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PG · Papua New Guinea · –

Middle Fly District fire, 27 September 2026 Middle Fly District

Out · last detection 23 Oct 2026, 04:49 UTC

The fire started on 27 September 2026 in Middle Fly District, Papua New Guinea, and satellites saw it burning for 27 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,513 hectares from heat detections, spread across a single municipality.

Number 81 in Papua New Guinea in 2026, of 196.

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
3,513ha
GWIS perimeter (Copernicus)
Duration
27days
27 Sept 2026 – 23 Oct 2026
Municipalities hit
1
districts
Started on
27 Sept
2026
Heat detections
191
in a single hotspot: 53 MW
Danger at start
25
High · FWI index
Average daily power
39MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 27 Sept23 Oct
23 Oct 2026

How it evolved, day by day

27 Sept 2026 · 3 MW · 1 28 Sept 2026 · 19 MW · 3 30 Sept 2026 · 1 MW · 1 4 Oct 2026 · 1 MW · 1 5 Oct 2026 · 5 MW · 4 6 Oct 2026 · 29 MW · 3 7 Oct 2026 · 36 MW · 8 8 Oct 2026 · 44 MW · 13 9 Oct 2026 · 1 MW · 1 10 Oct 2026 · 65 MW · 11 11 Oct 2026 · 249 MW · 44 12 Oct 2026 · 14 MW · 4 15 Oct 2026 · 0 MW · 0 16 Oct 2026 · 62 MW · 22 17 Oct 2026 · 118 MW · 47 18 Oct 2026 · 7 MW · 4 19 Oct 2026 · 51 MW · 13 20 Oct 2026 · 1 MW · 1 21 Oct 2026 · 11 MW · 3 22 Oct 2026 · 13 MW · 6 23 Oct 2026 · 53 MW · 1
27 Sept 6 Oct 11 Oct 18 Oct 23 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

36°high
40km/h · peak gust
26%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 24 Oct.

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 2.2% of the area of London (35 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
    3,533 ha reached on 27 Sept
    0.1 %

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) · forecast models, provisional until the ERA5 reanalysis arrives

Day High Min. humidity Peak gust Rain Danger (FWI)
27 Sept 34.9 °C 35 % 36 km/h 0.0 mm High 25
28 Sept 34.2 °C 36 % 39 km/h 0.1 mm High 26
29 Sept 34.4 °C 35 % 34 km/h 0.0 mm High 24
30 Sept 35.1 °C 38 % 32 km/h 0.2 mm High 24
1 Oct 34.5 °C 41 % 40 km/h 1.0 mm High 28
2 Oct 33.6 °C 40 % 39 km/h 0.7 mm Moderate 21
3 Oct 31.7 °C 48 % 35 km/h 0.1 mm Moderate 19
4 Oct 32.3 °C 45 % 34 km/h 0.0 mm Moderate 20
5 Oct 34.6 °C 38 % 31 km/h 0.0 mm High 22
6 Oct 35.5 °C 33 % 33 km/h 0.0 mm High 26
7 Oct 35.7 °C 28 % 28 km/h 0.0 mm High 25
8 Oct 36.1 °C 34 % 28 km/h 0.1 mm High 24
9 Oct 35.1 °C 42 % 22 km/h 0.6 mm High 23
10 Oct 36.2 °C 28 % 24 km/h 0.0 mm High 26
11 Oct 36.2 °C 26 % 29 km/h 0.0 mm High 27
12 Oct 35.6 °C 33 % 34 km/h 0.0 mm High 28
13 Oct 34.9 °C 38 % 30 km/h 0.3 mm High 27
14 Oct 34.8 °C 44 % 27 km/h 1.6 mm Moderate 16
15 Oct 33.7 °C 49 % 23 km/h 3.1 mm Low 11
16 Oct 34.8 °C 38 % 34 km/h 0.3 mm Moderate 17
17 Oct 34.7 °C 35 % 31 km/h 0.0 mm High 25
18 Oct 35.0 °C 36 % 27 km/h 0.2 mm High 24
19 Oct 34.8 °C 40 % 29 km/h 0.6 mm High 26
20 Oct 35.7 °C 34 % 29 km/h 0.3 mm High 27
21 Oct 36.0 °C 37 % 29 km/h 0.2 mm High 28
22 Oct 34.5 °C 45 % 23 km/h 4.7 mm Very low 4
23 Oct 34.5 °C 48 % 25 km/h 2.4 mm Very low 4
24 Oct after 35.1 °C 45 % 18 km/h 1.0 mm Low 9

Before and after, from space

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

Before · 20 Sept 2026
After · 30 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 13 October 2026 the air beside the fire reached 292 µg/m³ of PM2.5. That day averaged 115: 7.7 times the WHO daily guideline (15).

PM2.5 peak292 µg/m³
Days over the guideline30 days
PM10301 µg/m³
Optical depth3.14
25 Sept2 Oct9 Oct16 Oct23 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 · 191Every 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 27 September 2026 to 23 October 2026 (27 days). The perimeter dates it from 4 October 2026 to 23 October 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,513 hectares (35.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Middle Fly District (3,533 ha, 0.1 %).
Is the Middle Fly District fire still active?
No fire detections since 23 Oct 2026, 04:49 UTC. A lack of detections is not an official extinction.
What was the weather like?
During the fire the temperature reached 36.2 °C, humidity dropped to 26 % and gusts hit 40 km/h. The fire danger index (FWI) reached 28, 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 (3,513 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.

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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 October 2026 to 23 October 2026. 191 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: ECMWF IFS model, provisional until the ERA5 reanalysis arrives.

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.