PEDRA DO CAVALO
Bahia · PARAGUACU
Capacity
3,134 hm³
Coordinates
-12.582°N, 39.002°W
Operator
ONS
83.5% full
Current fill
83.5%vs 7 days ago
-1.3%losing
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 3,134 hm³ |
| Usable capacity | 942 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARAGUACU |
| Province | Bahia |
| River basin | PARAGUACU |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -12.582, -39.002 · Open in Google Maps
About PEDRA DO CAVALO
As of October 7, 2026, PEDRA DO CAVALO is filled to 83.5% of its total capacity, holding roughly 786 hm³ of water out of a maximum 3,134 hm³. At this level the reservoir is high. Of that total, about 942 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-1.3 pts).
Across the readings we hold for PEDRA DO CAVALO — 52 data points between October 24, 2025 and October 7, 2026 — the level has ranged from a low of 63.5% (November 21, 2025) to a high of 105.0% (March 6, 2026). On average the reservoir is fullest around March and at its lowest around November.
It is operated by ONS primarily for hydroelectric power. It lies within the PARAGUACU basin at 12.582°S, 39.002°W.
Key facts
- Current fill level
- 83.5%
- Water stored
- 786 hm³
- Total capacity
- 3,134 hm³
- Usable capacity
- 942 hm³
- 7-day change
- ▼ 1.3 pts
- Primary use
- Hydroelectric power
- River
- PARAGUACU
- River basin
- PARAGUACU
- Operator
- ONS
- Coordinates
- 12.582°S, 39.002°W
- Last updated
- October 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Oct 2026 | 83.5% | 786 |
| 2 Oct 2026 | 84.8% | 799 |
| 25 Sep 2026 | 86.5% | 815 |
| 18 Sep 2026 | 89.8% | 845 |
| 11 Sep 2026 | 93.2% | 878 |
| 4 Sep 2026 | 96.5% | 909 |
| 28 Aug 2026 | 99.3% | 936 |
| 21 Aug 2026 | 102.7% | 968 |
| 14 Aug 2026 | 105.0% | 989 |
| 7 Aug 2026 | 105.0% | 989 |
| 31 Jul 2026 | 105.0% | 989 |
| 24 Jul 2026 | 105.0% | 989 |