D. FRANCISCA
Rio Grande do Sul · JACUI
Useful capacity
62.56 hm³
Coordinates
29.449°S, 53.283°W
Operator
ONS
89.2% of useful capacity
Current fill
89.2%of useful capacity
vs 10 Sep 2026
StaleTrend
StaleDrought context
Storage vs September average
90%of normal
89.2% full on 2026-09-20, against an average of 98.9% for September across 2 years of readings (-9.7 points).
Rain over the last three months · 11 October 2026
Extremely wet
In the three months to 11 October 2026 the area around D. FRANCISCA had exceptionally wet conditions, a surplus seen about one year in forty. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +2.68). Rain, not storage. Brazil drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 330 hm³ |
| Usable capacity | 62.56 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | JACUÍ |
| Province | Rio Grande do Sul |
| River basin | JACUI |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 29.449°S, 53.283°W · Open in Google Maps
About D. FRANCISCA
As of September 20, 2026, D. FRANCISCA is at 89.2% of useful capacity, holding 55.8 hm³ of 62.56 hm³. Of the 330 hm³ total capacity, that is 16.9%. The reading is past the freshness window, so it is shown as stale.
The 7-day change is not shown, because the latest reading is past the freshness window.
Across the readings we hold for D. FRANCISCA — 56 data points between June 13, 2025 and September 20, 2026 — the level has ranged from a low of 18.6% (June 16, 2025) to a high of 104.8% (November 11, 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 JACUI basin at 29.449°S, 53.283°W.
Key facts
- Current fill level
- 89.2% of useful capacity
- Water stored
- 55.8 hm³
- Total capacity
- 330 hm³
- Usable capacity
- 62.56 hm³
- Change since September 10, 2026
- Stale
- Primary use
- Hydroelectric power
- River
- JACUÍ
- River basin
- JACUI
- Operator
- ONS
- Coordinates
- 29.449°S, 53.283°W
- Last updated
- September 20, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 20 Sep 2026 | 89.2% | 55.8 |
| 19 Sep 2026 | 99.1% | 62 |
| 10 Sep 2026 | 93.4% | 58.4 |
| 9 Sep 2026 | 101.5% | 63.5 |
| 8 Sep 2026 | 100.3% | 62.7 |
| 7 Sep 2026 | 103.3% | 64.6 |
| 20 Jul 2026 | 45.2% | 28.3 |
| 17 Jul 2026 | 72.0% | 45.1 |
| 10 Jul 2026 | 80.6% | 50.4 |
| 28 Jun 2026 | 102.4% | 64.1 |
| 26 Jun 2026 | 103.9% | 65 |
| 19 Jun 2026 | 64.1% | 40.1 |