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Souanké fire, 21 July 2026 Souanké

Out · last detection 25 Jul 2026, 13:01 UTC

The fire started on 21 July 2026 in Souanké, Congo - Brazzaville, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,566 hectares from heat detections, spread across a single municipality.

It is the 59th largest in Bouenza since 2016 (of 180 with a page). Number 129 in Congo - Brazzaville in 2026, of 360.

Burnt area
1,566ha
GWIS perimeter (Copernicus)
Duration
4days
21 Jul 2026 – 24 Jul 2026
Municipalities hit
1
districts
Started on
21 Jul
2026
Heat detections
21
in a single hotspot: 49 MW
Danger at start
18
Moderate · FWI index
Energy released
209MW
sum of detected power

Where it burned

25 Jul 2026
HOTSPOTS BY DAY 21 Jul24 Jul

How it evolved, day by day

21222325

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
24km/h · peak gust
54%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

48% of the perimeter overlaps earlier fires recorded since 2016: 754 ha in 2016.

What happened to each town

  1. Souanké where it started
    1,576 ha reached on 21 Jul
    1.3 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre 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) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
21 Jul 31.9 °C 55 % 20 km/h 0.0 mm Moderate 18
22 Jul 29.7 °C 59 % 24 km/h 0.0 mm Moderate 19
23 Jul 30.6 °C 54 % 20 km/h 0.0 mm Moderate 18
24 Jul 26.8 °C 65 % 19 km/h 0.0 mm Moderate 16
25 Jul after 27.0 °C 66 % 18 km/h 0.0 mm Moderate 16
26 Jul after 27.7 °C 60 % 22 km/h 0.0 mm Moderate 16
27 Jul after 25.3 °C 72 % 24 km/h 0.1 mm Moderate 14
28 Jul after 26.8 °C 64 % 31 km/h 0.0 mm Moderate 15
29 Jul after 28.4 °C 59 % 19 km/h 0.0 mm Moderate 16
30 Jul after 28.3 °C 64 % 20 km/h 0.1 mm Moderate 16
31 Jul after 30.2 °C 58 % 18 km/h 0.0 mm Moderate 17
1 Aug after 28.9 °C 61 % 29 km/h 0.0 mm Moderate 19
2 Aug after 25.4 °C 69 % 22 km/h 0.0 mm Moderate 15
3 Aug after 29.5 °C 59 % 19 km/h 0.0 mm Moderate 16

Before and after, from space

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

Before · 14 Jul 2026
After · 31 Jul 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 23 July 2026 the air beside the fire reached 102 µg/m³ of PM2.5. That day averaged 54: 3.6 times the WHO daily guideline (15).

PM2.5 peak102 µg/m³
Days over the guideline9 days
PM10106 µg/m³
Optical depth1.39
192021222324252627
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 · 21Every 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 Congo - Brazzaville ›

Frequently asked questions

How long did the Souanké fire last?
GWIS (Copernicus) dates it between 21 July 2026 and 24 July 2026: 4 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 1,566 hectares (15.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Souanké (1,576 ha, 1.3 %).
What was the weather like?
During the fire the temperature reached 31.9 °C, humidity dropped to 54 % and gusts hit 24 km/h. The fire danger index (FWI) reached 19, class Moderate.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Congo - Brazzaville (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

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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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.