Corumbá fire, 17 September 2020 Corumbá
The fire started on 17 September 2020 in Corumbá, Brazil, and satellites saw it burning for 31 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 98,626 hectares from heat detections, spread across a single municipality.
It is the 8th largest in Mato Grosso do Sul since 2016 (of 506 with a page). Number 8 in Brazil in 2020, of 957.
Compare with…
- Burnt area
- 98,626ha
- GWIS perimeter (Copernicus)
- Duration
- 31days
- 17 Sept 2020 – 17 Oct 2020
- Municipalities hit
- 1
- municipalities
- Started on
- 17 Sept
- 2020
- Heat detections
- 3,712
- in a single hotspot: 615 MW
- Danger at start
- 40
- Very high · FWI index
- Average daily power
- 3.2GW
- 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: 3.2 mm on 20 Oct.
This area had burned before
55% of the perimeter overlaps earlier fires recorded since 2016: 1,248 ha in 2016, 11,192 ha in 2017, 57,346 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 53,954 ha that had burned before.
- 22,927 ha Corumbá fire, September 2019 35,314 ha in total; the hectares shown are those it shares with this fire
- 13,598 ha Corumbá fire, October 2019 92,935 ha in total; the hectares shown are those it shares with this fire
- 4,847 ha Corumbá fire, October 2019 9,426 ha in total; the hectares shown are those it shares with this fire
- 4,694 ha Corumbá fire, September 2017 6,816 ha in total; the hectares shown are those it shares with this fire
- 3,088 ha Corumbá fire, July 2019 3,434 ha in total; the hectares shown are those it shares with this fire
- 2,518 ha Corumbá fire, January 2017 4,251 ha in total; the hectares shown are those it shares with this fire
- 2,295 ha Corumbá fire, October 2019 3,111 ha in total; the hectares shown are those it shares with this fire
- 1,919 ha Corumbá fire, September 2019 3,057 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
-
99,424 ha reached on 17 Sept1.5 %
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 2020Inside the perimeter there were about 3.6 hectares of built-up land and about 100 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) |
|---|---|---|---|---|---|
| 17 Sept | 34.5 °C | 36 % | 36 km/h | 0.0 mm | Very high 40 |
| 18 Sept | 34.9 °C | 34 % | 18 km/h | 0.0 mm | High 30 |
| 19 Sept | 33.1 °C | 36 % | 19 km/h | 0.0 mm | High 31 |
| 20 Sept | 31.3 °C | 43 % | 30 km/h | 5.0 mm | Low 8 |
| 21 Sept | 23.4 °C | 48 % | 43 km/h | 8.9 mm | Very low 4 |
| 22 Sept | 21.8 °C | 72 % | 26 km/h | 10.2 mm | Very low 0 |
| 23 Sept | 33.5 °C | 45 % | 28 km/h | 0.0 mm | Very low 4 |
| 24 Sept | 37.8 °C | 29 % | 32 km/h | 0.0 mm | Moderate 21 |
| 25 Sept | 39.5 °C | 22 % | 32 km/h | 0.0 mm | High 28 |
| 26 Sept | 40.8 °C | 23 % | 40 km/h | 0.0 mm | High 34 |
| 27 Sept | 38.8 °C | 27 % | 56 km/h | 0.0 mm | High 34 |
| 28 Sept | 33.4 °C | 40 % | 39 km/h | 0.0 mm | High 28 |
| 29 Sept | 39.3 °C | 26 % | 36 km/h | 0.0 mm | High 30 |
| 30 Sept | 41.5 °C | 18 % | 40 km/h | 0.0 mm | Very high 43 |
| 1 Oct | 42.1 °C | 19 % | 40 km/h | 0.0 mm | Very high 43 |
| 2 Oct | 40.6 °C | 22 % | 29 km/h | 0.0 mm | High 37 |
| 3 Oct | 40.7 °C | 24 % | 35 km/h | 0.0 mm | Very high 45 |
| 4 Oct | 35.0 °C | 30 % | 32 km/h | 0.0 mm | High 36 |
| 5 Oct | 38.4 °C | 27 % | 36 km/h | 0.0 mm | Very high 39 |
| 6 Oct | 40.2 °C | 26 % | 22 km/h | 0.0 mm | High 33 |
| 7 Oct | 41.0 °C | 25 % | 32 km/h | 0.0 mm | High 36 |
| 8 Oct | 41.4 °C | 23 % | 34 km/h | 0.0 mm | Very high 39 |
| 9 Oct | 41.8 °C | 21 % | 40 km/h | 0.0 mm | Very high 46 |
| 10 Oct | 39.6 °C | 25 % | 26 km/h | 0.0 mm | Very high 43 |
| 11 Oct | 38.9 °C | 26 % | 30 km/h | 0.0 mm | Very high 47 |
| 12 Oct | 37.7 °C | 32 % | 29 km/h | 0.1 mm | Very high 42 |
| 13 Oct | 40.2 °C | 28 % | 29 km/h | 0.3 mm | High 35 |
| 14 Oct | 39.7 °C | 27 % | 43 km/h | 0.0 mm | Very high 44 |
| 15 Oct | 29.2 °C | 49 % | 34 km/h | 2.6 mm | Low 9 |
| 16 Oct | 34.9 °C | 37 % | 18 km/h | 0.0 mm | Moderate 20 |
| 17 Oct | 37.9 °C | 32 % | 33 km/h | 0.3 mm | High 34 |
| 18 Oct after | 36.6 °C | 33 % | 29 km/h | 0.0 mm | High 37 |
| 19 Oct after | 36.3 °C | 32 % | 43 km/h | 0.0 mm | High 38 |
| 20 Oct after | 32.9 °C | 53 % | 33 km/h | 3.2 mm | Low 8 |
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.
Detections table · 3,712Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 35,314 haCorumbá5 September 2019 · 20 days · 9 km away
- 74,804 haCorumbá20 June 2024 · 17 days · 17 km away
- 17,774 haCorumbá6 August 2021 · 6 days · 27 km away
- 92,935 haCorumbá23 October 2019 · 22 days · 33 km away
- 28,304 haCorumbá22 October 2019 · 17 days · 34 km away
- 24,338 haCorumbá24 September 2021 · 13 days · 39 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 17 September 2020 to 17 October 2020 (31 days). The perimeter dates it from 24 September 2020 to 17 October 2020.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 98,626 hectares (986.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Corumbá (99,424 ha, 1.5 %).
- What was the weather like?
- During the fire the temperature reached 42.1 °C, humidity dropped to 18 % and gusts hit 56 km/h. The fire danger index (FWI) reached 47, 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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Start date: 24 September 2020 → 17 September 2020.
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; 4 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 24 September 2020 to 17 October 2020. 3,712 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.
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.