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CG · Republic of the Congo · →

Kellé fire, 21 July 2026 Kellé

Out · last detection 29 Jul 2026, 11:47 UTC

The fire started on 21 July 2026 in Kellé, Republic of the Congo, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,143 hectares from heat detections, spread across a single municipality.

It is the 15th largest in Plateaux since 2016 (of 304 with a page). Number 33 in Republic of the Congo in 2026, of 360.

Compare with…
Burnt area
3,143ha
GWIS perimeter (Copernicus)
Duration
9days
21 Jul 2026 – 29 Jul 2026
Municipalities hit
1
districts
Started on
21 Jul
2026
Heat detections
47
in a single hotspot: 88 MW
Danger at start
10
Low · FWI index
Average daily power
194MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 21 Jul29 Jul
29 Jul 2026

How it evolved, day by day

21 Jul 2026 · 2 MW · 1 24 Jul 2026 · 668 MW · 35 25 Jul 2026 · 11 MW · 1 26 Jul 2026 · 270 MW · 8 29 Jul 2026 · 18 MW · 1
21 Jul 24 Jul 25 Jul 26 Jul 29 Jul

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

The weather it burned in

32°high
34km/h · peak gust
56%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started. Rain came after the fire: 2.6 mm on 30 Jul.

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% of the area of London (31 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. Kellé where it started
    3,164 ha reached on 20 Jul
    0.4 %

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)
21 Jul 31.7 °C 57 % 27 km/h 0.9 mm Low 10
22 Jul 31.0 °C 59 % 27 km/h 0.7 mm Moderate 11
23 Jul 29.4 °C 57 % 24 km/h 0.2 mm Moderate 13
24 Jul 29.8 °C 59 % 24 km/h 0.1 mm Moderate 14
25 Jul 29.6 °C 59 % 28 km/h 0.3 mm Moderate 14
26 Jul 31.3 °C 56 % 27 km/h 0.2 mm Moderate 15
27 Jul 29.4 °C 61 % 28 km/h 0.4 mm Moderate 16
28 Jul 27.9 °C 63 % 34 km/h 0.4 mm Moderate 17
29 Jul 30.2 °C 56 % 23 km/h 0.9 mm Moderate 11
30 Jul after 29.2 °C 64 % 22 km/h 2.6 mm Very low 4

Before and after, from space

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

Before · 14 Jul 2026
After · 5 Aug 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 20 July 2026 the air beside the fire reached 108 µg/m³ of PM2.5. That day averaged 73: 4.9 times the WHO daily guideline (15).

PM2.5 peak108 µg/m³
Days over the guideline14 days
PM10113 µg/m³
Optical depth1.29
192021222324252627282930311
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 · 47Every 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 Republic of the Congo ›

Frequently asked questions

How long did the Kellé fire last?
GWIS (Copernicus) dates it between 21 July 2026 and 29 July 2026: 9 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 3,143 hectares (31.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Kellé (3,164 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 31.7 °C, humidity dropped to 56 % and gusts hit 34 km/h. The fire danger index (FWI) reached 17, class Moderate.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of 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. 47 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 (Public Domain). 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.