How long did the Bannach fire last?

GWIS (Copernicus) dates it between 18 August 2024 and 22 September 2024: 36 days between the first and last heat detection of the perimeter.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 27,839 hectares (278.4 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire entered 2 municipalities: Cumaru do Norte (25,843 ha, 1.5 %); Bannach (2,111 ha, 0.7 %).

What was the weather like?

During the fire the temperature reached 38.7 °C, humidity dropped to 16 % and gusts hit 56 km/h. The fire danger index (FWI) reached 50, class Extreme.

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 · 2024-08-18 → 2024-09-22

Bannach fire, 18 August 2024 Cumaru do Norte, Bannach

Out · last detection 23 Sept 2024, 04:38 UTC

The fire started on 18 August 2024 in Bannach, Brazil, and satellites saw it burning for 36 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 27,839 hectares from heat detections, spread across 2 municipalities.

It is the 66th largest in Pará since 2016 (of 1098 with a page). Number 101 in Brazil in 2024, of 1301.

Compare with…

Suggestions: Bannach · 2022 Bannach · 2020 Bannach · 2017 Bannach · 2024

Burnt area: 27,839ha; GWIS perimeter (Copernicus)
Duration: 36days; 18 Aug 2024 – 22 Sept 2024
Municipalities hit: 2; municipalities
Started on: 18 Aug; 2024
Heat detections: 1,476; in a single hotspot: 101 MW
Danger at start: 36; High · FWI index
Average daily power: 216MW; detected power per day, on average

HOTSPOTS BY DAY 18 Aug22 Sept

Play back 23 Sept 2024

How it evolved, day by day

18 Aug 24 Aug 29 Aug 30 Aug 5 Sept 11 Sept 17 Sept 23 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

39°high

56km/h · peak gust

16%lowest humidity

It had gone 39 days without rain (1 mm or more) when it started. Rain came after the fire: 9.1 mm on 30 Sept.

This area had burned before

15% of the perimeter overlaps earlier fires recorded since 2016: 2,636 ha in 2017, 1,194 ha in 2020, 2,801 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 4,182 ha that had burned before.

How big is it?

It burned the equivalent of 18% of the area of London (278 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

Cumaru do Norte 14,036 inhabitants

25,843 ha reached on 18 Aug

1.5 %
Bannach 4,031 inhabitants where it started

2,111 ha reached on 18 Aug

0.7 %

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 area< 0.1 ha

Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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)
11 Aug	34.7 °C	31 %	24 km/h	0.0 mm	High 36
12 Aug	36.5 °C	23 %	28 km/h	0.1 mm	Very high 39
13 Aug	35.2 °C	27 %	34 km/h	0.0 mm	Very high 41
14 Aug	32.2 °C	45 %	30 km/h	8.4 mm	Low 6
15 Aug	31.6 °C	44 %	45 km/h	0.2 mm	Moderate 20
16 Aug	33.4 °C	34 %	40 km/h	0.0 mm	High 29
17 Aug	34.3 °C	29 %	39 km/h	0.0 mm	High 34
18 Aug	34.1 °C	31 %	31 km/h	0.0 mm	High 30
19 Aug	34.0 °C	28 %	35 km/h	0.0 mm	High 33
20 Aug	34.0 °C	29 %	31 km/h	0.0 mm	High 32
21 Aug	34.6 °C	30 %	36 km/h	0.0 mm	High 34
22 Aug	33.7 °C	34 %	38 km/h	0.0 mm	High 36
23 Aug	33.5 °C	33 %	44 km/h	0.0 mm	Very high 38
24 Aug	33.9 °C	28 %	40 km/h	0.0 mm	High 37
25 Aug	35.1 °C	28 %	31 km/h	0.0 mm	High 34
26 Aug	34.0 °C	33 %	26 km/h	0.3 mm	High 33
27 Aug	35.1 °C	28 %	31 km/h	0.0 mm	High 34
28 Aug	34.0 °C	31 %	46 km/h	0.0 mm	Very high 41
29 Aug	33.6 °C	24 %	53 km/h	0.0 mm	Very high 46
30 Aug	33.5 °C	30 %	48 km/h	0.0 mm	Very high 44
31 Aug	34.2 °C	28 %	42 km/h	0.0 mm	Very high 42
1 Sept	35.1 °C	22 %	36 km/h	0.0 mm	Very high 40
2 Sept	35.0 °C	22 %	44 km/h	0.0 mm	Very high 44
3 Sept	35.4 °C	22 %	27 km/h	0.0 mm	Very high 39
4 Sept	37.3 °C	18 %	35 km/h	0.0 mm	Very high 45
5 Sept	36.8 °C	16 %	41 km/h	0.0 mm	Very high 49
6 Sept	36.0 °C	22 %	41 km/h	0.0 mm	Very high 50
7 Sept	36.9 °C	21 %	38 km/h	0.0 mm	Very high 48
8 Sept	35.9 °C	24 %	42 km/h	0.0 mm	Very high 49
9 Sept	36.0 °C	22 %	41 km/h	0.0 mm	Very high 48
10 Sept	36.6 °C	21 %	38 km/h	0.0 mm	Very high 47
11 Sept	37.0 °C	21 %	37 km/h	0.0 mm	Very high 47
12 Sept	36.5 °C	23 %	42 km/h	0.0 mm	Extreme 50
13 Sept	36.3 °C	26 %	42 km/h	0.0 mm	Very high 48
14 Sept	37.4 °C	22 %	44 km/h	0.0 mm	Very high 50
15 Sept	37.9 °C	19 %	38 km/h	0.0 mm	Very high 46
16 Sept	38.1 °C	19 %	28 km/h	0.0 mm	Very high 42
17 Sept	38.7 °C	20 %	33 km/h	0.0 mm	Very high 46
18 Sept	36.0 °C	31 %	56 km/h	0.6 mm	Very high 45
19 Sept	36.0 °C	26 %	43 km/h	0.0 mm	Very high 42
20 Sept	37.3 °C	23 %	37 km/h	0.0 mm	Very high 43
21 Sept	37.0 °C	24 %	35 km/h	0.0 mm	Very high 41
22 Sept	37.4 °C	24 %	35 km/h	0.0 mm	Very high 43
23 Sept after	36.8 °C	29 %	36 km/h	0.2 mm	Very high 42
24 Sept after	36.3 °C	32 %	40 km/h	0.3 mm	Very high 41
25 Sept after	34.6 °C	38 %	32 km/h	0.9 mm	High 28
26 Sept after	35.7 °C	34 %	34 km/h	0.7 mm	High 32
27 Sept after	35.4 °C	36 %	37 km/h	0.9 mm	High 30
28 Sept after	35.5 °C	34 %	30 km/h	0.0 mm	High 31
29 Sept after	35.5 °C	36 %	30 km/h	0.1 mm	High 33
30 Sept after	33.6 °C	44 %	35 km/h	9.1 mm	Low 7

Before and after, from space

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

↔

Before · 11 Aug 2024

After · 29 Sept 2024

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 6 September 2024 the air beside the fire reached 93 µg/m³ of PM2.5. That day averaged 52: 3.5 times the WHO daily guideline (15).

PM2.5 peak93 µg/m³

Days over the guideline29 days

PM10134 µg/m³

Optical depth1.07

WHO 15

1617181920212223242526272829303112345678910111213141516171819202122232425

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 · 1,476Every 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 Bannach fire last?: GWIS (Copernicus) dates it between 18 August 2024 and 22 September 2024: 36 days between the first and last heat detection of the perimeter.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 27,839 hectares (278.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire entered 2 municipalities: Cumaru do Norte (25,843 ha, 1.5 %); Bannach (2,111 ha, 0.7 %).
What was the weather like?: During the fire the temperature reached 38.7 °C, humidity dropped to 16 % and gusts hit 56 km/h. The fire danger index (FWI) reached 50, class Extreme.
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

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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 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 from the perimeter: the VIIRS detections inside it did not change them. 1,476 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