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Reservoirs.EARTH
GRANDE
NormalHydroelectric

IGARAPAVA

São Paulo · GRANDE

Capacity

480 hm³

Coordinates

-19.990°N, 47.754°W

Operator

ONS

62.0% full

Current fill

62.0%
Normal

vs 7 days ago

+17.5%

gaining

vs 1 year ago

N/A

7-day trend

rising

Catchment Weather

Past 30 days + 14-day forecast · Open-Meteo

Technical specifications

Total capacity480 hm³
Usable capacity14.61 hm³
Primary useHydroelectric
OperatorONS
RiverGRANDE
ProvinceSão Paulo
River basinGRANDE
Data source:ONS – Operador Nacional do Sistema Elétrico·Last reading: 2026-09-09

Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -19.990, -47.754 · Open in Google Maps

About IGARAPAVA

As of September 9, 2026, IGARAPAVA is filled to 62.0% of its total capacity, holding roughly 9 hm³ of water out of a maximum 480 hm³. At this level the reservoir is within its normal operating range. Of that total, about 15 hm³ is usable (live) storage.

Over the most recent week on record the fill level has risen by 17.5 percentage points.

Across the readings we hold for IGARAPAVA — 52 data points between September 26, 2025 and September 9, 2026 — the level has ranged from a low of 2.5% (October 17, 2025) to a high of 100.0% (April 17, 2026). On average the reservoir is fullest around April and at its lowest around November.

It is operated by ONS primarily for hydroelectric power. It lies within the GRANDE basin at 19.990°S, 47.754°W.

Key facts

Current fill level
62.0%
Water stored
9 hm³
Total capacity
480 hm³
Usable capacity
15 hm³
7-day change
▲ 17.5 pts
Primary use
Hydroelectric power
River
GRANDE
River basin
GRANDE
Operator
ONS
Coordinates
19.990°S, 47.754°W
Last updated
September 9, 2026

Recent readings

DateFill levelVolume (hm³)
9 Sep 202662.0%9
4 Sep 202644.5%7
28 Aug 202657.0%8
21 Aug 202654.5%8
14 Aug 202627.1%4
7 Aug 202662.0%9
31 Jul 202637.0%5
24 Jul 2026100.0%15
17 Jul 202649.5%7
10 Jul 202674.6%11
3 Jul 202659.5%9
26 Jun 202662.0%9

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