Óbidos fire, 10 October 2025 Óbidos
The fire started on 10 October 2025 in Óbidos, Brazil, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 22,633 hectares from heat detections, spread across a single municipality.
It is the 81th largest in Pará since 2016 (of 1096 with a page). Number 28 in Brazil in 2025, of 714.
- Burnt area
- 22,633ha
- GWIS perimeter (Copernicus)
- Duration
- 12days
- 10 Oct 2025 – 21 Oct 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 10 Oct
- 2025
- Heat detections
- 718
- in a single hotspot: 60 MW
- Danger at start
- 34
- High · FWI index
- Energy released
- 4.7GW
- 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 5 days without rain (1 mm or more) when it started. Rain came after the fire: 3.7 mm on 31 Oct.
This area had burned before
92% of the perimeter overlaps earlier fires recorded since 2016: 5,603 ha in 2016, 5,384 ha in 2017, 6,495 ha in 2018, 4,120 ha in 2019, 896 ha in 2020, 16,457 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 20,907 ha that had burned before.
- 12,919 ha Óbidos fire, September 2023 48,531 ha in total; the hectares shown are those it shares with this fire
- 5,807 ha Óbidos fire, October 2018 22,307 ha in total; the hectares shown are those it shares with this fire
- 4,965 ha Óbidos fire, October 2017 8,878 ha in total; the hectares shown are those it shares with this fire
- 3,464 ha Óbidos fire, August 2023 24,709 ha in total; the hectares shown are those it shares with this fire
- 3,325 ha Óbidos fire, October 2016 12,440 ha in total; the hectares shown are those it shares with this fire
- 853 ha Oriximiná fire, October 2020 14,153 ha in total; the hectares shown are those it shares with this fire
- 419 ha Óbidos fire, October 2017 6,671 ha in total; the hectares shown are those it shares with this fire
- 81 ha Óbidos fire, November 2016 9,748 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
22,796 ha reached on 10 Oct0.8 %
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) |
|---|---|---|---|---|---|
| 3 Oct | 34.8 °C | 35 % | 32 km/h | 0.0 mm | High 34 |
| 4 Oct | 34.9 °C | 36 % | 35 km/h | 0.8 mm | High 28 |
| 5 Oct | 33.7 °C | 40 % | 40 km/h | 0.4 mm | High 31 |
| 6 Oct | 33.9 °C | 39 % | 34 km/h | 0.0 mm | High 30 |
| 7 Oct | 34.2 °C | 36 % | 34 km/h | 0.0 mm | High 29 |
| 8 Oct | 33.9 °C | 37 % | 36 km/h | 0.2 mm | High 33 |
| 9 Oct | 32.6 °C | 40 % | 33 km/h | 0.0 mm | High 30 |
| 10 Oct | 32.6 °C | 44 % | 28 km/h | 0.0 mm | High 28 |
| 11 Oct | 33.6 °C | 38 % | 36 km/h | 0.0 mm | High 32 |
| 12 Oct | 33.9 °C | 34 % | 38 km/h | 0.0 mm | High 34 |
| 13 Oct | 33.9 °C | 31 % | 34 km/h | 0.0 mm | High 35 |
| 14 Oct | 33.5 °C | 36 % | 39 km/h | 0.0 mm | High 36 |
| 15 Oct | 34.1 °C | 32 % | 38 km/h | 0.0 mm | High 38 |
| 16 Oct | 34.4 °C | 31 % | 43 km/h | 0.0 mm | Very high 39 |
| 17 Oct | 33.6 °C | 37 % | 35 km/h | 0.0 mm | High 35 |
| 18 Oct | 34.0 °C | 39 % | 37 km/h | 0.0 mm | High 37 |
| 19 Oct | 34.5 °C | 33 % | 33 km/h | 0.0 mm | High 36 |
| 20 Oct | 34.7 °C | 32 % | 30 km/h | 0.2 mm | High 36 |
| 21 Oct | 32.9 °C | 42 % | 34 km/h | 1.0 mm | High 26 |
| 22 Oct after | 32.6 °C | 42 % | 43 km/h | 0.0 mm | High 32 |
| 23 Oct after | 33.8 °C | 40 % | 47 km/h | 0.9 mm | High 34 |
| 24 Oct after | 34.1 °C | 34 % | 40 km/h | 0.0 mm | High 37 |
| 25 Oct after | 33.8 °C | 37 % | 42 km/h | 0.0 mm | High 38 |
| 26 Oct after | 33.8 °C | 40 % | 37 km/h | 0.1 mm | High 36 |
| 27 Oct after | 33.2 °C | 42 % | 44 km/h | 0.0 mm | Very high 40 |
| 28 Oct after | 33.7 °C | 38 % | 44 km/h | 0.0 mm | Very high 42 |
| 29 Oct after | 33.5 °C | 35 % | 40 km/h | 0.0 mm | Very high 38 |
| 30 Oct after | 33.4 °C | 38 % | 37 km/h | 0.3 mm | Very high 39 |
| 31 Oct after | 32.3 °C | 41 % | 33 km/h | 3.7 mm | Moderate 12 |
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 2025 the air beside the fire reached 20 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 · 718Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 22,307 haÓbidos23 October 2018 · 12 days · 9 km away
- 48,531 haÓbidosSeptember 2023 · 35 days · 10 km away
- 16,178 haÓbidos2 October 2026 · 8 days · 10 km away
- 39,056 haÓbidosSeptember 2026 · 20 days · 15 km away
- 24,709 haÓbidosAugust 2023 · 15 days · 16 km away
- 18,242 haÓbidos21 October 2025 · 16 days · 18 km away
Frequently asked questions
- How long did the Óbidos fire last?
- GWIS (Copernicus) dates it between 10 October 2025 and 21 October 2025: 12 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 22,633 hectares (226.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Óbidos (22,796 ha, 0.8 %).
- What was the weather like?
- During the fire the temperature reached 34.9 °C, humidity dropped to 31 % and gusts hit 43 km/h. The fire danger index (FWI) reached 39, 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.