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Guiré fire, November 2025 Guiré, Niamana

Out · last detection 26 Nov 2025, 02:11 UTC

The fire started on 22 November 2025 in Guiré, Mali, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,967 hectares from heat detections, spread across 2 municipalities.

It is the 8th largest in Koulikouro since 2016 (of 119 with a page). Number 52 in Mali in 2025, of 282.

The power measured by the satellite is low (12.1 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
4,967ha
GWIS perimeter (Copernicus)
Duration
5days
22 Nov 2025 – 26 Nov 2025
Municipalities hit
2
communes
Started on
22 Nov
2025
Heat detections
44
in a single hotspot: 12 MW
Danger at start
60
Extreme · FWI index
Energy released
80MW
sum of detected power

Where it burned

26 Nov 2025
HOTSPOTS BY DAY 22 Nov26 Nov

How it evolved, day by day

232526

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
45km/h · peak gust
11%lowest humidity

It had gone 54 days without rain (1 mm or more) when it started.

This area had burned before

59% of the perimeter overlaps earlier fires recorded since 2016: 1,173 ha in 2022, 1,972 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 2,951 ha that had burned before.

What happened to each town

  1. Guiré where it started
    4,896 ha reached on 23 Nov
    0.7 %
  2. Niamana
    97 ha reached on 26 Nov
    0.0 %

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)
22 Nov 37.5 °C 11 % 36 km/h 0.0 mm Extreme 60
23 Nov 34.3 °C 13 % 45 km/h 0.0 mm Extreme 67
24 Nov 32.0 °C 17 % 36 km/h 0.0 mm Extreme 55
25 Nov 31.8 °C 14 % 29 km/h 0.0 mm Very high 50
26 Nov 32.6 °C 17 % 23 km/h 0.0 mm Very high 46
27 Nov after 34.7 °C 15 % 26 km/h 0.0 mm Very high 47
28 Nov after 34.9 °C 13 % 26 km/h 0.0 mm Very high 48
29 Nov after 34.1 °C 18 % 27 km/h 0.0 mm Very high 49
30 Nov after 35.9 °C 17 % 28 km/h 0.0 mm Very high 50
1 Dec after 34.0 °C 16 % 36 km/h 0.0 mm Extreme 53
2 Dec after 30.5 °C 12 % 38 km/h 0.0 mm Extreme 56
3 Dec after 28.7 °C 16 % 35 km/h 0.0 mm Extreme 51
4 Dec after 31.3 °C 9 % 35 km/h 0.0 mm Extreme 52
5 Dec after 31.9 °C 10 % 38 km/h 0.0 mm Extreme 55
6 Dec after 32.7 °C 11 % 31 km/h 0.0 mm Extreme 51

Before and after, from space

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

Before · 15 Nov 2025
After · 3 Dec 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 25 November 2025 the air beside the fire reached 47 µg/m³ of PM2.5. That day averaged 40: 2.7 times the WHO daily guideline (15).

PM2.5 peak47 µg/m³
Days over the guideline8 days
PM10273 µg/m³
Optical depth0.32
20212223242526272829
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 · 44Every 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 Mali ›

Frequently asked questions

How long did the Guiré fire last?
GWIS (Copernicus) dates it between 22 November 2025 and 26 November 2025: 5 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 4,967 hectares (49.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Guiré (4,896 ha, 0.7 %); Niamana (97 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 37.5 °C, humidity dropped to 11 % and gusts hit 45 km/h. The fire danger index (FWI) reached 67, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mali (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 ADM3 (Creative Commons Attribution 4.0 International (CC BY 4.0)). 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.