How long did the Pimenteiras do Oeste fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 4 August 2024 to 1 September 2024 (29 days). The perimeter dates it from 4 August 2024 to 27 August 2024.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,691 hectares (56.9 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Pimenteiras do Oeste (4,970 ha, 0.8 %).

What was the weather like?

During the fire the temperature reached 38.0 °C, humidity dropped to 20 % and gusts hit 42 km/h. The fire danger index (FWI) reached 41, 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.

BR · Brazil · 2024-08-04 → 2024-09-01

Pimenteiras do Oeste fire, August 2024 Pimenteiras do Oeste

Out · last detection 1 Sept 2024, 04:54 UTC

The fire started on 4 August 2024 in Pimenteiras do Oeste, Brazil, and satellites saw it burning for 29 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,691 hectares from heat detections, spread across a single municipality.

It is the 97th largest in Rondônia since 2016 (of 300 with a page). Number 588 in Brazil in 2024, of 1301.

Compare with…

Suggestions: Pimenteiras do Oeste · 2022 Cerejeiras · 2017

Burnt area: 5,691ha; GWIS perimeter (Copernicus)
Duration: 29days; 4 Aug 2024 – 1 Sept 2024
Municipalities hit: 1; municipalities
Started on: 4 Aug; 2024
Heat detections: 336; in a single hotspot: 252 MW
Danger at start: 35; High · FWI index
Average daily power: 419MW; detected power per day, on average

HOTSPOTS BY DAY 4 Aug1 Sept

Play back 1 Sept 2024

How it evolved, day by day

10 Aug 13 Aug 15 Aug 16 Aug 19 Aug 22 Aug 27 Aug 1 Sept

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

The weather it burned in

38°high

42km/h · peak gust

20%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

67% of the perimeter overlaps earlier fires recorded since 2016: 320 ha in 2020, 3,515 ha in 2022.

3,515 ha Pimenteiras do Oeste fire, September 2022 4,587 ha in total; the hectares shown are those it shares with this fire

How big is it?

It burned the equivalent of 3.6% of the area of London (57 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

Pimenteiras do Oeste where it started

4,970 ha reached on 10 Aug

0.8 %

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 area< 0.1 ha

Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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)
4 Aug	36.0 °C	27 %	29 km/h	0.0 mm	High 35
5 Aug	35.9 °C	26 %	30 km/h	0.0 mm	High 36
6 Aug	34.9 °C	26 %	33 km/h	0.0 mm	High 37
7 Aug	34.7 °C	31 %	30 km/h	0.0 mm	High 36
8 Aug	32.6 °C	38 %	34 km/h	0.0 mm	High 37
9 Aug	22.6 °C	54 %	38 km/h	0.0 mm	High 27
10 Aug	27.9 °C	29 %	34 km/h	0.0 mm	High 30
11 Aug	32.4 °C	25 %	23 km/h	0.0 mm	High 36
12 Aug	31.4 °C	24 %	33 km/h	0.0 mm	High 37
13 Aug	32.1 °C	22 %	24 km/h	0.0 mm	High 36
14 Aug	35.6 °C	23 %	15 km/h	0.0 mm	High 36
15 Aug	36.3 °C	26 %	22 km/h	0.0 mm	High 35
16 Aug	36.3 °C	29 %	18 km/h	0.0 mm	High 36
17 Aug	36.5 °C	34 %	20 km/h	0.1 mm	High 34
18 Aug	36.1 °C	34 %	19 km/h	0.0 mm	High 33
19 Aug	35.6 °C	36 %	21 km/h	0.0 mm	High 32
20 Aug	37.4 °C	29 %	21 km/h	0.0 mm	High 33
21 Aug	37.4 °C	24 %	29 km/h	0.0 mm	High 38
22 Aug	38.0 °C	24 %	31 km/h	0.0 mm	Very high 39
23 Aug	35.1 °C	32 %	26 km/h	0.0 mm	High 36
24 Aug	32.5 °C	43 %	34 km/h	0.1 mm	High 35
25 Aug	26.0 °C	37 %	42 km/h	0.0 mm	High 35
26 Aug	28.6 °C	30 %	28 km/h	0.0 mm	High 31
27 Aug	32.8 °C	28 %	17 km/h	0.0 mm	High 31
28 Aug	35.6 °C	24 %	19 km/h	0.0 mm	High 36
29 Aug	38.0 °C	20 %	19 km/h	0.0 mm	Very high 40
30 Aug	36.3 °C	29 %	30 km/h	0.0 mm	Very high 40
31 Aug	36.0 °C	28 %	18 km/h	0.0 mm	Very high 39
1 Sept	34.1 °C	31 %	34 km/h	0.0 mm	Very high 41
2 Sept after	37.0 °C	21 %	24 km/h	0.0 mm	Very high 40
3 Sept after	36.4 °C	28 %	27 km/h	0.0 mm	Very high 40
4 Sept after	35.6 °C	38 %	31 km/h	0.0 mm	High 34
5 Sept after	32.2 °C	37 %	44 km/h	0.2 mm	Very high 39
6 Sept after	35.4 °C	28 %	17 km/h	0.0 mm	High 34
7 Sept after	37.0 °C	22 %	24 km/h	0.0 mm	High 38
8 Sept after	37.2 °C	25 %	19 km/h	0.0 mm	High 36
9 Sept after	38.2 °C	23 %	18 km/h	0.0 mm	High 36
10 Sept after	38.0 °C	27 %	27 km/h	0.0 mm	Very high 40
11 Sept after	36.4 °C	36 %	38 km/h	0.0 mm	Very high 40

Before and after, from space

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

↔

Before · 28 Jul 2024

After · 8 Sept 2024

Before After

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 28 August 2024 the air beside the fire reached 872 µg/m³ of PM2.5. That day averaged 341: 23 times the WHO daily guideline (15).

PM2.5 peak872 µg/m³

Days over the guideline28 days

PM101,244 µg/m³

Optical depth4.73

WHO 15

23456789101112131415161718192021222324252627282930

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 · 336Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

5,400 haCerejeirasSeptember 2017 · 5 days · 24 km away

All fires in Brazil ›

Frequently asked questions

How long did the Pimenteiras do Oeste fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 4 August 2024 to 1 September 2024 (29 days). The perimeter dates it from 4 August 2024 to 27 August 2024.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,691 hectares (56.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Pimenteiras do Oeste (4,970 ha, 0.8 %).
What was the weather like?: During the fire the temperature reached 38.0 °C, humidity dropped to 20 % and gusts hit 42 km/h. The fire danger index (FWI) reached 41, 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 · Emergency number and official warnings ›

INPE · Programa Queimadas ↗
IBAMA · Prevfogo ↗

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

25 October 2026 Last day with fire: 27 August 2024 → 1 September 2024.

RSS Changes to this page

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?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

Your connection to the fire (optional) Email (optional)

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.
Dates adjusted with the VIIRS detections inside the perimeter, which said 4 August 2024 to 27 August 2024. 336 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.

Where it burned