APOLONIO SALES
Alagoas · SAO FRANCISCO
Capacity
1,226 hm³
Coordinates
-9.356°N, 38.210°W
Operator
ONS
77.0% full
Current fill
77.0%vs 7 days ago
+11.5%gaining
vs 1 year ago
-2.9%year-over-year
7-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 July 28, 2026, APOLONIO SALES is filled to 77.0% of its total capacity, holding roughly 161 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 11.5 percentage points, and it is 2.9 points below its level on the same date a year earlier.
Across the readings we hold for APOLONIO SALES — 52 data points between August 15, 2025 and July 28, 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 July.
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
- 77.0%
- Water stored
- 161 hm³
- Total capacity
- 1,226 hm³
- Usable capacity
- 209 hm³
- 7-day change
- ▲ 11.5 pts
- Year-on-year
- ▼ 2.9 pts
- Primary use
- Hydroelectric power
- River
- SÃO FRANCISCO
- River basin
- SAO FRANCISCO
- Operator
- ONS
- Coordinates
- 9.356°S, 38.210°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 77.0% | 161 |
| 24 Jul 2026 | 65.5% | 137 |
| 17 Jul 2026 | 75.6% | 158 |
| 10 Jul 2026 | 67.9% | 142 |
| 3 Jul 2026 | 73.7% | 154 |
| 26 Jun 2026 | 76.6% | 160 |
| 19 Jun 2026 | 70.8% | 148 |
| 12 Jun 2026 | 69.4% | 145 |
| 5 Jun 2026 | 76.6% | 160 |
| 29 May 2026 | 73.2% | 153 |
| 22 May 2026 | 74.6% | 156 |
| 15 May 2026 | 75.1% | 157 |
Frequently asked questions
What is the current water level of APOLONIO SALES?
As of July 28, 2026, APOLONIO SALES is at 77.0% of its capacity, holding approximately 161 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is APOLONIO SALES reservoir full?
No. As of July 28, 2026, APOLONIO SALES is within its normal operating range at 77.0% of its capacity, so it is not full.
Is the water level at APOLONIO SALES rising or falling?
The level at APOLONIO SALES is rising — it gained 11.5 percentage points over the latest week on record.
How much water can APOLONIO SALES hold?
APOLONIO SALES has a total capacity of 1,226 hm³, of which about 209 hm³ is usable storage.
Where is APOLONIO SALES reservoir located?
APOLONIO SALES is located in Alagoas, Brazil, within the SAO FRANCISCO basin (coordinates 9.356°S, 38.210°W).
What is APOLONIO SALES used for?
APOLONIO SALES is used primarily for hydroelectric power, and is managed by ONS.