← TIETE
NormalHydroelectric

IBITINGA

São Paulo · TIETE

Useful capacity

55.77 hm³

Coordinates

21.758°S, 48.992°W

Operator

ONS

55.5% of useful capacity

Current fill

55.5%

of useful capacity

Normal

vs 7 days ago

-22.2 pp

losing

vs 1 year ago

-16.1 pp

year-over-year

7-day trend

↓

falling

Drought context

Storage vs October average

80%of normal

55.5% full on 2026-10-26, against an average of 69.8% for October across 2 years of readings (-14.3 points).

Rain over the last three months · 11 October 2026

Near normal

In the three months to 11 October 2026 the area around IBITINGA had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +0.84). Rain, not storage. Brazil drought figures →

Catchment Weather

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

Technical specifications

Total capacity985 hm³
Usable capacity55.77 hm³
Primary useHydroelectric
OperatorONS
RiverTIETÊ
ProvinceSão Paulo
River basinTIETE
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. 21.758°S, 48.992°W · Open in Google Maps

About IBITINGA

As of October 26, 2026, IBITINGA is at 55.5% of useful capacity, holding 31 hm³ of 55.77 hm³. Of the 985 hm³ total capacity, that is 3.1%. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has fallen by 22.2 percentage points, and it is 16.1 points below its level on the same date a year earlier.

Across the readings we hold for IBITINGA — 65 data points between October 26, 2025 and October 26, 2026 — the level has ranged from a low of 47.5% (February 13, 2026) to a high of 91.9% (June 19, 2026). On average the reservoir is fullest around December and at its lowest around August.

It is operated by ONS primarily for hydroelectric power. It lies within the TIETE basin at 21.758°S, 48.992°W.

Key facts

Current fill level
55.5% of useful capacity
Water stored
31 hm³
Total capacity
985 hm³
Usable capacity
55.77 hm³
7-day change
▼ 22.2 pp
Year-on-year
▼ 16.1 pp
Primary use
Hydroelectric power
River
TIETÊ
River basin
TIETE
Operator
ONS
Coordinates
21.758°S, 48.992°W
Last updated
October 26, 2026

Recent readings

DateFill levelVolume (hm³)
26 Oct 202655.5%31
25 Oct 202673.6%41.1
24 Oct 202671.6%39.9
23 Oct 202669.6%38.8
22 Oct 202665.5%36.6
21 Oct 202677.7%43.3
20 Oct 202665.5%36.6
19 Oct 202677.7%43.3
18 Oct 202675.6%42.2
17 Oct 202671.6%39.9
16 Oct 202671.6%39.9
15 Oct 202655.5%31

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