LAJEADO
Tocantins · TOCANTINS
Capacity
4,940 hm³
Coordinates
-9.756°N, 48.374°W
Operator
ONS
28.1% full
Current fill
28.1%vs 7 days ago
-3.7%losing
vs 1 year ago
-29.9%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 4,940 hm³ |
| Usable capacity | 482.37 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | TOCANTINS |
| Province | Tocantins |
| River basin | TOCANTINS |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -9.756, -48.374 · Open in Google Maps
About LAJEADO
As of July 28, 2026, LAJEADO is filled to 28.1% of its total capacity, holding roughly 136 hm³ of water out of a maximum 4,940 hm³. At this level the reservoir is low. Of that total, about 482 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 3.7 percentage points, and it is 29.9 points below its level on the same date a year earlier.
Across the readings we hold for LAJEADO — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 9.7% (October 3, 2025) to a high of 102.6% (March 13, 2026). On average the reservoir is fullest around March and at its lowest around September.
It is operated by ONS primarily for hydroelectric power. It lies within the TOCANTINS basin at 9.756°S, 48.374°W.
Key facts
- Current fill level
- 28.1%
- Water stored
- 136 hm³
- Total capacity
- 4,940 hm³
- Usable capacity
- 482 hm³
- 7-day change
- ▼ 3.7 pts
- Year-on-year
- ▼ 29.9 pts
- Primary use
- Hydroelectric power
- River
- TOCANTINS
- River basin
- TOCANTINS
- Operator
- ONS
- Coordinates
- 9.756°S, 48.374°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 28.1% | 136 |
| 24 Jul 2026 | 31.8% | 154 |
| 17 Jul 2026 | 39.3% | 189 |
| 10 Jul 2026 | 45.5% | 219 |
| 3 Jul 2026 | 49.2% | 238 |
| 26 Jun 2026 | 54.2% | 262 |
| 19 Jun 2026 | 60.5% | 292 |
| 12 Jun 2026 | 64.3% | 310 |
| 5 Jun 2026 | 56.8% | 274 |
| 29 May 2026 | 38.0% | 183 |
| 22 May 2026 | 35.5% | 172 |
| 15 May 2026 | 41.8% | 201 |
Frequently asked questions
What is the current water level of LAJEADO?
As of July 28, 2026, LAJEADO is at 28.1% of its capacity, holding approximately 136 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is LAJEADO reservoir full?
No. As of July 28, 2026, LAJEADO is low at 28.1% of its capacity, so it is not full.
Is the water level at LAJEADO rising or falling?
The level at LAJEADO is falling — it dropped 3.7 percentage points over the latest week on record.
How much water can LAJEADO hold?
LAJEADO has a total capacity of 4,940 hm³, of which about 482 hm³ is usable storage.
Where is LAJEADO reservoir located?
LAJEADO is located in Tocantins, Brazil, within the TOCANTINS basin (coordinates 9.756°S, 48.374°W).
What is LAJEADO used for?
LAJEADO is used primarily for hydroelectric power, and is managed by ONS.