAO FRANCISCO basin (coordinates 9.430°S, 40.830°W).
What is SOBRADINHO used for?
SOBRADINHO is used primarily for hydroelectric power, and is managed by ONS.