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Déou fire, 23 October 2025 Déou, Tin-Akoff, Oursi

Out · last detection 1 Nov 2025, 12:47 UTC

The fire started on 23 October 2025 in Déou, Burkina Faso, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 26,456 hectares from heat detections, spread across 3 municipalities.

It is the 2th largest in Liptako since 2016 (of 224 with a page). Number 6 in Burkina Faso in 2025, of 609.

Compare with…

Suggestions: Déou · 2024Oursi · 2024Déou · 2023Tin-Akoff · 2024

Burnt area
26,456ha
GWIS perimeter (Copernicus)
Duration
10days
23 Oct 2025 – 1 Nov 2025
Municipalities hit
3
communes
Started on
23 Oct
2025
Heat detections
483
in a single hotspot: 72 MW
Danger at start
57
Extreme · FWI index
Average daily power
381MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 Oct1 Nov
1 Nov 2025

How it evolved, day by day

23 Oct 2025 · 31 MW · 2 24 Oct 2025 · 1,139 MW · 107 25 Oct 2025 · 453 MW · 61 26 Oct 2025 · 815 MW · 97 27 Oct 2025 · 189 MW · 38 28 Oct 2025 · 609 MW · 84 29 Oct 2025 · 402 MW · 59 30 Oct 2025 · 108 MW · 21 31 Oct 2025 · 2 MW · 2 1 Nov 2025 · 59 MW · 12
23 Oct 24 Oct 25 Oct 27 Oct 29 Oct 31 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

41°high
30km/h · peak gust
4%lowest humidity

It had gone 25 days without rain (1 mm or more) when it started.

This area had burned before

8% of the perimeter overlaps earlier fires recorded since 2016: 2,130 ha in 2024.

How big is it?

10 km
It burned the equivalent of 17% of the area of London (265 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. Déou where it started
    17,897 ha reached on 23 Oct
    8.7 %
  2. Tin-Akoff
    6,363 ha reached on 27 Oct
    2.6 %
  3. Oursi
    2,381 ha reached on 25 Oct
    2.4 %

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 area2.0 ha
Residents≈ 550

Inside the perimeter there were about 2.0 hectares of built-up land and about 550 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)
23 Oct 41.4 °C 9 % 26 km/h 0.0 mm Extreme 57
24 Oct 40.1 °C 10 % 20 km/h 0.0 mm Extreme 56
25 Oct 40.9 °C 5 % 25 km/h 0.0 mm Extreme 56
26 Oct 40.3 °C 13 % 30 km/h 0.0 mm Extreme 61
27 Oct 40.0 °C 7 % 26 km/h 0.0 mm Extreme 55
28 Oct 40.7 °C 5 % 25 km/h 0.0 mm Extreme 57
29 Oct 40.1 °C 10 % 24 km/h 0.0 mm Extreme 56
30 Oct 39.7 °C 7 % 24 km/h 0.0 mm Extreme 56
31 Oct 39.7 °C 9 % 23 km/h 0.0 mm Extreme 56
1 Nov 39.3 °C 4 % 26 km/h 0.0 mm Extreme 63
2 Nov after 39.4 °C 5 % 45 km/h 0.0 mm Very extreme 80
3 Nov after 38.5 °C 7 % 34 km/h 0.0 mm Extreme 67
4 Nov after 38.3 °C 12 % 27 km/h 0.0 mm Extreme 56
5 Nov after 38.1 °C 7 % 26 km/h 0.0 mm Extreme 57
6 Nov after 39.2 °C 8 % 24 km/h 0.0 mm Extreme 56
7 Nov after 39.2 °C 13 % 24 km/h 0.0 mm Extreme 56
8 Nov after 37.3 °C 18 % 27 km/h 0.0 mm Very high 49
9 Nov after 38.8 °C 10 % 27 km/h 0.0 mm Extreme 54
10 Nov after 38.2 °C 8 % 28 km/h 0.0 mm Extreme 56
11 Nov after 38.5 °C 6 % 27 km/h 0.0 mm Extreme 58

Before and after, from space

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

Before · 16 Oct 2025
After · 8 Nov 2025

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 27 October 2025 the air beside the fire reached 77 µg/m³ of PM2.5. That day averaged 46: 3.1 times the WHO daily guideline (15).

PM2.5 peak77 µg/m³
Days over the guideline10 days
PM10124 µg/m³
Optical depth0.46
21222324252627282930311234
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 · 483Every 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 Burkina Faso ›

Frequently asked questions

How long did the Déou fire last?
GWIS (Copernicus) dates it between 23 October 2025 and 1 November 2025: 10 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 26,456 hectares (264.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Déou (17,897 ha, 8.7 %); Tin-Akoff (6,363 ha, 2.6 %); Oursi (2,381 ha, 2.4 %).
What was the weather like?
During the fire the temperature reached 41.4 °C, humidity dropped to 4 % and gusts hit 30 km/h. The fire danger index (FWI) reached 63, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Burkina Faso (OCHA COD-AB). 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. 483 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 OCHA COD-AB (Institut Geographique Burkina (IGB)) (Creative Commons Attribution for Intergovernmental Organisations (CC BY-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.