Skip to content
worldfires
en
BR · Brazil · →

Aripuanã fire, 25 August 2022 Aripuanã

Out · last detection 19 Sept 2022, 16:57 UTC

The fire started on 25 August 2022 in Aripuanã, Brazil, and satellites saw it burning for 26 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,465 hectares from heat detections, spread across a single municipality.

It is the 664th largest in Mato Grosso since 2016 (of 1996 with a page). Number 181 in Brazil in 2022, of 687.

Compare with…

Suggestions: Aripuanã · 2020Aripuanã · 2019Aripuanã · 2018Aripuanã · 2021

Burnt area
7,465ha
GWIS perimeter (Copernicus)
Duration
26days
25 Aug 2022 – 19 Sept 2022
Municipalities hit
1
municipalities
Started on
25 Aug
2022
Heat detections
673
in a single hotspot: 289 MW
Danger at start
33
High · FWI index
Average daily power
432MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Aug19 Sept
19 Sept 2022

How it evolved, day by day

25 Aug 2022 · 11 MW · 6 26 Aug 2022 · 1 MW · 1 28 Aug 2022 · 13 MW · 1 30 Aug 2022 · 1 MW · 1 1 Sept 2022 · 3 MW · 1 2 Sept 2022 · 167 MW · 7 3 Sept 2022 · 200 MW · 13 4 Sept 2022 · 833 MW · 70 5 Sept 2022 · 4,358 MW · 143 6 Sept 2022 · 2,872 MW · 220 7 Sept 2022 · 271 MW · 82 8 Sept 2022 · 163 MW · 22 9 Sept 2022 · 51 MW · 15 10 Sept 2022 · 11 MW · 6 11 Sept 2022 · 34 MW · 14 12 Sept 2022 · 6 MW · 5 14 Sept 2022 · 12 MW · 6 15 Sept 2022 · 39 MW · 7 16 Sept 2022 · 174 MW · 20 17 Sept 2022 · 203 MW · 23 18 Sept 2022 · 5 MW · 6 19 Sept 2022 · 82 MW · 4
25 Aug 1 Sept 5 Sept 9 Sept 14 Sept 18 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

37°high
45km/h · peak gust
21%lowest humidity

It had gone 15 days without rain (1 mm or more) when it started. Rain came after the fire: 2.5 mm on 29 Sept.

This area had burned before

94% of the perimeter overlaps earlier fires recorded since 2016: 947 ha in 2016, 3,124 ha in 2017, 3,430 ha in 2018, 3,709 ha in 2019, 6,361 ha in 2020, 1,307 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 7,027 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 4.7% of the area of London (75 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

  1. Aripuanã 25,766 inhabitants where it started
    7,516 ha reached on 25 Aug
    0.3 %

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 2020
Built-up area0.88 ha
Residents≈ 60

Inside the perimeter there were about 0.88 hectares of built-up land and about 60 residents (GHSL 2020, 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.

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)
25 Aug 35.6 °C 29 % 21 km/h 0.0 mm High 33
26 Aug 34.6 °C 34 % 22 km/h 0.0 mm High 31
27 Aug 34.4 °C 43 % 25 km/h 0.1 mm High 27
28 Aug 35.9 °C 35 % 24 km/h 0.0 mm High 28
29 Aug 35.8 °C 24 % 45 km/h 0.0 mm Very high 39
30 Aug 36.5 °C 25 % 35 km/h 0.0 mm Very high 38
31 Aug 36.9 °C 23 % 25 km/h 0.0 mm High 34
1 Sept 35.7 °C 29 % 28 km/h 0.0 mm High 35
2 Sept 36.2 °C 27 % 21 km/h 0.0 mm High 35
3 Sept 37.0 °C 21 % 40 km/h 0.0 mm Very high 42
4 Sept 35.8 °C 25 % 38 km/h 0.0 mm Very high 44
5 Sept 36.7 °C 25 % 37 km/h 0.0 mm Very high 44
6 Sept 33.8 °C 35 % 27 km/h 0.1 mm High 34
7 Sept 34.7 °C 43 % 30 km/h 0.1 mm High 29
8 Sept 33.8 °C 47 % 33 km/h 0.5 mm High 26
9 Sept 35.5 °C 44 % 33 km/h 0.9 mm High 22
10 Sept 34.7 °C 39 % 23 km/h 0.0 mm High 26
11 Sept 34.7 °C 39 % 19 km/h 0.0 mm High 27
12 Sept 34.6 °C 45 % 23 km/h 0.0 mm High 26
13 Sept 34.2 °C 42 % 24 km/h 0.2 mm High 28
14 Sept 35.2 °C 38 % 31 km/h 0.0 mm High 28
15 Sept 32.9 °C 44 % 35 km/h 0.3 mm High 32
16 Sept 35.4 °C 35 % 25 km/h 0.0 mm High 30
17 Sept 35.8 °C 38 % 18 km/h 0.0 mm High 29
18 Sept 32.6 °C 53 % 34 km/h 5.7 mm Low 6
19 Sept 36.0 °C 33 % 24 km/h 0.0 mm Moderate 20
20 Sept after 35.6 °C 36 % 23 km/h 0.0 mm High 23
21 Sept after 35.1 °C 39 % 30 km/h 0.3 mm High 27
22 Sept after 33.1 °C 47 % 28 km/h 0.9 mm Moderate 19
23 Sept after 32.9 °C 45 % 23 km/h 0.2 mm Moderate 20
24 Sept after 35.0 °C 39 % 20 km/h 0.2 mm High 22
25 Sept after 37.2 °C 27 % 23 km/h 0.0 mm High 33
26 Sept after 36.1 °C 37 % 29 km/h 0.5 mm High 32
27 Sept after 34.7 °C 42 % 32 km/h 0.2 mm High 29
28 Sept after 36.8 °C 37 % 30 km/h 0.3 mm High 27
29 Sept after 35.5 °C 38 % 22 km/h 2.5 mm Moderate 16

Before and after, from space

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

Before · 18 Aug 2022
After · 26 Sept 2022

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 2022 the air beside the fire reached 404 µg/m³ of PM2.5. That day averaged 238: 16 times the WHO daily guideline (15).

PM2.5 peak404 µg/m³
Days over the guideline16 days
PM10577 µg/m³
Optical depth3.29
3031123456789101112131415
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 · 673Every 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 timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Brazil ›

Frequently asked questions

How long did the Aripuanã fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 25 August 2022 to 19 September 2022 (26 days). The perimeter dates it from 1 September 2022 to 12 September 2022.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 7,465 hectares (74.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Aripuanã (7,516 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 37.0 °C, humidity dropped to 21 % and gusts hit 45 km/h. The fire danger index (FWI) reached 44, class Very 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 ›

Satellite cross-check

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.

Report an error
What do you think is wrong?

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 1 September 2022 to 12 September 2022. 673 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 2020, 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.