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Bumba fire, 5 March 2026 Bumba

Out · last detection 9 Mar 2026, 11:05 UTC

The fire started on 5 March 2026 in Bumba, Democratic Republic of the Congo, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 11,102 hectares from heat detections, spread across a single municipality.

It is the 13th largest in Mongala since 2016 (of 27 with a page). Number 155 in Democratic Republic of the Congo in 2026, of 523.

Compare with…
Burnt area
11,102ha
GWIS perimeter (Copernicus)
Duration
8days
5 Mar 2026 – 12 Mar 2026
Municipalities hit
1
territories
Started on
5 Mar
2026
Heat detections
236
in a single hotspot: 107 MW
Danger at start
19
Moderate · FWI index
Average daily power
418MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 5 Mar12 Mar
9 Mar 2026

How it evolved, day by day

5 Mar 2026 · 64 MW · 10 6 Mar 2026 · 547 MW · 44 7 Mar 2026 · 1,076 MW · 66 8 Mar 2026 · 89 MW · 12 9 Mar 2026 · 312 MW · 27
5 Mar 6 Mar 7 Mar 8 Mar 9 Mar

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
32km/h · peak gust
23%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 2.2 mm on 13 Mar.

This area had burned before

86% of the perimeter overlaps earlier fires recorded since 2016: 2,213 ha in 2016, 2,006 ha in 2017, 2,005 ha in 2018, 6,431 ha in 2020, 1,463 ha in 2021, 1,298 ha in 2023, 6,789 ha in 2024, 2,495 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 9,578 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 7% of the area of London (111 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. Bumba where it started
    11,178 ha reached on 26 Feb
    0.7 %

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 area2.6 ha
Residents≈ 400

Inside the perimeter there were about 2.6 hectares of built-up land and about 400 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)
26 Feb 34.9 °C 23 % 23 km/h 0.0 mm Moderate 19
27 Feb 34.7 °C 23 % 27 km/h 0.0 mm High 22
28 Feb 33.9 °C 33 % 32 km/h 0.0 mm High 22
1 Mar 34.3 °C 33 % 22 km/h 0.0 mm High 22
2 Mar 32.2 °C 47 % 30 km/h 0.5 mm Moderate 17
3 Mar 30.1 °C 55 % 28 km/h 0.4 mm Moderate 14
4 Mar 32.3 °C 39 % 19 km/h 0.0 mm Moderate 17
5 Mar 32.8 °C 37 % 24 km/h 0.0 mm Moderate 18
6 Mar 34.6 °C 35 % 21 km/h 0.0 mm Moderate 21
7 Mar 35.6 °C 32 % 28 km/h 0.0 mm High 22
8 Mar 37.4 °C 26 % 24 km/h 0.0 mm High 26
9 Mar 37.7 °C 26 % 18 km/h 0.0 mm High 27
10 Mar 33.1 °C 42 % 22 km/h 0.0 mm High 23
11 Mar 35.4 °C 36 % 28 km/h 0.0 mm High 24
12 Mar 33.6 °C 44 % 25 km/h 1.1 mm Moderate 16
13 Mar after 35.1 °C 40 % 26 km/h 2.2 mm Low 10

Before and after, from space

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

Before · 26 Feb 2026
After · 19 Mar 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 6 March 2026 the air beside the fire reached 77 µg/m³ of PM2.5. That day averaged 60: 4.0 times the WHO daily guideline (15).

PM2.5 peak77 µg/m³
Days over the guideline13 days
PM10104 µg/m³
Optical depth1.03
3456789101112131415
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 · 236Every 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 Bumba fire last?
GWIS (Copernicus) dates it between 5 March 2026 and 12 March 2026: 8 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 11,102 hectares (111.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Bumba (11,178 ha, 0.7 %).
What was the weather like?
During the fire the temperature reached 37.7 °C, humidity dropped to 23 % and gusts hit 32 km/h. The fire danger index (FWI) reached 27, 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; 2 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 236 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.