MACHADINHO
Santa Catarina · URUGUAI
Capacity
3,340 hm³
Coordinates
-27.524°N, 51.789°W
Operator
ONS
87.0% full
Current fill
87.0%vs 7 days ago
-4.0%losing
vs 1 year ago
+4.7%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 3,340 hm³ |
| Usable capacity | 1,055.81 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | URUGUAI |
| Province | Santa Catarina |
| River basin | URUGUAI |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -27.524, -51.789 · Open in Google Maps
About MACHADINHO
As of July 28, 2026, MACHADINHO is filled to 87.0% of its total capacity, holding roughly 919 hm³ of water out of a maximum 3,340 hm³. At this level the reservoir is high. Of that total, about 1,056 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 4.0 percentage points, and it is 4.7 points above its level on the same date a year earlier.
Across the readings we hold for MACHADINHO — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 6.9% (May 22, 2026) to a high of 99.5% (September 26, 2025). On average the reservoir is fullest around September and at its lowest around May.
It is operated by ONS primarily for hydroelectric power. It lies within the URUGUAI basin at 27.524°S, 51.789°W.
Key facts
- Current fill level
- 87.0%
- Water stored
- 919 hm³
- Total capacity
- 3,340 hm³
- Usable capacity
- 1,056 hm³
- 7-day change
- ▼ 4.0 pts
- Year-on-year
- ▲ 4.7 pts
- Primary use
- Hydroelectric power
- River
- URUGUAI
- River basin
- URUGUAI
- Operator
- ONS
- Coordinates
- 27.524°S, 51.789°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 87.0% | 919 |
| 24 Jul 2026 | 91.1% | 962 |
| 17 Jul 2026 | 91.9% | 970 |
| 10 Jul 2026 | 83.3% | 880 |
| 3 Jul 2026 | 47.0% | 496 |
| 26 Jun 2026 | 21.5% | 227 |
| 19 Jun 2026 | 18.4% | 194 |
| 12 Jun 2026 | 18.1% | 191 |
| 5 Jun 2026 | 12.6% | 133 |
| 29 May 2026 | 9.3% | 98 |
| 22 May 2026 | 6.9% | 73 |
| 15 May 2026 | 7.0% | 74 |
Frequently asked questions
What is the current water level of MACHADINHO?
As of July 28, 2026, MACHADINHO is at 87.0% of its capacity, holding approximately 919 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is MACHADINHO reservoir full?
No. As of July 28, 2026, MACHADINHO is high at 87.0% of its capacity, so it is not full.
Is the water level at MACHADINHO rising or falling?
The level at MACHADINHO is falling — it dropped 4.0 percentage points over the latest week on record.
How much water can MACHADINHO hold?
MACHADINHO has a total capacity of 3,340 hm³, of which about 1,056 hm³ is usable storage.
Where is MACHADINHO reservoir located?
MACHADINHO is located in Santa Catarina, Brazil, within the URUGUAI basin (coordinates 27.524°S, 51.789°W).
What is MACHADINHO used for?
MACHADINHO is used primarily for hydroelectric power, and is managed by ONS.