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Bona fire, February 2026 Bona, Sindian

Out · last detection 23 Feb 2026, 02:45 UTC

The fire started on 8 February 2026 in Bona, Senegal, and satellites saw it burning for 15 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 25,642 hectares from heat detections, spread across 2 municipalities.

It is the largest fire in Sédhiou since 2016 (of 86 with a page). Number 2 in Senegal in 2026, of 125.

Burnt area
25,642ha
GWIS perimeter (Copernicus)
Duration
15days
8 Feb 2026 – 22 Feb 2026
Municipalities hit
2
districts
Started on
8 Feb
2026
Heat detections
547
in a single hotspot: 94 MW
Danger at start
38
High · FWI index
Energy released
6.4GW
sum of detected power

Where it burned

23 Feb 2026
HOTSPOTS BY DAY 8 Feb22 Feb

How it evolved, day by day

891011121314151617181920212223

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

The weather it burned in

40°high
41km/h · peak gust
11%lowest humidity

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

This area had burned before

88% of the perimeter overlaps earlier fires recorded since 2016: 1,345 ha in 2016, 2,181 ha in 2017, 6,760 ha in 2018, 893 ha in 2019, 7,279 ha in 2020, 5,153 ha in 2021, 12,534 ha in 2022, 12,886 ha in 2023, 2,912 ha in 2024, 6,447 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 22,447 ha that had burned before.

What happened to each town

  1. Bona where it started
    21,900 ha reached on 8 Feb
    27 %
  2. 2,216 ha reached on 8 Feb
    1.5 %

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)
8 Feb 36.4 °C 27 % 34 km/h 0.0 mm High 38
9 Feb 38.0 °C 21 % 37 km/h 0.0 mm Very high 45
10 Feb 37.0 °C 19 % 34 km/h 0.0 mm Very high 44
11 Feb 37.5 °C 20 % 23 km/h 0.0 mm Very high 40
12 Feb 38.2 °C 21 % 27 km/h 0.0 mm Very high 42
13 Feb 39.7 °C 20 % 32 km/h 0.0 mm Very high 44
14 Feb 37.7 °C 22 % 29 km/h 0.0 mm Very high 43
15 Feb 37.7 °C 22 % 29 km/h 0.0 mm Very high 44
16 Feb 38.2 °C 23 % 41 km/h 0.0 mm Extreme 52
17 Feb 37.2 °C 16 % 36 km/h 0.0 mm Very high 49
18 Feb 38.3 °C 18 % 32 km/h 0.0 mm Very high 47
19 Feb 39.3 °C 17 % 27 km/h 0.0 mm Very high 44
20 Feb 39.8 °C 11 % 26 km/h 0.0 mm Very high 50
21 Feb 39.6 °C 15 % 22 km/h 0.0 mm Very high 49
22 Feb 40.3 °C 17 % 35 km/h 0.0 mm Extreme 56
23 Feb after 38.6 °C 17 % 38 km/h 0.0 mm Extreme 58
24 Feb after 37.5 °C 15 % 32 km/h 0.0 mm Extreme 54
25 Feb after 38.2 °C 17 % 24 km/h 0.0 mm Extreme 50
26 Feb after 37.1 °C 17 % 29 km/h 0.0 mm Extreme 52
27 Feb after 33.8 °C 23 % 30 km/h 0.0 mm Very high 47
28 Feb after 30.7 °C 29 % 34 km/h 0.0 mm Very high 42
1 Mar after 32.3 °C 23 % 33 km/h 0.0 mm Very high 42
2 Mar after 32.1 °C 26 % 36 km/h 0.0 mm Very high 43
3 Mar after 34.8 °C 20 % 37 km/h 0.0 mm Very high 47
4 Mar after 34.2 °C 24 % 36 km/h 0.0 mm Very high 46

Before and after, from space

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

Before · 1 Feb 2026
After · 1 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 17 February 2026 the air beside the fire reached 140 µg/m³ of PM2.5. That day averaged 109: 7.3 times the WHO daily guideline (15).

PM2.5 peak140 µg/m³
Days over the guideline19 days
PM10421 µg/m³
Optical depth0.94
678910111213141516171819202122232425
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 · 547Every 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 Senegal ›

Frequently asked questions

How long did the Bona fire last?
GWIS (Copernicus) dates it between 8 February 2026 and 22 February 2026: 15 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 25,642 hectares (256.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Bona (21,900 ha, 27 %); Sindian (2,216 ha, 1.5 %).
What was the weather like?
During the fire the temperature reached 40.3 °C, humidity dropped to 11 % and gusts hit 41 km/h. The fire danger index (FWI) reached 56, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Senegal (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.

Emergency number: 18

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 18.

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 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.