PORTO PRIMAVERA
São Paulo · PARANA
Capacity
20,001 hm³
Coordinates
-22.475°N, 52.952°W
Operator
ONS
75.9% full
Current fill
75.9%vs 7 days ago
-20.1%losing
vs 1 year ago
-4.0%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 20,001 hm³ |
| Usable capacity | 4,294 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARANÁ |
| Province | São Paulo |
| River basin | PARANA |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -22.475, -52.952 · Open in Google Maps
About PORTO PRIMAVERA
As of July 28, 2026, PORTO PRIMAVERA is filled to 75.9% of its total capacity, holding roughly 3,259 hm³ of water out of a maximum 20,001 hm³. At this level the reservoir is within its normal operating range. Of that total, about 4,294 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 20.1 percentage points, and it is 4.0 points below its level on the same date a year earlier.
Across the readings we hold for PORTO PRIMAVERA — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 11.9% (October 3, 2025) to a high of 105.0% (August 29, 2025). On average the reservoir is fullest around January and at its lowest around September.
It is operated by ONS primarily for hydroelectric power. It lies within the PARANA basin at 22.475°S, 52.952°W.
Key facts
- Current fill level
- 75.9%
- Water stored
- 3,259 hm³
- Total capacity
- 20,001 hm³
- Usable capacity
- 4,294 hm³
- 7-day change
- ▼ 20.1 pts
- Year-on-year
- ▼ 4.0 pts
- Primary use
- Hydroelectric power
- River
- PARANÁ
- River basin
- PARANA
- Operator
- ONS
- Coordinates
- 22.475°S, 52.952°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 75.9% | 3,259 |
| 24 Jul 2026 | 96.0% | 4,121 |
| 17 Jul 2026 | 63.9% | 2,742 |
| 10 Jul 2026 | 35.9% | 1,540 |
| 3 Jul 2026 | 55.9% | 2,398 |
| 26 Jun 2026 | 63.9% | 2,742 |
| 19 Jun 2026 | 100.0% | 4,294 |
| 12 Jun 2026 | 105.0% | 4,509 |
| 5 Jun 2026 | 100.0% | 4,294 |
| 29 May 2026 | 105.0% | 4,509 |
| 22 May 2026 | 105.0% | 4,509 |
| 15 May 2026 | 100.0% | 4,294 |
Frequently asked questions
What is the current water level of PORTO PRIMAVERA?
As of July 28, 2026, PORTO PRIMAVERA is at 75.9% of its capacity, holding approximately 3,259 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is PORTO PRIMAVERA reservoir full?
No. As of July 28, 2026, PORTO PRIMAVERA is within its normal operating range at 75.9% of its capacity, so it is not full.
Is the water level at PORTO PRIMAVERA rising or falling?
The level at PORTO PRIMAVERA is falling — it dropped 20.1 percentage points over the latest week on record.
How much water can PORTO PRIMAVERA hold?
PORTO PRIMAVERA has a total capacity of 20,001 hm³, of which about 4,294 hm³ is usable storage.
Where is PORTO PRIMAVERA reservoir located?
PORTO PRIMAVERA is located in São Paulo, Brazil, within the PARANA basin (coordinates 22.475°S, 52.952°W).
What is PORTO PRIMAVERA used for?
PORTO PRIMAVERA is used primarily for hydroelectric power, and is managed by ONS.