APOLONIO SALES
Alagoas · SAO FRANCISCO
Capacity
1,226 hm³
Coordinates
-9.356°N, 38.210°W
Operator
ONS
73.7% full
Current fill
73.7%vs 7 days ago
+4.3%gaining
vs 1 year ago
N/A7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 1,226 hm³ |
| Usable capacity | 209 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | SÃO FRANCISCO |
| Province | Alagoas |
| River basin | SAO FRANCISCO |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -9.356, -38.210 · Open in Google Maps
About APOLONIO SALES
As of September 12, 2026, APOLONIO SALES is filled to 73.7% of its total capacity, holding roughly 154 hm³ of water out of a maximum 1,226 hm³. At this level the reservoir is within its normal operating range. Of that total, about 209 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 4.3 percentage points.
Across the readings we hold for APOLONIO SALES — 52 data points between October 3, 2025 and September 12, 2026 — the level has ranged from a low of 65.6% (July 24, 2026) to a high of 84.2% (February 6, 2026). On average the reservoir is fullest around February and at its lowest around August.
It is operated by ONS primarily for hydroelectric power. It lies within the SAO FRANCISCO basin at 9.356°S, 38.210°W.
Key facts
- Current fill level
- 73.7%
- Water stored
- 154 hm³
- Total capacity
- 1,226 hm³
- Usable capacity
- 209 hm³
- 7-day change
- ▲ 4.3 pts
- Primary use
- Hydroelectric power
- River
- SÃO FRANCISCO
- River basin
- SAO FRANCISCO
- Operator
- ONS
- Coordinates
- 9.356°S, 38.210°W
- Last updated
- September 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Sep 2026 | 73.7% | 154 |
| 11 Sep 2026 | 73.2% | 153 |
| 4 Sep 2026 | 69.4% | 145 |
| 28 Aug 2026 | 67.5% | 141 |
| 21 Aug 2026 | 67.0% | 140 |
| 14 Aug 2026 | 67.0% | 140 |
| 7 Aug 2026 | 75.6% | 158 |
| 31 Jul 2026 | 80.4% | 168 |
| 24 Jul 2026 | 65.5% | 137 |
| 17 Jul 2026 | 75.6% | 158 |
| 10 Jul 2026 | 67.9% | 142 |
| 3 Jul 2026 | 73.7% | 154 |