How long did the Manacapuru fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 17 August 2026 to 16 September 2026 (31 days). The perimeter dates it from 17 August 2026 to 9 September 2026.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,782 hectares (87.8 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire entered 2 municipalities: Manacapuru (7,493 ha, 1.0 %); Caapiranga (1,348 ha, 0.1 %).

What was the weather like?

During the fire the temperature reached 37.7 °C, humidity dropped to 30 % and gusts hit 37 km/h. The fire danger index (FWI) reached 35, 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 · 2026-08-17 → 2026-09-16

Manacapuru fire, August 2026 Manacapuru, Caapiranga

Out · last detection 16 Sept 2026, 05:33 UTC

The fire started on 17 August 2026 in Manacapuru, Brazil, and satellites saw it burning for 31 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,782 hectares from heat detections, spread across 2 municipalities.

It is the 56th largest in Amazonas since 2016 (of 450 with a page). Number 140 in Brazil in 2026, of 749.

Compare with…

Suggestions: Caapiranga · 2026 Caapiranga · 2023

Burnt area: 8,782ha; GWIS perimeter (Copernicus)
Duration: 31days; 17 Aug 2026 – 16 Sept 2026
Municipalities hit: 2; municipalities
Started on: 17 Aug; 2026
Heat detections: 377; in a single hotspot: 104 MW
Danger at start: 27; High · FWI index
Average daily power: 130MW; detected power per day, on average

HOTSPOTS BY DAY 17 Aug16 Sept

Play back 16 Sept 2026

How it evolved, day by day

17 Aug 21 Aug 26 Aug 30 Aug 2 Sept 3 Sept 8 Sept 14 Sept

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

The weather it burned in

38°high

37km/h · peak gust

30%lowest humidity

It had gone 12 days without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 10 Sept.

This area had burned before

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

How big is it?

It burned the equivalent of 5.5% of the area of London (88 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

Manacapuru 101,883 inhabitants where it started

7,493 ha reached on 18 Aug

1.0 %
Caapiranga 13,469 inhabitants

1,348 ha reached on 17 Aug

0.1 %

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

People and buildings inside the perimeter

GHSL 2025

Built-up area1.1 ha

Residents≈ 50

Inside the perimeter there were about 1.1 hectares of built-up land and about 50 residents (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)
10 Aug	35.8 °C	37 %	32 km/h	0.0 mm	High 27
11 Aug	35.5 °C	37 %	26 km/h	0.0 mm	High 25
12 Aug	34.4 °C	44 %	21 km/h	0.0 mm	High 24
13 Aug	35.4 °C	39 %	23 km/h	0.0 mm	High 26
14 Aug	35.6 °C	40 %	26 km/h	0.0 mm	High 26
15 Aug	36.0 °C	36 %	27 km/h	0.0 mm	High 27
16 Aug	36.3 °C	35 %	35 km/h	0.0 mm	High 31
17 Aug	36.3 °C	36 %	31 km/h	0.0 mm	High 30
18 Aug	36.1 °C	35 %	37 km/h	0.0 mm	High 32
19 Aug	36.5 °C	34 %	36 km/h	0.0 mm	High 32
20 Aug	36.8 °C	35 %	30 km/h	0.0 mm	High 30
21 Aug	35.5 °C	45 %	24 km/h	0.0 mm	High 27
22 Aug	32.5 °C	62 %	25 km/h	1.6 mm	Low 8
23 Aug	32.7 °C	59 %	34 km/h	0.2 mm	Moderate 13
24 Aug	35.0 °C	40 %	26 km/h	0.0 mm	High 24
25 Aug	36.7 °C	31 %	22 km/h	0.0 mm	High 29
26 Aug	36.2 °C	39 %	28 km/h	0.0 mm	High 31
27 Aug	35.6 °C	44 %	30 km/h	0.0 mm	High 30
28 Aug	36.4 °C	36 %	26 km/h	0.0 mm	High 29
29 Aug	35.5 °C	39 %	31 km/h	0.0 mm	High 30
30 Aug	36.7 °C	37 %	35 km/h	0.0 mm	High 32
31 Aug	37.7 °C	32 %	28 km/h	0.0 mm	High 32
1 Sept	37.5 °C	30 %	31 km/h	0.0 mm	High 34
2 Sept	37.2 °C	33 %	32 km/h	0.0 mm	High 35
3 Sept	37.2 °C	34 %	30 km/h	0.0 mm	High 34
4 Sept	37.0 °C	33 %	28 km/h	0.0 mm	High 34
5 Sept	35.7 °C	41 %	30 km/h	0.0 mm	High 32
6 Sept	36.5 °C	35 %	28 km/h	0.0 mm	High 32
7 Sept	36.0 °C	43 %	16 km/h	0.0 mm	High 27
8 Sept	34.0 °C	52 %	26 km/h	0.0 mm	High 24
9 Sept	34.0 °C	51 %	26 km/h	0.0 mm	High 24
10 Sept	33.9 °C	53 %	34 km/h	1.5 mm	Moderate 12

Before and after, from space

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

↔

Before · 10 Aug 2026

After · 23 Sept 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 27 August 2026 the air beside the fire reached 114 µg/m³ of PM2.5. That day averaged 63: 4.2 times the WHO daily guideline (15).

PM2.5 peak114 µg/m³

Days over the guideline17 days

PM10115 µg/m³

Optical depth0.88

WHO 15

8910111213141516171819202122232425262728293031123456789101112

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 · 377Every 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

Other fires nearby

All fires in Brazil ›

Frequently asked questions

How long did the Manacapuru fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 17 August 2026 to 16 September 2026 (31 days). The perimeter dates it from 17 August 2026 to 9 September 2026.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,782 hectares (87.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire entered 2 municipalities: Manacapuru (7,493 ha, 1.0 %); Caapiranga (1,348 ha, 0.1 %).
What was the weather like?: During the fire the temperature reached 37.7 °C, humidity dropped to 30 % and gusts hit 37 km/h. The fire danger index (FWI) reached 35, 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 · Emergency number and official warnings ›

INPE · Programa Queimadas ↗
IBAMA · Prevfogo ↗

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

RSS Changes to this page

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.

How we know this

Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
Dates adjusted with the VIIRS detections inside the perimeter, which said 17 August 2026 to 9 September 2026. 377 Suomi-NPP VIIRS detections on those dates.
We have not matched this page with any official record.
Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

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.

Where it burned