FUNIL
Rio de Janeiro · PARAIBA DO SUL
Capacity
888 hm³
Coordinates
-22.529°N, 44.567°W
Operator
ONS
34.1% full
Current fill
34.1%vs 7 days ago
-1.6%losing
vs 1 year ago
+0.1%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 888 hm³ |
| Usable capacity | 605.7 hm³ |
| Primary use | Hydroelectric |
| Operator | ONS |
| River | PARAÍBA SUL |
| Province | Rio de Janeiro |
| River basin | PARAIBA DO SUL |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -22.529, -44.567 · Open in Google Maps
About FUNIL
As of July 28, 2026, FUNIL is filled to 34.1% of its total capacity, holding roughly 206 hm³ of water out of a maximum 888 hm³. At this level the reservoir is low. Of that total, about 606 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 1.6 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for FUNIL — 52 data points between August 15, 2025 and July 28, 2026 — the level has ranged from a low of 23.4% (January 16, 2026) to a high of 81.8% (February 27, 2026). On average the reservoir is fullest around April and at its lowest around October.
It is operated by ONS primarily for hydroelectric power. It lies within the PARAIBA DO SUL basin at 22.529°S, 44.567°W.
Key facts
- Current fill level
- 34.1%
- Water stored
- 206 hm³
- Total capacity
- 888 hm³
- Usable capacity
- 606 hm³
- 7-day change
- ▼ 1.6 pts
- Year-on-year
- ▲ 0.1 pts
- Primary use
- Hydroelectric power
- River
- PARAÍBA SUL
- River basin
- PARAIBA DO SUL
- Operator
- ONS
- Coordinates
- 22.529°S, 44.567°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 34.1% | 206 |
| 24 Jul 2026 | 35.6% | 216 |
| 17 Jul 2026 | 37.9% | 229 |
| 10 Jul 2026 | 39.6% | 240 |
| 3 Jul 2026 | 40.6% | 246 |
| 26 Jun 2026 | 38.2% | 232 |
| 19 Jun 2026 | 36.8% | 223 |
| 12 Jun 2026 | 36.4% | 220 |
| 5 Jun 2026 | 38.1% | 231 |
| 29 May 2026 | 40.2% | 243 |
| 22 May 2026 | 44.3% | 268 |
| 15 May 2026 | 50.4% | 305 |
Frequently asked questions
What is the current water level of FUNIL?
As of July 28, 2026, FUNIL is at 34.1% of its capacity, holding approximately 206 hm³ of water, according to ONS – Operador Nacional do Sistema Elétrico data.
Is FUNIL reservoir full?
No. As of July 28, 2026, FUNIL is low at 34.1% of its capacity, so it is not full.
Is the water level at FUNIL rising or falling?
The level at FUNIL is falling — it dropped 1.6 percentage points over the latest week on record.
How much water can FUNIL hold?
FUNIL has a total capacity of 888 hm³, of which about 606 hm³ is usable storage.
Where is FUNIL reservoir located?
FUNIL is located in Rio de Janeiro, Brazil, within the PARAIBA DO SUL basin (coordinates 22.529°S, 44.567°W).
What is FUNIL used for?
FUNIL is used primarily for hydroelectric power, and is managed by ONS.