PASSO FUNDO
Rio Grande do Sul · URUGUAI
Capacity
1,589 hm³
Coordinates
-27.554°N, 52.741°W
Operator
ONS
Current fill
53.9%vs 7 days ago
-1.7%losing
vs 1 year ago
-9.9%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 1,589 hm³ |
| Usable capacity | 1,404.61 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PASSO FUNDO |
| Province | Rio Grande do Sul |
| River basin | URUGUAI |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -27.554, -52.741 · Open in Google Maps
About PASSO FUNDO
As of June 10, 2026, PASSO FUNDO is filled to 53.9% of its total capacity, holding roughly 757 hm³ of water out of a maximum 1,589 hm³. At this level the reservoir is within its normal operating range. Of that total, about 1,405 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 1.7 percentage points, and it is 9.9 points below its level on the same date a year earlier.
Across the readings we hold for PASSO FUNDO — 52 data points between June 27, 2025 and June 10, 2026 — the level has ranged from a low of 51.7% (April 24, 2026) to a high of 96.2% (November 14, 2025). On average the reservoir is fullest around November and at its lowest around April.
It is operated by ONS primarily for hydroelectric power. It lies within the URUGUAI basin at 27.554°S, 52.741°W.
Key facts
- Current fill level
- 53.9%
- Water stored
- 757 hm³
- Total capacity
- 1,589 hm³
- Usable capacity
- 1,405 hm³
- 7-day change
- ▼ 1.7 pts
- Year-on-year
- ▼ 9.9 pts
- Primary use
- Hydroelectric power
- River
- PASSO FUNDO
- River basin
- URUGUAI
- Operator
- ONS
- Coordinates
- 27.554°S, 52.741°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 53.9% | 757 |
| 5 Jun 2026 | 55.6% | 781 |
| 29 May 2026 | 55.7% | 782 |
| 22 May 2026 | 55.2% | 775 |
| 15 May 2026 | 55.3% | 776 |
| 8 May 2026 | 54.5% | 766 |
| 1 May 2026 | 52.2% | 733 |
| 24 Apr 2026 | 51.7% | 726 |
| 17 Apr 2026 | 53.6% | 753 |
| 10 Apr 2026 | 55.2% | 776 |
| 3 Apr 2026 | 56.5% | 794 |
| 27 Mar 2026 | 58.7% | 824 |
Frequently asked questions
What is the current water level of PASSO FUNDO?
As of June 10, 2026, PASSO FUNDO is at 53.9% of its capacity, holding approximately 757 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is PASSO FUNDO reservoir full?
No. As of June 10, 2026, PASSO FUNDO is within its normal operating range at 53.9% of its capacity, so it is not full.
Is the water level at PASSO FUNDO rising or falling?
The level at PASSO FUNDO is falling — it dropped 1.7 percentage points over the latest week on record.
How much water can PASSO FUNDO hold?
PASSO FUNDO has a total capacity of 1,589 hm³, of which about 1,405 hm³ is usable storage.
Where is PASSO FUNDO reservoir located?
PASSO FUNDO is located in Rio Grande do Sul, Brazil, within the URUGUAI basin (coordinates 27.554°S, 52.741°W).
What is PASSO FUNDO used for?
PASSO FUNDO is used primarily for hydroelectric power, and is managed by ONS.