Wildfire briefing: Brazil
Probable fires in Brazil in the last 24 hours: 290, with 6,053 heat detections from the VIIRS satellites (NASA FIRMS; latest detection: 3 Nov 2026, 08:15 UTC).
Fires with a WorldFires page still showing heat detections in the last 48 hours: 131.
Largest active fire: Santarém fire, September 2026, with 258,342 hectares burned — perimeter rebuilt from heat detections (Copernicus GWIS); latest heat detection: 3 Nov 2026, 05:54 UTC.
Brazil is running below the usual for this point in the year, at 42 % of the average: 11,383,735 hectares burned up to week 43, against an average of 27,351,974 in 2012–2025 (Copernicus GWIS). No year between 2012 and 2025 had burned this little by now. GWIS estimates for the current year are provisional and may change.
Forecast fire danger for today near Monte Alegre: high (FWI 21), computed by WorldFires from the ECMWF IFS forecast.