How long did the Nova Mamoré fire last?

GWIS (Copernicus) dates it between 16 August 2024 and 22 September 2024: 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 11,821 hectares (118.2 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Nova Mamoré (11,901 ha, 1.2 %).

What was the weather like?

During the fire the temperature reached 38.4 °C, humidity dropped to 13 % and gusts hit 44 km/h. The fire danger index (FWI) reached 48, 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 · 2024-08-16 → 2024-09-22

Nova Mamoré fire, 16 August 2024 Nova Mamoré

Out · last detection 22 Sept 2024, 04:59 UTC

The fire started on 16 August 2024 in Nova Mamoré, Brazil, and satellites saw it burning for 38 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 11,821 hectares from heat detections, spread across a single municipality.

It is the 35th largest in Rondônia since 2016 (of 300 with a page). Number 263 in Brazil in 2024, of 1301.

Compare with…

Suggestions: Nova Mamoré · 2022 Nova Mamoré · 2024 Nova Mamoré · 2016 Nova Mamoré · 2021

Burnt area: 11,821ha; GWIS perimeter (Copernicus)
Duration: 38days; 16 Aug 2024 – 22 Sept 2024
Municipalities hit: 1; municipalities
Started on: 16 Aug; 2024
Heat detections: 616; in a single hotspot: 159 MW
Danger at start: 48; Very high · FWI index
Average daily power: 116MW; detected power per day, on average

HOTSPOTS BY DAY 16 Aug22 Sept

Play back 22 Sept 2024

How it evolved, day by day

16 Aug 23 Aug 28 Aug 3 Sept 9 Sept 14 Sept 19 Sept 20 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

44km/h · peak gust

13%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 27.5 mm on 27 Sept.

This area had burned before

13% of the perimeter overlaps earlier fires recorded since 2016: 616 ha in 2019, 862 ha in 2021, 1,749 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 1,593 ha that had burned before.

How big is it?

It burned the equivalent of 7.5% of the area of London (118 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

Nova Mamoré 25,444 inhabitants where it started

11,901 ha reached on 15 Aug

1.2 %

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.

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)
13 Aug	33.4 °C	13 %	36 km/h	0.0 mm	Very high 48
14 Aug	34.7 °C	17 %	25 km/h	0.0 mm	Very high 44
15 Aug	36.9 °C	18 %	25 km/h	0.0 mm	Very high 44
16 Aug	37.6 °C	22 %	23 km/h	0.0 mm	Very high 44
17 Aug	35.1 °C	31 %	27 km/h	0.0 mm	Very high 38
18 Aug	36.3 °C	26 %	23 km/h	0.1 mm	High 35
19 Aug	36.3 °C	27 %	27 km/h	0.0 mm	High 38
20 Aug	37.1 °C	28 %	34 km/h	0.0 mm	High 38
21 Aug	36.5 °C	26 %	37 km/h	0.0 mm	Very high 41
22 Aug	36.2 °C	28 %	35 km/h	0.0 mm	Very high 40
23 Aug	37.6 °C	22 %	30 km/h	0.0 mm	Very high 38
24 Aug	37.3 °C	22 %	29 km/h	0.0 mm	Very high 44
25 Aug	27.0 °C	35 %	44 km/h	0.0 mm	Very high 38
26 Aug	28.3 °C	22 %	42 km/h	0.0 mm	Very high 39
27 Aug	32.6 °C	22 %	25 km/h	0.0 mm	High 37
28 Aug	34.8 °C	22 %	30 km/h	0.0 mm	Very high 39
29 Aug	36.8 °C	17 %	26 km/h	0.0 mm	Very high 42
30 Aug	34.8 °C	27 %	29 km/h	0.0 mm	Very high 41
31 Aug	37.9 °C	19 %	29 km/h	0.0 mm	Very high 41
1 Sept	36.8 °C	19 %	31 km/h	0.0 mm	Very high 43
2 Sept	35.7 °C	21 %	34 km/h	0.0 mm	Very high 45
3 Sept	35.6 °C	28 %	31 km/h	0.0 mm	Very high 41
4 Sept	36.2 °C	34 %	28 km/h	0.8 mm	High 28
5 Sept	30.6 °C	51 %	38 km/h	7.7 mm	Low 6
6 Sept	35.9 °C	19 %	27 km/h	0.0 mm	High 32
7 Sept	33.5 °C	34 %	29 km/h	0.0 mm	High 31
8 Sept	34.4 °C	34 %	26 km/h	0.0 mm	High 29
9 Sept	36.6 °C	27 %	21 km/h	0.0 mm	High 30
10 Sept	34.9 °C	35 %	25 km/h	0.0 mm	High 32
11 Sept	34.3 °C	46 %	32 km/h	0.0 mm	High 30
12 Sept	35.7 °C	37 %	30 km/h	0.1 mm	High 27
13 Sept	36.6 °C	28 %	28 km/h	0.0 mm	High 32
14 Sept	37.1 °C	30 %	28 km/h	0.0 mm	High 32
15 Sept	29.4 °C	46 %	26 km/h	0.8 mm	Moderate 20
16 Sept	32.8 °C	35 %	35 km/h	0.1 mm	High 29
17 Sept	35.2 °C	30 %	30 km/h	0.0 mm	High 33
18 Sept	35.4 °C	36 %	20 km/h	0.1 mm	High 30
19 Sept	36.4 °C	29 %	30 km/h	0.0 mm	High 34
20 Sept	37.7 °C	22 %	30 km/h	0.0 mm	Very high 38
21 Sept	38.4 °C	22 %	27 km/h	0.0 mm	High 38
22 Sept	36.7 °C	27 %	26 km/h	0.0 mm	Very high 39
23 Sept after	37.4 °C	30 %	31 km/h	0.1 mm	Very high 38
24 Sept after	37.0 °C	31 %	28 km/h	0.0 mm	High 37
25 Sept after	36.2 °C	34 %	30 km/h	0.2 mm	High 36
26 Sept after	37.7 °C	30 %	26 km/h	0.8 mm	High 30
27 Sept after	25.3 °C	72 %	27 km/h	27.5 mm	Very low 0

Before and after, from space

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

↔

Before · 9 Aug 2024

After · 29 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 27 August 2024 the air beside the fire reached 481 µg/m³ of PM2.5. That day averaged 245: 16 times the WHO daily guideline (15).

PM2.5 peak481 µg/m³

Days over the guideline47 days

PM10687 µg/m³

Optical depth4.36

WHO 15

1314151617181920212223242526272829303112345678910111213141516171819202122232425262728

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 · 616Every 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

All fires in Brazil ›

Frequently asked questions

How long did the Nova Mamoré fire last?: GWIS (Copernicus) dates it between 16 August 2024 and 22 September 2024: 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 11,821 hectares (118.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Nova Mamoré (11,901 ha, 1.2 %).
What was the weather like?: During the fire the temperature reached 38.4 °C, humidity dropped to 13 % and gusts hit 44 km/h. The fire danger index (FWI) reached 48, 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 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

RSS Changes to this page

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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.

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What really happened?

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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 from the perimeter: the VIIRS detections inside it did not change them. 616 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.

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