RETIRO BAIXO
Minas Gerais · SAO FRANCISCO
Useful capacity
41.61 hm³
Coordinates
18.894°S, 44.782°W
Operator
ONS
52.4% of useful capacity
Current fill
52.4%of useful capacity
vs 7 days ago
-30.7 pplosing
vs 1 year ago
+33.9 ppyear-over-year
7-day trend
↓falling
Drought context
Storage vs October average
108%of normal
52.4% full on 2026-10-26, against an average of 48.5% for October across 2 years of readings (+3.9 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around RETIRO BAIXO 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 +0.44). Rain, not storage. Brazil drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 241.59 hm³ |
| Usable capacity | 41.61 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARAOPEBA |
| Province | Minas Gerais |
| River basin | SAO FRANCISCO |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 18.894°S, 44.782°W · Open in Google Maps
About RETIRO BAIXO
As of October 26, 2026, RETIRO BAIXO is at 52.4% of useful capacity, holding 21.8 hm³ of 41.61 hm³. Of the 241.59 hm³ total capacity, that is 9.0%. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 30.7 percentage points, and it is 33.9 points above its level on the same date a year earlier.
Across the readings we hold for RETIRO BAIXO — 65 data points between October 26, 2025 and October 26, 2026 — the level has ranged from a low of 16.6% (August 21, 2026) to a high of 96.3% (June 19, 2026). On average the reservoir is fullest around June and at its lowest around August.
It is operated by ONS primarily for hydroelectric power. It lies within the SAO FRANCISCO basin at 18.894°S, 44.782°W.
Key facts
- Current fill level
- 52.4% of useful capacity
- Water stored
- 21.8 hm³
- Total capacity
- 241.59 hm³
- Usable capacity
- 41.61 hm³
- 7-day change
- ▼ 30.7 pp
- Year-on-year
- ▲ 33.9 pp
- Primary use
- Hydroelectric power
- River
- PARAOPEBA
- River basin
- SAO FRANCISCO
- Operator
- ONS
- Coordinates
- 18.894°S, 44.782°W
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Oct 2026 | 52.4% | 21.8 |
| 25 Oct 2026 | 65.1% | 27.1 |
| 24 Oct 2026 | 70.2% | 29.2 |
| 23 Oct 2026 | 77.4% | 32.2 |
| 22 Oct 2026 | 81.6% | 33.9 |
| 21 Oct 2026 | 90.5% | 37.6 |
| 20 Oct 2026 | 84.7% | 35.2 |
| 19 Oct 2026 | 83.1% | 34.6 |
| 18 Oct 2026 | 82.6% | 34.4 |
| 17 Oct 2026 | 79.5% | 33.1 |
| 16 Oct 2026 | 81.6% | 33.9 |
| 15 Oct 2026 | 81.6% | 33.9 |