Lábrea fire, 2 August 2024 Lábrea
The fire started on 2 August 2024 in Lábrea, Brazil, and satellites saw it burning for 40 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 42,438 hectares from heat detections, spread across a single municipality.
It is the 2th largest in Amazonas since 2016 (of 450 with a page). Number 67 in Brazil in 2024, of 1301.
Compare with…
Suggestions: Lábrea · 2022Lábrea · 2021Lábrea · 2019Lábrea · 2020
- Burnt area
- 42,438ha
- GWIS perimeter (Copernicus)
- Duration
- 40days
- 2 Aug 2024 – 10 Sept 2024
- Municipalities hit
- 1
- municipalities
- Started on
- 2 Aug
- 2024
- Heat detections
- 4,792
- in a single hotspot: 0 MW
- Danger at start
- 30
- High · FWI index
- Average daily power
- 1.5GW
- 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 26 days without rain (1 mm or more) when it started. Rain came after the fire: 1.3 mm on 15 Sept.
This area had burned before
83% of the perimeter overlaps earlier fires recorded since 2016: 7,846 ha in 2016, 9,137 ha in 2017, 12,668 ha in 2018, 23,085 ha in 2019, 14,166 ha in 2020, 24,723 ha in 2021, 40,916 ha in 2022, 9,380 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 35,150 ha that had burned before.
- 18,766 ha Lábrea fire, August 2022 35,986 ha in total; the hectares shown are those it shares with this fire
- 15,194 ha Lábrea fire, July 2021 41,632 ha in total; the hectares shown are those it shares with this fire
- 12,044 ha Lábrea fire, July 2019 14,628 ha in total; the hectares shown are those it shares with this fire
- 8,289 ha Lábrea fire, August 2020 15,510 ha in total; the hectares shown are those it shares with this fire
- 7,016 ha Lábrea fire, August 2022 6,053 ha in total; the hectares shown are those it shares with this fire
- 2,688 ha Lábrea fire, September 2016 3,224 ha in total; the hectares shown are those it shares with this fire
- 2,228 ha Lábrea fire, September 2018 3,486 ha in total; the hectares shown are those it shares with this fire
- 810 ha Lábrea fire, August 2023 3,019 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
-
42,797 ha0.6 %
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 0.17 hectares of 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) |
|---|---|---|---|---|---|
| 2 Aug | 35.9 °C | 39 % | 34 km/h | 0.1 mm | High 30 |
| 3 Aug | 35.0 °C | 44 % | 28 km/h | 0.1 mm | High 27 |
| 4 Aug | 35.5 °C | 37 % | 28 km/h | 2.9 mm | Low 11 |
| 5 Aug | 36.0 °C | 34 % | 26 km/h | 0.0 mm | High 23 |
| 6 Aug | 33.8 °C | 42 % | 24 km/h | 0.0 mm | High 24 |
| 7 Aug | 33.8 °C | 45 % | 31 km/h | 0.0 mm | High 24 |
| 8 Aug | 36.7 °C | 30 % | 23 km/h | 0.1 mm | High 27 |
| 9 Aug | 29.7 °C | 55 % | 37 km/h | 0.1 mm | High 25 |
| 10 Aug | 28.4 °C | 37 % | 40 km/h | 0.0 mm | High 27 |
| 11 Aug | 31.4 °C | 32 % | 23 km/h | 0.0 mm | High 27 |
| 12 Aug | 34.5 °C | 28 % | 33 km/h | 0.0 mm | High 32 |
| 13 Aug | 34.6 °C | 20 % | 32 km/h | 0.0 mm | Very high 39 |
| 14 Aug | 34.9 °C | 24 % | 22 km/h | 0.0 mm | High 36 |
| 15 Aug | 36.7 °C | 24 % | 20 km/h | 0.0 mm | High 36 |
| 16 Aug | 37.8 °C | 28 % | 20 km/h | 0.4 mm | High 36 |
| 17 Aug | 34.8 °C | 42 % | 22 km/h | 0.7 mm | High 23 |
| 18 Aug | 36.8 °C | 33 % | 23 km/h | 0.1 mm | High 26 |
| 19 Aug | 37.5 °C | 28 % | 24 km/h | 0.0 mm | High 31 |
| 20 Aug | 38.0 °C | 30 % | 30 km/h | 0.0 mm | High 32 |
| 21 Aug | 37.1 °C | 32 % | 31 km/h | 0.0 mm | High 34 |
| 22 Aug | 37.4 °C | 29 % | 30 km/h | 0.0 mm | High 34 |
| 23 Aug | 38.5 °C | 28 % | 26 km/h | 0.0 mm | High 33 |
| 24 Aug | 39.5 °C | 21 % | 23 km/h | 0.0 mm | Very high 39 |
| 25 Aug | 31.5 °C | 37 % | 41 km/h | 0.0 mm | High 36 |
| 26 Aug | 29.5 °C | 27 % | 40 km/h | 0.0 mm | High 37 |
| 27 Aug | 33.2 °C | 26 % | 24 km/h | 0.0 mm | High 33 |
| 28 Aug | 35.1 °C | 27 % | 25 km/h | 0.0 mm | High 33 |
| 29 Aug | 37.0 °C | 26 % | 24 km/h | 0.0 mm | High 34 |
| 30 Aug | 35.5 °C | 34 % | 24 km/h | 0.0 mm | High 34 |
| 31 Aug | 38.6 °C | 24 % | 28 km/h | 0.0 mm | High 36 |
| 1 Sept | 37.9 °C | 25 % | 26 km/h | 0.0 mm | High 38 |
| 2 Sept | 36.5 °C | 26 % | 30 km/h | 0.0 mm | Very high 40 |
| 3 Sept | 35.0 °C | 38 % | 24 km/h | 0.0 mm | High 31 |
| 4 Sept | 36.9 °C | 41 % | 26 km/h | 0.3 mm | High 30 |
| 5 Sept | 35.5 °C | 44 % | 30 km/h | 6.5 mm | Low 8 |
| 6 Sept | 35.3 °C | 32 % | 26 km/h | 0.0 mm | High 24 |
| 7 Sept | 33.3 °C | 46 % | 19 km/h | 0.0 mm | High 22 |
| 8 Sept | 35.8 °C | 38 % | 29 km/h | 0.0 mm | High 24 |
| 9 Sept | 37.4 °C | 30 % | 19 km/h | 0.0 mm | High 28 |
| 10 Sept | 35.9 °C | 42 % | 20 km/h | 0.1 mm | High 28 |
| 11 Sept after | 36.5 °C | 42 % | 28 km/h | 0.0 mm | High 29 |
| 12 Sept after | 36.9 °C | 38 % | 25 km/h | 0.3 mm | High 28 |
| 13 Sept after | 37.9 °C | 34 % | 23 km/h | 0.0 mm | High 27 |
| 14 Sept after | 37.6 °C | 39 % | 22 km/h | 0.0 mm | High 28 |
| 15 Sept after | 32.3 °C | 44 % | 22 km/h | 1.3 mm | Moderate 18 |
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 28 August 2024 the air beside the fire reached 470 µg/m³ of PM2.5. That day averaged 304: 20 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 · 0Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 41,632 haLábrea21 July 2021 · 46 days · 23 km away
- 14,628 haLábrea22 July 2019 · 32 days · 25 km away
- 15,510 haLábrea3 August 2020 · 30 days · 27 km away
- 35,986 haLábrea13 August 2022 · 29 days · 32 km away
- 14,695 haLábrea25 July 2019 · 31 days · 36 km away
- 11,450 haLábrea1 August 2018 · 24 days · 37 km away
Frequently asked questions
- How long did the Lábrea fire last?
- GWIS (Copernicus) dates it between 2 August 2024 and 10 September 2024: 40 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 42,438 hectares (424.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Lábrea (42,797 ha, 0.6 %).
- What was the weather like?
- During the fire the temperature reached 39.5 °C, humidity dropped to 20 % and gusts hit 41 km/h. The fire danger index (FWI) reached 40, 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 · 4 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 12 September 2024 → 10 September 2024.
- Start date: 29 July 2024 → 2 August 2024.
- Last day with fire: 10 September 2024 → 12 September 2024.
- Start date: 2 August 2024 → 29 July 2024.
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; 5 polygons grouped in this page.
- Dates from the perimeter: the VIIRS detections inside it did not change them. No 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.