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HighHydroelectric

SALTO CAXIAS

Paraná · IGUACU

Useful capacity

272.76 hm³

Coordinates

25.541°S, 53.494°W

Operator

ONS

80.3% of useful capacity

Current fill

80.3%

of useful capacity

High

vs 7 days ago

+34.7 pp

gaining

vs 1 year ago

+13.6 pp

year-over-year

7-day trend

↑

rising

Drought context

Storage vs October average

132%of normal

80.3% full on 2026-10-26, against an average of 61.0% for October across 2 years of readings (+19.3 points).

Rain over the last three months · 11 October 2026

Very wet

In the three months to 11 October 2026 the area around SALTO CAXIAS had much more rain than normal, seen about one year in fifteen. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +1.63). Rain, not storage. Brazil drought figures →

Catchment Weather

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

Technical specifications

Total capacity3,573 hm³
Usable capacity272.76 hm³
Primary useHydroelectric
OperatorONS
RiverIGUAÇU
ProvinceParaná
River basinIGUACU
Data source:ONS – Operador Nacional do Sistema Elétrico·Last reading: 2026-10-26

Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 25.541°S, 53.494°W · Open in Google Maps

About SALTO CAXIAS

As of October 26, 2026, SALTO CAXIAS is at 80.3% of useful capacity, holding 219.1 hm³ of 272.76 hm³. Of the 3,573 hm³ total capacity, that is 6.1%. At this level the reservoir is high.

Over the most recent week on record the fill level has risen by 34.7 percentage points, and it is 13.6 points above its level on the same date a year earlier.

Across the readings we hold for SALTO CAXIAS — 65 data points between October 26, 2025 and October 26, 2026 — the level has ranged from a low of 28.1% (February 13, 2026) to a high of 90.4% (July 3, 2026). On average the reservoir is fullest around November and at its lowest around February.

It is operated by ONS primarily for hydroelectric power. It lies within the IGUACU basin at 25.541°S, 53.494°W.

Key facts

Current fill level
80.3% of useful capacity
Water stored
219.1 hm³
Total capacity
3,573 hm³
Usable capacity
272.76 hm³
7-day change
▲ 34.7 pp
Year-on-year
▲ 13.6 pp
Primary use
Hydroelectric power
River
IGUAÇU
River basin
IGUACU
Operator
ONS
Coordinates
25.541°S, 53.494°W
Last updated
October 26, 2026

Recent readings

DateFill levelVolume (hm³)
26 Oct 202680.3%219.1
25 Oct 202689.9%245.3
24 Oct 202679.3%216.4
23 Oct 202645.7%124.5
22 Oct 202646.2%125.9
21 Oct 202640.1%109.5
20 Oct 202639.6%108.1
19 Oct 202645.7%124.5
18 Oct 202654.7%149.2
17 Oct 202641.6%113.6
16 Oct 202648.2%131.4
15 Oct 202645.7%124.5

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