Sobral fire, October 2026 Sobral
The fire started on 6 October 2026 in Sobral, Brazil, and satellites saw it burning for 20 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,068 hectares from heat detections, spread across a single municipality.
It is the 19th largest in Ceará since 2016 (of 21 with a page). Number 737 in Brazil in 2026, of 760.
The power measured by the satellite is low (27.5 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
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Is it still active?
No detections since 25 Oct 2026, 16:20 UTC. That usually means no flame is visible from space any more, although hotspots may remain. Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
- Burnt area
- 3,068ha
- GWIS perimeter (Copernicus)
- Duration
- 20days
- 6 Oct 2026 – 25 Oct 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 6 Oct
- 2026
- Heat detections
- 60
- in a single hotspot: 27 MW
- Danger at start
- 46
- Very high · FWI index
- Average daily power
- 46MW
- 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 7 days without rain (1 mm or more) when it started.
This area had burned before
57% of the perimeter overlaps earlier fires recorded since 2016: 799 ha in 2020, 836 ha in 2024, 752 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 1,743 ha that had burned before.
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
-
Sobral where it started3,088 ha reached on 6 Oct1.5 %
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.
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) · forecast models, provisional until the ERA5 reanalysis arrives
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 6 Oct | 36.7 °C | 23 % | 43 km/h | 0.0 mm | Very high 46 |
| 7 Oct | 36.7 °C | 22 % | 42 km/h | 0.0 mm | Very high 45 |
| 8 Oct | 36.6 °C | 26 % | 45 km/h | 0.0 mm | Very high 49 |
| 9 Oct | 35.0 °C | 33 % | 45 km/h | 0.7 mm | High 38 |
| 10 Oct | 35.2 °C | 32 % | 40 km/h | 1.0 mm | High 34 |
| 11 Oct | 35.4 °C | 29 % | 42 km/h | 0.1 mm | Very high 40 |
| 12 Oct | 36.3 °C | 28 % | 49 km/h | 0.1 mm | Very high 41 |
| 13 Oct | 36.0 °C | 24 % | 46 km/h | 0.2 mm | Very high 46 |
| 14 Oct | 36.1 °C | 26 % | 39 km/h | 0.1 mm | Very high 46 |
| 15 Oct | 36.0 °C | 33 % | 35 km/h | 0.0 mm | Very high 44 |
| 16 Oct | 36.5 °C | 31 % | 38 km/h | 0.1 mm | Very high 41 |
| 17 Oct | 36.1 °C | 32 % | 44 km/h | 0.0 mm | Very high 45 |
| 18 Oct | 35.7 °C | 34 % | 43 km/h | 0.0 mm | Very high 43 |
| 19 Oct | 35.9 °C | 28 % | 38 km/h | 0.0 mm | Very high 43 |
| 20 Oct | 35.6 °C | 29 % | 47 km/h | 0.2 mm | Very high 45 |
| 21 Oct | 36.4 °C | 27 % | 49 km/h | 1.0 mm | Very high 42 |
| 22 Oct | 36.0 °C | 34 % | 46 km/h | 1.5 mm | High 32 |
| 23 Oct | 36.9 °C | 25 % | 42 km/h | 0.0 mm | Very high 44 |
| 24 Oct | 37.3 °C | 24 % | 53 km/h | 0.0 mm | Very high 42 |
| 25 Oct | 35.4 °C | 33 % | 37 km/h | 0.4 mm | Very high 43 |
| 26 Oct after | 35.7 °C | 35 % | 37 km/h | 0.0 mm | Very high 42 |
| 27 Oct after | 36.5 °C | 27 % | 37 km/h | 0.0 mm | Very high 44 |
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 16 October 2026 the air beside the fire reached 15 µg/m³ of PM2.5, but no daily average passed the WHO 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 · 60Every 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 Sobral fire last?
- GWIS (Copernicus) dates it between 6 October 2026 and 25 October 2026: 20 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 3,068 hectares (30.7 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Sobral (3,088 ha, 1.5 %).
- Is the Sobral fire still active?
- No fire detections since 25 Oct 2026, 16:20 UTC. A lack of detections is not an official extinction.
- What was the weather like?
- During the fire the temperature reached 37.3 °C, humidity dropped to 22 % and gusts hit 53 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 · 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 26 October 2026.
- Page published (3,068 ha).
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.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 60 Suomi-NPP VIIRS detections on those dates.
- We have not matched this page with any official record.
- Weather: ECMWF IFS model, provisional until the ERA5 reanalysis arrives.
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.