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BR · Brazil · –

Manaquiri fire, September 2026 Manaquiri

Out · last detection 18 Oct 2026, 05:53 UTC

The fire started on 11 September 2026 in Manaquiri, Brazil, and satellites saw it burning for 38 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 19,458 hectares from heat detections, spread across a single municipality.

Number 36 in Brazil in 2026, of 775.

GWIS near-real-time perimeter, from the layer that changed in October 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.

Compare with…

Suggestions: Manaquiri · 2023

Burnt area
19,458ha
GWIS perimeter (Copernicus)
Duration
38days
11 Sept 2026 – 18 Oct 2026
Municipalities hit
1
municipalities
Started on
11 Sept
2026
Heat detections
916
in a single hotspot: 510 MW
Danger at start
33
High · FWI index
Average daily power
456MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 11 Sept18 Oct
18 Oct 2026

How it evolved, day by day

12 Sept 2026 · 54 MW · 7 13 Sept 2026 · 48 MW · 4 14 Sept 2026 · 23 MW · 3 15 Sept 2026 · 17 MW · 2 16 Sept 2026 · 21 MW · 17 19 Sept 2026 · 615 MW · 50 20 Sept 2026 · 2,322 MW · 145 21 Sept 2026 · 312 MW · 48 22 Sept 2026 · 1,165 MW · 68 23 Sept 2026 · 872 MW · 75 24 Sept 2026 · 82 MW · 22 29 Sept 2026 · 75 MW · 4 30 Sept 2026 · 212 MW · 9 1 Oct 2026 · 143 MW · 10 2 Oct 2026 · 0 MW · 0 3 Oct 2026 · 0 MW · 0 4 Oct 2026 · 46 MW · 5 5 Oct 2026 · 98 MW · 9 6 Oct 2026 · 50 MW · 6 7 Oct 2026 · 332 MW · 53 8 Oct 2026 · 494 MW · 62 9 Oct 2026 · 562 MW · 59 10 Oct 2026 · 2,302 MW · 26 11 Oct 2026 · 57 MW · 9 12 Oct 2026 · 108 MW · 40 13 Oct 2026 · 0 MW · 0 14 Oct 2026 · 8 MW · 1 15 Oct 2026 · 28 MW · 11 16 Oct 2026 · 1,184 MW · 51 17 Oct 2026 · 1,519 MW · 117 18 Oct 2026 · 12 MW · 3
12 Sept 20 Sept 2 Oct 9 Oct 16 Oct

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

39°high
36km/h · peak gust
27%lowest humidity

It had gone 14 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 2 Oct.

This area had burned before

18% of the perimeter overlaps earlier fires recorded since 2016: 2,077 ha in 2018, 1,343 ha in 2020, 3,261 ha in 2023, 2,128 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 3,452 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 12% of the area of London (195 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Manaquiri 17,107 inhabitants where it started
    20,132 ha reached on 12 Sept
    5.0 %

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 2025
Built-up area0.13 ha
Residents≈ 300

Inside the perimeter there were about 0.13 hectares of built-up land and about 300 residents (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)
6 Sept 37.1 °C 32 % 29 km/h 0.0 mm High 33
7 Sept 37.2 °C 35 % 22 km/h 0.0 mm High 30
8 Sept 34.8 °C 47 % 18 km/h 0.0 mm High 26
9 Sept 34.8 °C 49 % 21 km/h 0.0 mm High 25
10 Sept 34.2 °C 52 % 34 km/h 3.7 mm Low 6
11 Sept 33.5 °C 55 % 36 km/h 0.7 mm Moderate 12
12 Sept 34.2 °C 52 % 27 km/h 0.0 mm Moderate 15
13 Sept 36.7 °C 39 % 30 km/h 0.0 mm High 26
14 Sept 37.5 °C 35 % 20 km/h 0.0 mm High 26
15 Sept 36.2 °C 45 % 24 km/h 0.4 mm High 27
16 Sept 35.0 °C 52 % 31 km/h 0.8 mm Moderate 18
17 Sept 33.2 °C 56 % 19 km/h 0.0 mm Moderate 17
18 Sept 34.5 °C 51 % 26 km/h 0.0 mm Moderate 21
19 Sept 34.5 °C 48 % 26 km/h 1.6 mm Moderate 14
20 Sept 37.6 °C 35 % 32 km/h 0.0 mm High 29
21 Sept 37.1 °C 35 % 31 km/h 0.0 mm High 31
22 Sept 38.7 °C 27 % 29 km/h 0.0 mm High 35
23 Sept 38.2 °C 33 % 19 km/h 0.0 mm High 31
24 Sept 36.1 °C 47 % 20 km/h 3.9 mm Low 7
25 Sept 31.3 °C 68 % 34 km/h 7.8 mm Very low 1
26 Sept 33.8 °C 51 % 23 km/h 0.1 mm Low 6
27 Sept 34.7 °C 53 % 23 km/h 0.2 mm Low 11
28 Sept 33.5 °C 62 % 24 km/h 2.7 mm Very low 3
29 Sept 33.3 °C 58 % 22 km/h 0.1 mm Low 8
30 Sept 35.5 °C 46 % 26 km/h 0.0 mm Moderate 14
1 Oct 35.7 °C 46 % 22 km/h 0.0 mm Moderate 16
2 Oct 37.0 °C 39 % 28 km/h 1.2 mm Moderate 17

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 4 Sept 2026
After · 25 Oct 2026

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 · Copernicus

On 26 September 2026 the air beside the fire reached 269 µg/m³ of PM2.5. That day averaged 130: 8.7 times the WHO daily guideline (15).

PM2.5 peak269 µg/m³
Days over the guideline26 days
PM10275 µg/m³
Optical depth2.14
4 Sept10 Sept16 Sept22 Sept28 Sept
Good Fair Moderate Poor Very poor Extremely poor

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 · 916Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Brazil

Frequently asked questions

How long did the Manaquiri fire last?
GWIS (Copernicus) dates it between 11 September 2026 and 18 October 2026: 38 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 19,458 hectares (194.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Manaquiri (20,132 ha, 5.0 %).
Is the Manaquiri fire still active?
No fire detections since 18 Oct 2026, 05:53 UTC. A lack of detections is not an official extinction.
What was the weather like?
During the fire the temperature reached 38.7 °C, humidity dropped to 27 % and gusts hit 36 km/h. The fire danger index (FWI) reached 35, 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 · Emergency number and official warnings

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Area: 20,000 → 19,458 ha.

RSS Changes to this page With cross-checks and a citable version

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 193.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 916 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.

How we build fire pages: methodology

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.