Corumbá fire, 19 August 2026 Corumbá
The fire started on 19 August 2026 in Corumbá, Brazil, and satellites saw it burning for 18 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 14,585 hectares from heat detections, spread across a single municipality.
It is the 83th largest in Mato Grosso do Sul since 2016 (of 506 with a page). Number 67 in Brazil in 2026, of 747.
- Burnt area
- 14,585ha
- GWIS perimeter (Copernicus)
- Duration
- 18days
- 19 Aug 2026 – 5 Sept 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 19 Aug
- 2026
- Heat detections
- 197
- in a single hotspot: 169 MW
- Danger at start
- 24
- High · FWI index
- Energy released
- 6.9GW
- sum of detected power
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 8 days without rain (1 mm or more) when it started. Rain came after the fire: 5.5 mm on 6 Sept.
This area had burned before
98% of the perimeter overlaps earlier fires recorded since 2016: 394 ha in 2016, 9,915 ha in 2019, 10,399 ha in 2020, 7,644 ha in 2021, 13,991 ha in 2024, 1,488 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 14,330 ha that had burned before.
- 11,538 ha Corumbá fire, June 2024 147,481 ha in total; the hectares shown are those it shares with this fire
- 7,644 ha Corumbá fire, September 2021 44,147 ha in total; the hectares shown are those it shares with this fire
- 6,521 ha Corumbá fire, October 2019 11,689 ha in total; the hectares shown are those it shares with this fire
- 5,833 ha Corumbá fire, September 2020 12,364 ha in total; the hectares shown are those it shares with this fire
- 2,061 ha Corumbá fire, July 2024 21,988 ha in total; the hectares shown are those it shares with this fire
- 1,810 ha Corumbá fire, October 2020 5,778 ha in total; the hectares shown are those it shares with this fire
- 470 ha Corumbá fire, August 2019 4,217 ha in total; the hectares shown are those it shares with this fire
- 37 ha Corumbá fire, July 2024 9,142 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
14,670 ha reached on 19 Aug0.2 %
Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
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) |
|---|---|---|---|---|---|
| 19 Aug | 23.8 °C | 56 % | 37 km/h | 0.0 mm | High 24 |
| 20 Aug | 23.0 °C | 50 % | 37 km/h | 0.0 mm | High 24 |
| 21 Aug | 28.9 °C | 23 % | 25 km/h | 1.0 mm | High 23 |
| 22 Aug | 30.6 °C | 15 % | 35 km/h | 0.0 mm | Very high 39 |
| 23 Aug | 33.0 °C | 20 % | 30 km/h | 0.0 mm | High 37 |
| 24 Aug | 32.5 °C | 26 % | 16 km/h | 0.0 mm | High 33 |
| 25 Aug | 37.0 °C | 24 % | 28 km/h | 0.0 mm | High 37 |
| 26 Aug | 32.8 °C | 42 % | 37 km/h | 1.7 mm | Moderate 19 |
| 27 Aug | 36.8 °C | 35 % | 45 km/h | 0.0 mm | High 34 |
| 28 Aug | 38.6 °C | 30 % | 56 km/h | 0.0 mm | Very high 44 |
| 29 Aug | 38.5 °C | 33 % | 48 km/h | 0.0 mm | Very high 41 |
| 30 Aug | 38.6 °C | 30 % | 37 km/h | 0.0 mm | High 37 |
| 31 Aug | 40.2 °C | 25 % | 52 km/h | 0.0 mm | Very high 49 |
| 1 Sept | 27.6 °C | 62 % | 39 km/h | 0.2 mm | High 24 |
| 2 Sept | 31.5 °C | 38 % | 26 km/h | 0.0 mm | High 24 |
| 3 Sept | 37.2 °C | 31 % | 30 km/h | 0.0 mm | High 32 |
| 4 Sept | 38.9 °C | 32 % | 31 km/h | 0.0 mm | High 34 |
| 5 Sept | 35.2 °C | 40 % | 32 km/h | 0.1 mm | High 34 |
| 6 Sept after | 23.4 °C | 44 % | 41 km/h | 5.5 mm | Low 6 |
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 2 September 2026 the air beside the fire reached 62 µg/m³ of PM2.5. That day averaged 39: 2.6 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 · 197Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 44,147 haCorumbá7 September 2021 · 25 days · 3 km away
- 21,988 haCorumbá17 July 2024 · 22 days · 11 km away
- 22,659 haCorumbá30 July 2020 · 15 days · 23 km away
- 147,481 haCorumbá5 June 2024 · 32 days · 24 km away
- 20,334 haCorumbá27 September 2021 · 7 days · 32 km away
- 19,714 haCorumbá1 July 2021 · 15 days · 35 km away
Frequently asked questions
- How long did the Corumbá fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 19 August 2026 to 5 September 2026 (18 days). The perimeter dates it from 26 August 2026 to 5 September 2026.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 14,585 hectares (145.8 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Corumbá (14,670 ha, 0.2 %).
- What was the weather like?
- During the fire the temperature reached 40.2 °C, humidity dropped to 15 % and gusts hit 56 km/h. The fire danger index (FWI) reached 49, 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
Satellite cross-check
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
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.