Guiratinga fire, 9 September 2024 Pedra Preta, Guiratinga
The fire started on 9 September 2024 in Guiratinga, Brazil, and satellites saw it burning for 21 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 38,052 hectares from heat detections, spread across 2 municipalities.
It is the 73th largest in Mato Grosso since 2016 (of 1996 with a page). Number 75 in Brazil in 2024, of 1301.
Compare with…
- Burnt area
- 38,052ha
- GWIS perimeter (Copernicus)
- Duration
- 21days
- 9 Sept 2024 – 29 Sept 2024
- Municipalities hit
- 2
- municipalities
- Started on
- 9 Sept
- 2024
- Heat detections
- 1,587
- in a single hotspot: 152 MW
- Danger at start
- 70
- Very extreme · FWI index
- Average daily power
- 849MW
- detected power per day, on average
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 9 Oct.
This area had burned before
55% of the perimeter overlaps earlier fires recorded since 2016: 5,150 ha in 2016, 1,445 ha in 2017, 4,981 ha in 2019, 13,377 ha in 2020, 2,226 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 20,808 ha that had burned before.
- 7,945 ha Pedra Preta fire, August 2020 23,223 ha in total; the hectares shown are those it shares with this fire
- 5,373 ha Pedra Preta fire, September 2020 11,306 ha in total; the hectares shown are those it shares with this fire
- 5,150 ha Pedra Preta fire, September 2016 6,917 ha in total; the hectares shown are those it shares with this fire
- 3,292 ha Pedra Preta fire, August 2019 3,983 ha in total; the hectares shown are those it shares with this fire
- 1,445 ha Guiratinga fire, August 2017 16,170 ha in total; the hectares shown are those it shares with this fire
- 59 ha Guiratinga fire, September 2020 15,092 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Pedra Preta 18,066 inhabitants35,820 ha reached on 9 Sept8.8 %
-
2,419 ha reached on 9 Sept0.5 %
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 2025Inside the perimeter there were about 2.2 hectares of built-up land and about 70 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) |
|---|---|---|---|---|---|
| 9 Sept | 35.8 °C | 3 % | 44 km/h | 0.0 mm | Very extreme 70 |
| 10 Sept | 35.9 °C | 6 % | 40 km/h | 0.0 mm | Extreme 66 |
| 11 Sept | 36.5 °C | 8 % | 46 km/h | 0.0 mm | Very extreme 71 |
| 12 Sept | 36.7 °C | 9 % | 37 km/h | 0.0 mm | Extreme 64 |
| 13 Sept | 37.0 °C | 9 % | 41 km/h | 0.0 mm | Extreme 65 |
| 14 Sept | 36.4 °C | 18 % | 38 km/h | 0.0 mm | Extreme 54 |
| 15 Sept | 35.8 °C | 23 % | 37 km/h | 0.0 mm | Extreme 52 |
| 16 Sept | 32.4 °C | 35 % | 41 km/h | 0.0 mm | Very high 41 |
| 17 Sept | 35.6 °C | 27 % | 28 km/h | 0.0 mm | Very high 38 |
| 18 Sept | 37.7 °C | 13 % | 33 km/h | 0.0 mm | Extreme 50 |
| 19 Sept | 35.9 °C | 25 % | 44 km/h | 0.0 mm | Extreme 52 |
| 20 Sept | 37.0 °C | 17 % | 41 km/h | 0.0 mm | Extreme 50 |
| 21 Sept | 34.6 °C | 17 % | 38 km/h | 0.0 mm | Extreme 52 |
| 22 Sept | 38.1 °C | 5 % | 37 km/h | 0.0 mm | Extreme 61 |
| 23 Sept | 39.0 °C | 8 % | 28 km/h | 0.0 mm | Extreme 53 |
| 24 Sept | 38.8 °C | 15 % | 28 km/h | 0.0 mm | Extreme 52 |
| 25 Sept | 38.1 °C | 20 % | 31 km/h | 0.0 mm | Very high 49 |
| 26 Sept | 37.3 °C | 26 % | 38 km/h | 0.0 mm | Extreme 52 |
| 27 Sept | 31.1 °C | 49 % | 35 km/h | 0.2 mm | High 29 |
| 28 Sept | 35.2 °C | 29 % | 20 km/h | 3.2 mm | Moderate 16 |
| 29 Sept | 37.6 °C | 18 % | 34 km/h | 0.0 mm | Very high 42 |
| 30 Sept after | 37.3 °C | 18 % | 49 km/h | 0.0 mm | Extreme 52 |
| 1 Oct after | 37.3 °C | 21 % | 33 km/h | 0.0 mm | Very high 42 |
| 2 Oct after | 34.4 °C | 35 % | 27 km/h | 0.0 mm | High 36 |
| 3 Oct after | 36.6 °C | 26 % | 31 km/h | 0.0 mm | High 36 |
| 4 Oct after | 38.5 °C | 24 % | 28 km/h | 0.0 mm | Very high 40 |
| 5 Oct after | 38.3 °C | 24 % | 34 km/h | 0.0 mm | Very high 43 |
| 6 Oct after | 40.0 °C | 17 % | 21 km/h | 0.0 mm | Very high 45 |
| 7 Oct after | 37.8 °C | 20 % | 29 km/h | 0.0 mm | Very high 44 |
| 8 Oct after | 37.8 °C | 24 % | 33 km/h | 0.0 mm | Very high 43 |
| 9 Oct after | 34.8 °C | 37 % | 37 km/h | 1.4 mm | High 26 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 27 September 2024 the air beside the fire reached 128 µg/m³ of PM2.5. That day averaged 98: 6.5 times the WHO daily guideline (15).
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 · 1,587Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Guiratinga fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 9 September 2024 to 29 September 2024 (21 days). The perimeter dates it from 9 September 2024 to 26 September 2024.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 38,052 hectares (380.5 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Pedra Preta (35,820 ha, 8.8 %); Guiratinga (2,419 ha, 0.5 %).
- What was the weather like?
- During the fire the temperature reached 39.0 °C, humidity dropped to 3 % and gusts hit 46 km/h. The fire danger index (FWI) reached 71, class Very 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 ›
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.
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
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 9 September 2024 to 26 September 2024. 1,587 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.
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.