B.COQUEIROS
Goiás · PARANAIBA
Useful capacity
47.43 hm³
Coordinates
18.721°S, 51.004°W
Operator
ONS
96.3% of useful capacity
Current fill
96.3%of useful capacity
vs 7 days ago
+4.2 ppgaining
vs 1 year ago
-1.6 ppyear-over-year
7-day trend
↑rising
Drought context
Storage vs October average
100%of normal
96.3% full on 2026-10-28, against an average of 96.4% for October across 2 years of readings (-0.1 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around B.COQUEIROS had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +0.10). Rain, not storage. Brazil drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 345.62 hm³ |
| Usable capacity | 47.43 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | CLARO |
| Province | Goiás |
| River basin | PARANAIBA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 18.721°S, 51.004°W · Open in Google Maps
About B.COQUEIROS
As of October 28, 2026, B.COQUEIROS is at 96.3% of useful capacity, holding 45.7 hm³ of 47.43 hm³. Of the 345.62 hm³ total capacity, that is 13.2%. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 4.2 percentage points, and it is 1.6 points below its level on the same date a year earlier.
Across the readings we hold for B.COQUEIROS — 65 data points between October 28, 2025 and October 28, 2026 — the level has ranged from a low of 78.7% (August 21, 2026) to a high of 100.0% (July 24, 2026). On average the reservoir is fullest around July and at its lowest around August.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANAIBA basin at 18.721°S, 51.004°W.
Key facts
- Current fill level
- 96.3% of useful capacity
- Water stored
- 45.7 hm³
- Total capacity
- 345.62 hm³
- Usable capacity
- 47.43 hm³
- 7-day change
- ▲ 4.2 pp
- Year-on-year
- ▼ 1.6 pp
- Primary use
- Hydroelectric power
- River
- CLARO
- River basin
- PARANAIBA
- Operator
- ONS
- Coordinates
- 18.721°S, 51.004°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 96.3% | 45.7 |
| 27 Oct 2026 | 95.3% | 45.2 |
| 26 Oct 2026 | 96.3% | 45.7 |
| 25 Oct 2026 | 99.0% | 46.9 |
| 24 Oct 2026 | 97.9% | 46.4 |
| 23 Oct 2026 | 96.3% | 45.7 |
| 22 Oct 2026 | 94.8% | 45 |
| 21 Oct 2026 | 92.2% | 43.7 |
| 20 Oct 2026 | 90.6% | 43 |
| 19 Oct 2026 | 89.6% | 42.5 |
| 18 Oct 2026 | 89.6% | 42.5 |
| 17 Oct 2026 | 94.3% | 44.7 |