SOBRADINHO
Bahia · SAO FRANCISCO
Useful capacity
28,669 hm³
Coordinates
9.430°S, 40.830°W
Operator
ONS
61.9% of useful capacity
Current fill
61.9%of useful capacity
vs 7 days ago
-0.4 pplosing
vs 1 year ago
+18.3 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
117%of normal
61.9% full on 2026-10-26, against an average of 53.1% for October across 2 years of readings (+8.8 points).
Rain over the last three months · 11 October 2026
Severely dry
In the three months to 11 October 2026 the area around SOBRADINHO had far less rain than normal, a shortfall seen about one year in fifteen. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.58). Rain, not storage. Brazil drought figures →
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°S, 40.830°W · Open in Google Maps
About SOBRADINHO
As of October 26, 2026, SOBRADINHO is at 61.9% of useful capacity, holding 17,732 hm³ of 28,669 hm³. Of the 34,116 hm³ total capacity, that is 52.0%. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.4 pp), and it is 18.3 points above its level on the same date a year earlier.
Across the readings we hold for SOBRADINHO — 65 data points between October 26, 2025 and October 26, 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
- 61.9% of useful capacity
- Water stored
- 17,732 hm³
- Total capacity
- 34,116 hm³
- Usable capacity
- 28,669 hm³
- 7-day change
- ▼ 0.4 pp
- Year-on-year
- ▲ 18.3 pp
- Primary use
- Hydroelectric power
- River
- SÃO FRANCISCO
- River basin
- SAO FRANCISCO
- Operator
- ONS
- Coordinates
- 9.430°S, 40.830°W
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Oct 2026 | 61.9% | 17,732 |
| 25 Oct 2026 | 61.9% | 17,732 |
| 24 Oct 2026 | 61.9% | 17,732 |
| 23 Oct 2026 | 62.0% | 17,763 |
| 22 Oct 2026 | 62.1% | 17,795 |
| 21 Oct 2026 | 62.1% | 17,795 |
| 20 Oct 2026 | 62.2% | 17,826 |
| 19 Oct 2026 | 62.3% | 17,858 |
| 18 Oct 2026 | 62.4% | 17,887 |
| 17 Oct 2026 | 62.5% | 17,918 |
| 16 Oct 2026 | 62.6% | 17,950 |
| 15 Oct 2026 | 62.7% | 17,981 |