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Bulungu fire, 27 July 2026 Bulungu, Idiofa

Out · last detection 14 Sept 2026, 12:06 UTC

The fire started on 27 July 2026 in Bulungu, Democratic Republic of the Congo, and satellites saw it burning for 50 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 305,095 hectares from heat detections, spread across 2 municipalities.

This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.

Other fire pages in the same area and on the same dates:

It is the largest fire in Kwilu since 2016 (of 235 with a page). The largest in Democratic Republic of the Congo in 2026, of 523.

Compare with…
Burnt area
305,095ha
GWIS perimeter (Copernicus)
Duration
50days
27 Jul 2026 – 14 Sept 2026
Municipalities hit
2
territories
Started on
27 Jul
2026
Heat detections
8,352
in a single hotspot: 271 MW
Danger at start
28
High · FWI index
Average daily power
2.8GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 27 Jul14 Sept
14 Sept 2026

How it evolved, day by day

27 Jul 2026 · 79 MW · 8 28 Jul 2026 · 104 MW · 12 29 Jul 2026 · 135 MW · 10 30 Jul 2026 · 521 MW · 38 1 Aug 2026 · 596 MW · 70 2 Aug 2026 · 388 MW · 37 5 Aug 2026 · 1,778 MW · 168 6 Aug 2026 · 4,152 MW · 323 7 Aug 2026 · 5 MW · 1 8 Aug 2026 · 4,625 MW · 380 9 Aug 2026 · 518 MW · 54 10 Aug 2026 · 848 MW · 114 11 Aug 2026 · 985 MW · 119 12 Aug 2026 · 4,583 MW · 450 13 Aug 2026 · 7,747 MW · 519 14 Aug 2026 · 422 MW · 38 15 Aug 2026 · 1,321 MW · 131 16 Aug 2026 · 3,775 MW · 268 17 Aug 2026 · 11,631 MW · 1096 19 Aug 2026 · 21,178 MW · 1068 20 Aug 2026 · 8,995 MW · 578 21 Aug 2026 · 2,614 MW · 183 22 Aug 2026 · 7,448 MW · 464 23 Aug 2026 · 1,310 MW · 74 24 Aug 2026 · 7,466 MW · 476 25 Aug 2026 · 4,404 MW · 293 26 Aug 2026 · 1,452 MW · 106 27 Aug 2026 · 2,349 MW · 225 28 Aug 2026 · 1,313 MW · 122 30 Aug 2026 · 65 MW · 3 31 Aug 2026 · 1,020 MW · 95 1 Sept 2026 · 3,588 MW · 278 2 Sept 2026 · 4,092 MW · 292 3 Sept 2026 · 1,769 MW · 96 4 Sept 2026 · 751 MW · 36 5 Sept 2026 · 383 MW · 17 6 Sept 2026 · 43 MW · 6 7 Sept 2026 · 510 MW · 38 10 Sept 2026 · 492 MW · 25 12 Sept 2026 · 288 MW · 25 13 Sept 2026 · 292 MW · 11 14 Sept 2026 · 174 MW · 5
27 Jul 5 Aug 11 Aug 17 Aug 19 Aug 24 Aug 31 Aug 6 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

37°high
34km/h · peak gust
32%lowest humidity

It had gone 35 days without rain (1 mm or more) when it started. Rain came after the fire: 1.9 mm on 15 Sept.

This area had burned before

84% of the perimeter overlaps earlier fires recorded since 2016: 103,210 ha in 2016, 73,096 ha in 2017, 53,521 ha in 2018, 84,830 ha in 2019, 157,673 ha in 2020, 42,613 ha in 2021, 73,760 ha in 2022, 57,117 ha in 2023, 123,786 ha in 2024, 113,347 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 255,422 ha that had burned before.

How big is it?

20 km
It burned the equivalent of 1.9 times the area of London (3,051 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. Bulungu where it started
    262,219 ha reached on 27 Jul
    20 %
  2. 44,791 ha reached on 27 Jul
    2.3 %

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 area639 ha
Residents≈ 75,000

Inside the perimeter there were about 639 hectares of built-up land and about 75,000 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)
27 Jul 34.6 °C 33 % 21 km/h 0.0 mm High 28
28 Jul 32.6 °C 36 % 28 km/h 0.0 mm High 29
29 Jul 31.9 °C 41 % 22 km/h 0.0 mm High 27
30 Jul 31.7 °C 47 % 31 km/h 5.0 mm Low 6
31 Jul 29.6 °C 59 % 23 km/h 2.7 mm Very low 4
1 Aug 32.3 °C 40 % 22 km/h 0.0 mm Moderate 14
2 Aug 32.1 °C 43 % 20 km/h 0.0 mm Moderate 18
3 Aug 31.6 °C 44 % 24 km/h 0.1 mm Moderate 18
4 Aug 32.7 °C 45 % 25 km/h 0.3 mm Moderate 19
5 Aug 33.6 °C 35 % 17 km/h 0.0 mm High 22
6 Aug 32.8 °C 38 % 24 km/h 0.0 mm High 23
7 Aug 30.2 °C 53 % 30 km/h 0.0 mm Moderate 21
8 Aug 32.6 °C 45 % 23 km/h 0.8 mm Moderate 17
9 Aug 32.2 °C 47 % 21 km/h 0.5 mm Moderate 18
10 Aug 32.8 °C 44 % 23 km/h 0.3 mm Moderate 20
11 Aug 31.9 °C 47 % 24 km/h 0.3 mm Moderate 21
12 Aug 34.3 °C 38 % 19 km/h 0.1 mm High 23
13 Aug 34.5 °C 41 % 23 km/h 0.1 mm High 24
14 Aug 32.7 °C 46 % 24 km/h 0.6 mm Moderate 18
15 Aug 32.9 °C 40 % 19 km/h 0.0 mm Moderate 21
16 Aug 33.1 °C 37 % 22 km/h 0.1 mm High 24
17 Aug 34.2 °C 33 % 22 km/h 0.0 mm High 27
18 Aug 33.2 °C 35 % 24 km/h 0.0 mm High 27
19 Aug 33.6 °C 34 % 22 km/h 0.0 mm High 28
20 Aug 33.4 °C 36 % 27 km/h 0.0 mm High 28
21 Aug 33.3 °C 38 % 22 km/h 0.1 mm High 28
22 Aug 33.7 °C 47 % 25 km/h 4.5 mm Low 6
23 Aug 33.6 °C 48 % 23 km/h 1.8 mm Low 8
24 Aug 33.3 °C 40 % 21 km/h 0.0 mm Moderate 18
25 Aug 34.3 °C 42 % 23 km/h 0.2 mm Moderate 21
26 Aug 32.7 °C 48 % 19 km/h 2.7 mm Low 7
27 Aug 36.9 °C 32 % 21 km/h 0.1 mm High 21
28 Aug 33.6 °C 46 % 32 km/h 12.2 mm Very low 3
29 Aug 28.9 °C 61 % 27 km/h 1.3 mm Very low 4
30 Aug 33.1 °C 46 % 22 km/h 0.0 mm Low 11
31 Aug 32.0 °C 52 % 26 km/h 0.4 mm Moderate 12
1 Sept 36.0 °C 38 % 22 km/h 0.4 mm Moderate 18
2 Sept 34.4 °C 46 % 20 km/h 1.9 mm Low 8
3 Sept 28.8 °C 62 % 34 km/h 4.9 mm Very low 2
4 Sept 34.1 °C 42 % 22 km/h 0.2 mm Low 9
5 Sept 34.2 °C 45 % 25 km/h 0.4 mm Moderate 13
6 Sept 33.4 °C 48 % 19 km/h 1.5 mm Low 7
7 Sept 32.4 °C 54 % 27 km/h 4.7 mm Very low 2
8 Sept 32.6 °C 48 % 23 km/h 0.1 mm Low 8
9 Sept 33.3 °C 45 % 26 km/h 0.8 mm Low 11
10 Sept 32.7 °C 47 % 24 km/h 3.2 mm Very low 3
11 Sept 31.2 °C 54 % 23 km/h 8.9 mm Very low 1
12 Sept 32.6 °C 47 % 27 km/h 0.1 mm Very low 5
13 Sept 32.0 °C 52 % 26 km/h 0.3 mm Low 8
14 Sept 33.4 °C 48 % 20 km/h 0.3 mm Low 9
15 Sept after 33.6 °C 49 % 23 km/h 1.9 mm Very low 5

Before and after, from space

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

Before · 20 Jul 2026
After · 21 Sept 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 19 August 2026 the air beside the fire reached 542 µg/m³ of PM2.5. That day averaged 324: 22 times the WHO daily guideline (15).

PM2.5 peak542 µg/m³
Days over the guideline55 days
PM10562 µg/m³
Optical depth3.59
25262728293031123456789101112131415161718192021222324252627282930311234567891011121314151617
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 · 8,352Every 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 Democratic Republic of the Congo ›

Frequently asked questions

How long did the Bulungu fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 27 July 2026 to 14 September 2026 (50 days). The perimeter dates it from 3 August 2026 to 13 September 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 305,095 hectares (3,051.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Bulungu (262,219 ha, 20 %); Idiofa (44,791 ha, 2.3 %).
What was the weather like?
During the fire the temperature reached 36.9 °C, humidity dropped to 32 % and gusts hit 34 km/h. The fire danger index (FWI) reached 29, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Democratic Republic of the Congo (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 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

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; 8 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 3 August 2026 to 13 September 2026. 8,352 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.