SOBRADINHO
Bahia · SAO FRANCISCO
Capacity
34,116 hm³
Coordinates
-9.430°N, 40.830°W
Operator
ONS
69.8% full
Current fill
69.8%vs 7 days ago
-1.2%losing
vs 1 year ago
N/A7-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 September 9, 2026, SOBRADINHO is filled to 69.8% of its total capacity, holding roughly 20,005 hm³ of water out of a maximum 34,116 hm³. At this level the reservoir is within its normal operating range. 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 (-1.2 pts).
Across the readings we hold for SOBRADINHO — 52 data points between September 26, 2025 and September 9, 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
- 69.8%
- Water stored
- 20,005 hm³
- Total capacity
- 34,116 hm³
- Usable capacity
- 28,669 hm³
- 7-day change
- ▼ 1.2 pts
- Primary use
- Hydroelectric power
- River
- SÃO FRANCISCO
- River basin
- SAO FRANCISCO
- Operator
- ONS
- Coordinates
- 9.430°S, 40.830°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 69.8% | 20,005 |
| 4 Sep 2026 | 70.9% | 20,335 |
| 28 Aug 2026 | 72.6% | 20,805 |
| 21 Aug 2026 | 74.5% | 21,347 |
| 14 Aug 2026 | 76.9% | 22,035 |
| 7 Aug 2026 | 78.6% | 22,525 |
| 31 Jul 2026 | 80.3% | 23,018 |
| 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 |