Pium fire, 11 September 2026 Pium
The fire started on 11 September 2026 in Pium, Brazil, and satellites saw it burning for 23 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,672 hectares from heat detections, spread across a single municipality.
It is the 319th largest in Tocantins since 2016 (of 1241 with a page). Number 180 in Brazil in 2026, of 751.
Compare with…
Suggestions: Pium · 2024Pium · 2017Pium · 2021Pium · 2019
- Burnt area
- 7,672ha
- GWIS perimeter (Copernicus)
- Duration
- 23days
- 11 Sept 2026 – 3 Oct 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 11 Sept
- 2026
- Heat detections
- 281
- in a single hotspot: 94 MW
- Danger at start
- 37
- High · FWI index
- Average daily power
- 160MW
- 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 2 days without rain (1 mm or more) when it started. Rain came after the fire: 10.7 mm on 2 Oct.
This area had burned before
97% of the perimeter overlaps earlier fires recorded since 2016: 5,292 ha in 2017, 1,441 ha in 2019, 5,624 ha in 2021, 7,161 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 7,409 ha that had burned before.
- 7,161 ha Pium fire, August 2024 43,743 ha in total; the hectares shown are those it shares with this fire
- 5,292 ha Pium fire, August 2017 74,474 ha in total; the hectares shown are those it shares with this fire
- 5,031 ha Pium fire, September 2021 5,403 ha in total; the hectares shown are those it shares with this fire
- 1,441 ha Pium fire, September 2019 4,666 ha in total; the hectares shown are those it shares with this fire
- 277 ha Pium fire, July 2021 12,363 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
-
7,727 ha reached on 11 Sept0.8 %
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 was no noticeable 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) |
|---|---|---|---|---|---|
| 11 Sept | 38.8 °C | 21 % | 31 km/h | 0.0 mm | High 37 |
| 12 Sept | 38.2 °C | 22 % | 30 km/h | 0.0 mm | High 37 |
| 13 Sept | 41.2 °C | 15 % | 24 km/h | 0.0 mm | Very high 41 |
| 14 Sept | 40.1 °C | 26 % | 21 km/h | 0.0 mm | High 38 |
| 15 Sept | 39.9 °C | 24 % | 22 km/h | 0.0 mm | Very high 38 |
| 16 Sept | 38.0 °C | 33 % | 16 km/h | 0.2 mm | High 32 |
| 17 Sept | 39.2 °C | 25 % | 23 km/h | 0.0 mm | High 35 |
| 18 Sept | 39.0 °C | 19 % | 43 km/h | 0.0 mm | Very high 48 |
| 19 Sept | 39.5 °C | 17 % | 42 km/h | 0.0 mm | Very high 50 |
| 20 Sept | 38.1 °C | 22 % | 43 km/h | 0.0 mm | Extreme 51 |
| 21 Sept | 38.5 °C | 26 % | 33 km/h | 0.0 mm | Very high 44 |
| 22 Sept | 40.0 °C | 22 % | 20 km/h | 0.0 mm | Very high 38 |
| 23 Sept | 38.6 °C | 29 % | 33 km/h | 0.0 mm | Very high 43 |
| 24 Sept | 39.2 °C | 28 % | 25 km/h | 0.1 mm | Very high 40 |
| 25 Sept | 35.0 °C | 47 % | 30 km/h | 2.5 mm | Moderate 12 |
| 26 Sept | 35.5 °C | 40 % | 18 km/h | 0.0 mm | High 22 |
| 27 Sept | 38.0 °C | 32 % | 23 km/h | 0.0 mm | High 30 |
| 28 Sept | 38.1 °C | 33 % | 30 km/h | 0.0 mm | High 33 |
| 29 Sept | 38.3 °C | 33 % | 37 km/h | 0.0 mm | High 37 |
| 30 Sept | 38.8 °C | 29 % | 30 km/h | 0.0 mm | High 35 |
| 1 Oct | 38.7 °C | 32 % | 25 km/h | 0.2 mm | High 34 |
| 2 Oct | 31.1 °C | 66 % | 28 km/h | 10.7 mm | Very low 3 |
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 22 September 2026 the air beside the fire reached 264 µg/m³ of PM2.5. That day averaged 126: 8.4 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 · 281Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 43,743 haPium27 August 2024 · 35 days · 17 km away
- 74,474 haPium29 August 2017 · 31 days · 25 km away
- 17,485 haPium19 September 2026 · 9 days · 33 km away
- 12,958 haPium9 August 2016 · 7 days · 36 km away
- 41,580 haPium6 August 2019 · 48 days · 37 km away
- 18,551 haPium29 September 2025 · 11 days · 39 km away
Frequently asked questions
- How long did the Pium fire last?
- GWIS (Copernicus) dates it between 11 September 2026 and 3 October 2026: 23 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 7,672 hectares (76.7 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Pium (7,727 ha, 0.8 %).
- Is the Pium fire still active?
- No fire detections since 3 Oct 2026, 17:15 UTC. A lack of detections is not an official extinction.
- What was the weather like?
- During the fire the temperature reached 41.2 °C, humidity dropped to 15 % and gusts hit 43 km/h. The fire danger index (FWI) reached 51, class 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.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 281 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.