PORTO PRIMAVERA
São Paulo · PARANA
Capacity
20,001 hm³
Coordinates
-22.475°N, 52.952°W
Operator
ONS
55.9% full
Current fill
55.9%vs 7 days ago
+32.0%gaining
vs 1 year ago
N/A7-day trend
↑rising
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 September 9, 2026, PORTO PRIMAVERA is filled to 55.9% of its total capacity, holding roughly 2,398 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 risen by 32.0 percentage points.
Across the readings we hold for PORTO PRIMAVERA — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 11.9% (October 3, 2025) to a high of 105.0% (October 10, 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
- 55.9%
- Water stored
- 2,398 hm³
- Total capacity
- 20,001 hm³
- Usable capacity
- 4,294 hm³
- 7-day change
- ▲ 32.0 pts
- Primary use
- Hydroelectric power
- River
- PARANÁ
- River basin
- PARANA
- Operator
- ONS
- Coordinates
- 22.475°S, 52.952°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 55.9% | 2,398 |
| 4 Sep 2026 | 23.9% | 1,026 |
| 28 Aug 2026 | 51.8% | 2,226 |
| 21 Aug 2026 | 67.9% | 2,914 |
| 14 Aug 2026 | 105.0% | 4,509 |
| 7 Aug 2026 | 105.0% | 4,509 |
| 31 Jul 2026 | 96.0% | 4,121 |
| 24 Jul 2026 | 87.9% | 3,776 |
| 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 |