How long did the Itacoatiara fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 1 October 2026 to 23 October 2026 (23 days). The perimeter dates it from 3 October 2026 to 22 October 2026.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,393 hectares (33.9 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Itacoatiara (3,416 ha, 0.4 %).

Is the Itacoatiara fire still active?

Yes: satellites detected fire on 23 Oct 2026, 17:43 UTC. Check the emergency service for the official status.

What was the weather like?

During the fire the temperature reached 37.1 °C, humidity dropped to 32 % and gusts hit 45 km/h. The fire danger index (FWI) reached 26, class High.

Where does this data come from?

From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Brazil (geoBoundaries). It is not an official report.

BR · Brazil · 2026-10-01 → 2026-10-23

Itacoatiara fire, 1 October 2026 Itacoatiara

Burning · last detection 23 Oct 2026, 17:43 UTC

The fire started on 1 October 2026 in Itacoatiara, Brazil, and satellites saw it burning for 23 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,393 hectares from heat detections, spread across a single municipality.

It is the 354th largest in Amazonas since 2016 (of 450 with a page). Number 634 in Brazil in 2026, of 747.

Is it still active?

Satellites detected fire on 23 Oct 2026, 17:43 UTC. Everything suggests it is still burning. Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.

Burnt area: 3,393ha; GWIS perimeter (Copernicus)
Duration: 23days; 1 Oct 2026 – 23 Oct 2026
Municipalities hit: 1; municipalities
Started on: 1 Oct; 2026
Heat detections: 320; in a single hotspot: 51 MW
Danger at start: 13; Moderate · FWI index
Energy released: 2.8GW; sum of detected power

Play back 23 Oct 2026

HOTSPOTS BY DAY 1 Oct23 Oct

How it evolved, day by day

1345678910111213141516171819202223

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

37°high

45km/h · peak gust

32%lowest humidity

It had gone one day without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

Itacoatiara 103,598 inhabitants where it started

3,416 ha reached on 1 Oct

0.4 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day	High	Min. humidity	Peak gust	Rain	Danger (FWI)
1 Oct	36.6 °C	41 %	35 km/h	0.9 mm	Moderate 13
2 Oct	36.0 °C	42 %	30 km/h	2.2 mm	Low 8
3 Oct	36.0 °C	39 %	28 km/h	0.5 mm	Moderate 14
4 Oct	35.7 °C	43 %	28 km/h	0.2 mm	Moderate 15
5 Oct	35.9 °C	43 %	31 km/h	0.3 mm	Moderate 16
6 Oct	35.6 °C	42 %	43 km/h	0.1 mm	Moderate 19
7 Oct	36.8 °C	32 %	45 km/h	0.0 mm	High 25
8 Oct	37.1 °C	34 %	41 km/h	0.0 mm	High 24
9 Oct	36.5 °C	39 %	38 km/h	0.2 mm	High 24
10 Oct	36.7 °C	39 %	37 km/h	0.0 mm	High 25
11 Oct	36.4 °C	39 %	38 km/h	1.7 mm	Moderate 18
12 Oct	36.4 °C	40 %	24 km/h	0.8 mm	Moderate 17
13 Oct	35.3 °C	45 %	36 km/h	0.4 mm	Moderate 20
14 Oct	34.3 °C	49 %	32 km/h	0.5 mm	Moderate 18
15 Oct	35.4 °C	46 %	35 km/h	0.3 mm	Moderate 20
16 Oct	36.0 °C	39 %	45 km/h	0.0 mm	High 26
17 Oct	36.6 °C	38 %	35 km/h	0.0 mm	High 24
18 Oct	32.8 °C	56 %	26 km/h	0.8 mm	Moderate 14
19 Oct	33.2 °C	53 %	28 km/h	0.9 mm	Moderate 12

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

↔

Before · 24 Sept 2026

After · 23 Oct 2026

Before After

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 13 October 2026 the air beside the fire reached 146 µg/m³ of PM2.5. That day averaged 80: 5.3 times the WHO daily guideline (15).

PM2.5 peak146 µg/m³

Days over the guideline20 days

PM10148 µg/m³

Optical depth1.63

WHO 15

2930123456789101112131415161718

Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 320Every satellite heat detection, one by one, with time, satellite, power and coordinates.

⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.

Date and time	Satellite	FRP (MW)	Lat	Lon

Frequently asked questions

How long did the Itacoatiara fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 1 October 2026 to 23 October 2026 (23 days). The perimeter dates it from 3 October 2026 to 22 October 2026.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,393 hectares (33.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Itacoatiara (3,416 ha, 0.4 %).
Is the Itacoatiara fire still active?: Yes: satellites detected fire on 23 Oct 2026, 17:43 UTC. Check the emergency service for the official status.
What was the weather like?: During the fire the temperature reached 37.1 °C, humidity dropped to 32 % and gusts hit 45 km/h. The fire danger index (FWI) reached 26, class High.
Where does this data come from?: From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Brazil (geoBoundaries). It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Emergency number: 193

INPE · Programa Queimadas ↗
IBAMA · Prevfogo ↗

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

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What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 193.

Where this data comes from

The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.