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PG · Papua New Guinea · –

Middle Fly District fire, 24 September 2026 Middle Fly District

Out · last detection 26 Oct 2026, 04:10 UTC

The fire started on 24 September 2026 in Middle Fly District, Papua New Guinea, and satellites saw it burning for 33 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 12,859 hectares from heat detections, spread across a single municipality.

Number 19 in Papua New Guinea in 2026, of 198.

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.

Burnt area
12,859ha
GWIS perimeter (Copernicus)
Duration
33days
24 Sept 2026 – 26 Oct 2026
Municipalities hit
1
districts
Started on
24 Sept
2026
Heat detections
374
in a single hotspot: 59 MW
Danger at start
25
High · FWI index
Average daily power
104MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 24 Sept26 Oct
26 Oct 2026

How it evolved, day by day

24 Sept 2026 · 5 MW · 1 25 Sept 2026 · 11 MW · 5 26 Sept 2026 · 117 MW · 10 27 Sept 2026 · 105 MW · 12 28 Sept 2026 · 123 MW · 21 29 Sept 2026 · 59 MW · 8 30 Sept 2026 · 35 MW · 9 1 Oct 2026 · 5 MW · 6 2 Oct 2026 · 206 MW · 16 4 Oct 2026 · 102 MW · 11 5 Oct 2026 · 73 MW · 17 6 Oct 2026 · 1,234 MW · 78 7 Oct 2026 · 222 MW · 33 8 Oct 2026 · 129 MW · 25 9 Oct 2026 · 32 MW · 2 10 Oct 2026 · 159 MW · 25 11 Oct 2026 · 95 MW · 26 12 Oct 2026 · 17 MW · 2 13 Oct 2026 · 17 MW · 4 14 Oct 2026 · 23 MW · 4 15 Oct 2026 · 11 MW · 1 16 Oct 2026 · 9 MW · 6 17 Oct 2026 · 44 MW · 28 18 Oct 2026 · 1 MW · 1 19 Oct 2026 · 0 MW · 0 20 Oct 2026 · 0 MW · 0 21 Oct 2026 · 6 MW · 5 22 Oct 2026 · 14 MW · 9 23 Oct 2026 · 37 MW · 6 24 Oct 2026 · 11 MW · 3 25 Oct 2026 · 0 MW · 0 26 Oct 2026 · 0 MW · 0
24 Sept 6 Oct 16 Oct 23 Oct

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

Fire front film How it spread from one satellite pass to the next (67 passes) and with what wind. Watch the film

The weather it burned in

36°high
44km/h · peak gust
28%lowest humidity

It had gone 24 days without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 1 Nov.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 8.1% of the area of London (129 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. Middle Fly District where it started
    13,414 ha reached on 24 Sept
    0.3 %

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)
24 Sept 32.2 °C 45 % 36 km/h 0.0 mm High 25
25 Sept 34.7 °C 36 % 39 km/h 0.0 mm High 27
26 Sept 33.3 °C 40 % 43 km/h 0.0 mm High 28
27 Sept 33.6 °C 39 % 43 km/h 0.0 mm High 29
28 Sept 33.3 °C 39 % 44 km/h 0.0 mm High 30
29 Sept 35.3 °C 32 % 37 km/h 0.0 mm High 28
30 Sept 34.8 °C 32 % 38 km/h 0.0 mm High 29
1 Oct 33.5 °C 41 % 43 km/h 0.0 mm High 35
2 Oct 32.0 °C 46 % 43 km/h 0.2 mm High 33
3 Oct 32.3 °C 43 % 41 km/h 0.0 mm High 28
4 Oct 32.2 °C 48 % 39 km/h 0.0 mm High 25
5 Oct 35.5 °C 38 % 37 km/h 0.0 mm High 27
6 Oct 35.8 °C 31 % 35 km/h 0.0 mm High 28
7 Oct 35.6 °C 31 % 30 km/h 0.0 mm High 26
8 Oct 35.0 °C 36 % 28 km/h 0.0 mm High 24
9 Oct 34.2 °C 40 % 31 km/h 0.0 mm High 21
10 Oct 35.5 °C 33 % 31 km/h 0.0 mm High 25
11 Oct 36.4 °C 28 % 37 km/h 0.0 mm High 26
12 Oct 35.4 °C 37 % 38 km/h 0.0 mm High 25
13 Oct 34.9 °C 38 % 32 km/h 0.0 mm High 25
14 Oct 33.1 °C 43 % 30 km/h 0.0 mm High 28
15 Oct 33.7 °C 45 % 32 km/h 0.2 mm High 24
16 Oct 35.7 °C 34 % 35 km/h 0.0 mm High 30
17 Oct 35.1 °C 36 % 37 km/h 0.0 mm High 25
18 Oct 34.3 °C 40 % 36 km/h 0.0 mm High 25
19 Oct 34.4 °C 37 % 38 km/h 0.0 mm High 26
20 Oct 35.1 °C 39 % 31 km/h 0.0 mm High 28
21 Oct 34.8 °C 42 % 34 km/h 0.0 mm High 27
22 Oct 35.6 °C 44 % 29 km/h 0.0 mm High 26
23 Oct 34.4 °C 44 % 26 km/h 0.0 mm High 23
24 Oct 36.0 °C 42 % 25 km/h 0.0 mm High 25
25 Oct 35.5 °C 48 % 22 km/h 0.2 mm High 25
26 Oct 33.1 °C 54 % 24 km/h 0.3 mm High 22
27 Oct after 34.0 °C 48 % 20 km/h 0.6 mm Moderate 19
28 Oct after 34.7 °C 44 % 26 km/h 0.3 mm High 22
29 Oct after 35.2 °C 47 % 28 km/h 0.2 mm High 22
30 Oct after 34.7 °C 52 % 28 km/h 0.7 mm Moderate 18
31 Oct after 37.3 °C 37 % 28 km/h 0.0 mm High 26
1 Nov after 34.0 °C 50 % 19 km/h 2.0 mm Low 10

Before and after, from space

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

Before · 17 Sept 2026
After · 2 Nov 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 8 October 2026 the air beside the fire reached 138 µg/m³ of PM2.5. That day averaged 66: 4.4 times the WHO daily guideline (15).

PM2.5 peak138 µg/m³
Days over the guideline25 days
PM10143 µg/m³
Optical depth3.05
22 Sept30 Sept8 Oct16 Oct24 Oct
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 · 374Every 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 Papua New Guinea

Frequently asked questions

How long did the Middle Fly District fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 24 September 2026 to 26 October 2026 (33 days). The perimeter dates it from 25 September 2026 to 26 October 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 12,859 hectares (128.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Middle Fly District (13,414 ha, 0.3 %).
Is the Middle Fly District fire still active?
No fire detections since 26 Oct 2026, 04:10 UTC. A lack of detections is not an official extinction.
What was the weather like?
During the fire the temperature reached 36.4 °C, humidity dropped to 28 % and gusts hit 44 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 Papua New Guinea (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.

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 5 November 2026.
  1. Page published (12,859 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
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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 3 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 25 September 2026 to 26 October 2026. 374 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.