Pium fire, 1 September 2026 Pium
The fire started on 1 September 2026 in Pium, Brazil, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,222 hectares from heat detections, spread across a single municipality.
It is the 560th largest in Tocantins since 2016 (of 1242 with a page). Number 327 in Brazil in 2026, of 747.
- Burnt area
- 5,222ha
- GWIS perimeter (Copernicus)
- Duration
- 3days
- 1 Sept 2026 – 3 Sept 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 1 Sept
- 2026
- Heat detections
- 68
- in a single hotspot: 73 MW
- Danger at start
- 40
- Very high · FWI index
- Energy released
- 1.2GW
- 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 46 days without rain (1 mm or more) when it started. Rain came after the fire: 5.3 mm on 4 Sept.
This area had burned before
97% of the perimeter overlaps earlier fires recorded since 2016: 1,976 ha in 2016, 2,894 ha in 2017, 21 ha in 2018, 4,091 ha in 2019, 627 ha in 2020, 651 ha in 2021, 2,869 ha in 2022, 3,542 ha in 2024, 1,769 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 5,048 ha that had burned before.
- 4,066 ha Pium fire, August 2019 41,580 ha in total; the hectares shown are those it shares with this fire
- 3,542 ha Pium fire, August 2024 11,400 ha in total; the hectares shown are those it shares with this fire
- 2,843 ha Pium fire, August 2022 11,834 ha in total; the hectares shown are those it shares with this fire
- 1,625 ha Pium fire, August 2017 74,474 ha in total; the hectares shown are those it shares with this fire
- 1,520 ha Pium fire, October 2025 18,551 ha in total; the hectares shown are those it shares with this fire
- 1,231 ha Pium fire, August 2017 3,561 ha in total; the hectares shown are those it shares with this fire
- 996 ha Pium fire, August 2016 12,958 ha in total; the hectares shown are those it shares with this fire
- 981 ha Pium fire, August 2016 3,927 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
5,259 ha reached on 1 Sept0.5 %
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) |
|---|---|---|---|---|---|
| 1 Sept | 39.6 °C | 24 % | 20 km/h | 0.0 mm | Very high 40 |
| 2 Sept | 38.8 °C | 30 % | 22 km/h | 0.0 mm | Very high 40 |
| 3 Sept | 37.3 °C | 36 % | 15 km/h | 0.0 mm | High 34 |
| 4 Sept after | 34.5 °C | 49 % | 38 km/h | 5.3 mm | Low 9 |
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 5 September 2026 the air beside the fire reached 82 µg/m³ of PM2.5. That day averaged 40: 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 · 68Every 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 Pium fire last?
- GWIS (Copernicus) dates it between 1 September 2026 and 3 September 2026: 3 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 5,222 hectares (52.2 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Pium (5,259 ha, 0.5 %).
- What was the weather like?
- During the fire the temperature reached 39.6 °C, humidity dropped to 24 % and gusts hit 22 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
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.