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BR · Brazil · –

Brasília fire, September 2022 Brasília

Out · last detection 16 Sept 2022, 16:11 UTC

The fire started on 13 September 2022 in Brasília, Brazil, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,029 hectares from heat detections, spread across a single municipality.

Number 404 in Brazil in 2022, of 682.

Burnt area
4,029ha
GWIS perimeter (Copernicus)
Duration
4days
13 Sept 2022 – 16 Sept 2022
Municipalities hit
1
municipalities
Started on
13 Sept
2022
Heat detections
128
in a single hotspot: 162 MW
Danger at start
41
Very high · FWI index
Average daily power
658MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 13 Sept16 Sept
16 Sept 2022

How it evolved, day by day

13 Sept 2022 · 11 MW · 5 14 Sept 2022 · 1,858 MW · 42 15 Sept 2022 · 721 MW · 67 16 Sept 2022 · 42 MW · 14
13 Sept 14 Sept 15 Sept 16 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

32°high
42km/h · peak gust
11%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 17 Sept.

This area had burned before

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

How big is it?

10 km
It burned the equivalent of 2.5% of the area of London (40 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. Brasília 47,045 inhabitants where it started
    4,050 ha reached on 13 Sept
    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 2020
Built-up area0.79 ha
Residents≈ 70

Inside the perimeter there were about 0.79 hectares of built-up land and about 70 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)
8 Sept 29.1 °C 20 % 36 km/h 0.0 mm Very high 41
9 Sept 29.1 °C 17 % 39 km/h 0.0 mm Very high 43
10 Sept 30.5 °C 12 % 32 km/h 0.0 mm Very high 46
11 Sept 31.8 °C 12 % 29 km/h 0.0 mm Very high 44
12 Sept 31.6 °C 11 % 42 km/h 0.0 mm Extreme 52
13 Sept 32.5 °C 12 % 37 km/h 0.0 mm Extreme 51
14 Sept 31.6 °C 15 % 29 km/h 0.0 mm Very high 47
15 Sept 30.6 °C 26 % 32 km/h 0.0 mm Very high 41
16 Sept 30.4 °C 26 % 35 km/h 0.0 mm Very high 42
17 Sept after 29.5 °C 29 % 37 km/h 1.5 mm High 26

Its twins: fires that started in the same weather

It started with an FWI of 40.9, a minimum humidity of 12% and more than two months without rain. Fires in the area that started in weather like this since 2016: 15.

FWI at the start 40.9
Minimum humidity 12 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Mimoso de Goiás fire, September 2024
13,145 ha 12 days FWI 43.8 Min. humidity 12 % 87 km away, in 2024

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

9 days
median duration
4,989 ha
median area
7 %
went past 10,000 ha
1.7 mm
rain at the end (median; 7 of 15 had it)

It burned an area similar to its twins (4,029 ha against a median of 4,989 ha) and lasted 4 days, against 9 days.

In 8 of 15, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.7 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

1.5 mmfirst rain
17 Septthe day after it ended
42km/h · max. gust

It was considered over on 16 Sept, and on 17 Sept 1.5 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 7 of 15, with a median of 1.7 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 6 Sept 2022
After · 23 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 15 September 2022 the air beside the fire reached 86 µg/m³ of PM2.5. That day averaged 40: 2.6 times the WHO daily guideline (15).

PM2.5 peak86 µg/m³
Days over the guideline8 days
PM10123 µg/m³
Optical depth1.39
11 Sept13 Sept15 Sept17 Sept19 Sept
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 · 128Every 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 Brasília fire last?
GWIS (Copernicus) dates it between 13 September 2022 and 16 September 2022: 4 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 4,029 hectares (40.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Brasília (4,050 ha, 0.7 %).
What was the weather like?
During the fire the temperature reached 32.5 °C, humidity dropped to 11 % and gusts hit 42 km/h. The fire danger index (FWI) reached 52, 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 15. Their median duration was 9 days and their median area 4,989 ha; 7 % went past 10,000 ha. In 8 of 15, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.7 mm.

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.

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 from the perimeter: the VIIRS detections inside it did not change them. 128 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.