Maués fire, July 2025 Maués, Apuí
The fire started on 25 July 2025 in Maués, Brazil, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,542 hectares from heat detections, spread across 2 municipalities.
It is the 84th largest in Amazonas since 2016 (of 450 with a page). Number 190 in Brazil in 2025, of 714.
- Burnt area
- 7,542ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 25 Jul 2025 – 28 Jul 2025
- Municipalities hit
- 2
- municipalities
- Started on
- 25 Jul
- 2025
- Heat detections
- 541
- in a single hotspot: 2,075 MW
- Danger at start
- 36
- High · FWI index
- Energy released
- 29.1GW
- 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 30 days without rain (1 mm or more) when it started. Rain came after the fire: 2.7 mm on 10 Aug.
This area had burned before
72% of the perimeter overlaps earlier fires recorded since 2016: 613 ha in 2020, 145 ha in 2021, 3,381 ha in 2022, 1,386 ha in 2023, 4,381 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 5,433 ha that had burned before.
- 3,344 ha Apuí fire, July 2024 20,425 ha in total; the hectares shown are those it shares with this fire
- 2,645 ha Apuí fire, July 2022 11,064 ha in total; the hectares shown are those it shares with this fire
- 613 ha Apuí fire, July 2020 6,878 ha in total; the hectares shown are those it shares with this fire
- 246 ha Apuí fire, August 2024 3,699 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
5,074 ha reached on 25 Jul0.1 %
-
Apuí 20,647 inhabitants2,526 ha reached on 25 Jul0.0 %
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) |
|---|---|---|---|---|---|
| 25 Jul | 37.1 °C | 24 % | 25 km/h | 0.0 mm | High 36 |
| 26 Jul | 35.7 °C | 35 % | 29 km/h | 0.0 mm | High 35 |
| 27 Jul | 32.9 °C | 47 % | 27 km/h | 0.1 mm | High 28 |
| 28 Jul | 34.3 °C | 39 % | 24 km/h | 0.1 mm | High 27 |
| 29 Jul after | 33.3 °C | 45 % | 27 km/h | 0.0 mm | High 27 |
| 30 Jul after | 35.5 °C | 29 % | 24 km/h | 0.0 mm | High 32 |
| 31 Jul after | 35.5 °C | 31 % | 23 km/h | 0.0 mm | High 31 |
| 1 Aug after | 34.3 °C | 47 % | 37 km/h | 2.1 mm | Moderate 17 |
| 2 Aug after | 33.3 °C | 46 % | 44 km/h | 0.3 mm | High 23 |
| 3 Aug after | 33.0 °C | 46 % | 32 km/h | 0.1 mm | High 21 |
| 4 Aug after | 34.2 °C | 42 % | 25 km/h | 0.1 mm | High 25 |
| 5 Aug after | 34.5 °C | 43 % | 26 km/h | 0.1 mm | High 25 |
| 6 Aug after | 33.9 °C | 39 % | 27 km/h | 0.0 mm | High 27 |
| 7 Aug after | 33.5 °C | 34 % | 23 km/h | 0.0 mm | High 28 |
| 8 Aug after | 33.3 °C | 34 % | 23 km/h | 0.0 mm | High 28 |
| 9 Aug after | 31.2 °C | 57 % | 21 km/h | 0.4 mm | High 23 |
| 10 Aug after | 31.3 °C | 48 % | 23 km/h | 2.7 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.
The smoke
CAMS · CopernicusOn 27 July 2025 the air beside the fire reached 129 µg/m³ of PM2.5. That day averaged 82: 5.5 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 · 541Every 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 Maués fire last?
- GWIS (Copernicus) dates it between 25 July 2025 and 28 July 2025: 4 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 7,542 hectares (75.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Maués (5,074 ha, 0.1 %); Apuí (2,526 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 37.1 °C, humidity dropped to 24 % and gusts hit 37 km/h. The fire danger index (FWI) reached 36, class 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.