How long did the Chetaibi fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 26 August 2026 to 28 August 2026 (3 days). The perimeter dates it from 26 August 2026 to 26 August 2026.

How much area did it burn?

The perimeter Copernicus measured from satellite imagery is 2,739 hectares (27.4 km²). Official national figures may differ.

Which municipalities burned?

The fire entered 3 municipalities: Chetaibi (2,185 ha, 17 %); Treat (454 ha, 3.6 %); El Marsa (104 ha, 0.9 %).

Did the fire reach a town?

The closest fire to a town centre came within 6.5 km of Treat. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.

What was the weather like?

During the fire the temperature reached 46.3 °C, humidity dropped to 9 % and gusts hit 40 km/h. The fire danger index (FWI) reached 78, class Very extreme.

Where does this data come from?

From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Algeria (geoBoundaries). It is not an official report.

DZ · Algeria · 2026-08-26 → 2026-08-28

Chetaibi fire, August 2026 شطايبي · Chetaibi, Treat, El Marsa

Out · last detection 28 Aug 2026, 01:15 UTC

The fire started on 26 August 2026 in Chetaibi, Algeria, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 2,739 hectares from satellite imagery, spread across 3 municipalities.

It is the 8th largest in Annaba since 2016 (of 50 with a page). Number 26 in Algeria in 2026, of 197.

Burnt area: 2,739ha; Copernicus perimeter
Duration: 3days; 26 Aug 2026 – 28 Aug 2026
Municipalities hit: 3; communes
Started on: 26 Aug; 2026
Heat detections: 72; in a single hotspot: 128 MW
Danger at start: 78; Very extreme · FWI index
Average daily power: 784MW; detected power per day, on average

Play back 28 Aug 2026

HOTSPOTS BY DAY 26 Aug28 Aug

How it evolved, day by day

26 Aug 27 Aug 28 Aug

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

The weather it burned in

46°high

40km/h · peak gust

9%lowest humidity

It had gone 53 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: 127 ha in 2017, 107 ha in 2021.

107 ha Chetaibi fire, August 2021 263 ha in total; the hectares shown are those it shares with this fire

What happened to each town

Chetaibi شطايبي 8,035 inhabitants · 7.1 km from the town where it started

2,185 ha reached on 26 Aug

17 %
Treat تريعات 6,076 inhabitants · 6.5 km from the town

454 ha reached on 26 Aug

3.6 %
El Marsa المرسى 5,995 inhabitants · 10.9 km from the town

104 ha

0.9 %

Burnt area inside each municipality, from crossing the official 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.

What burned

Mixed forest87 %
Broadleaved forest7.0 %
Other natural land3.7 %
Agricultural areas2.6 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

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)
26 Aug	46.3 °C	9 %	40 km/h	0.0 mm	Very extreme 78
27 Aug	45.8 °C	11 %	28 km/h	0.0 mm	Extreme 57
28 Aug	32.5 °C	29 %	37 km/h	0.0 mm	High 35
29 Aug after	41.9 °C	23 %	65 km/h	0.0 mm	Very extreme 71
30 Aug after	32.8 °C	60 %	38 km/h	0.1 mm	High 34
31 Aug after	33.3 °C	50 %	40 km/h	0.0 mm	High 33
1 Sept after	34.5 °C	50 %	34 km/h	0.0 mm	High 28
2 Sept after	35.7 °C	46 %	27 km/h	0.0 mm	High 29
3 Sept after	32.9 °C	44 %	36 km/h	0.0 mm	High 33
4 Sept after	31.1 °C	47 %	36 km/h	0.0 mm	High 35
5 Sept after	31.0 °C	42 %	34 km/h	0.0 mm	High 32

Before and after, from space

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

↔

Before · 19 Aug 2026

After · 4 Sept 2026

Before After

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 29 August 2026 the air beside the fire reached 140 µg/m³ of PM2.5. That day averaged 45: 3.0 times the WHO daily guideline (15).

PM2.5 peak140 µg/m³

Days over the guideline4 days

PM10211 µg/m³

Optical depth2.81

WHO 15

242526272829

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 · 72Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Algeria ›

Frequently asked questions

How long did the Chetaibi fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 26 August 2026 to 28 August 2026 (3 days). The perimeter dates it from 26 August 2026 to 26 August 2026.
How much area did it burn?: The perimeter Copernicus measured from satellite imagery is 2,739 hectares (27.4 km²). Official national figures may differ.
Which municipalities burned?: The fire entered 3 municipalities: Chetaibi (2,185 ha, 17 %); Treat (454 ha, 3.6 %); El Marsa (104 ha, 0.9 %).
Did the fire reach a town?: The closest fire to a town centre came within 6.5 km of Treat. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.
What was the weather like?: During the fire the temperature reached 46.3 °C, humidity dropped to 9 % and gusts hit 40 km/h. The fire danger index (FWI) reached 78, class Very extreme.
Where does this data come from?: From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Algeria (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: 14 · 1021

Satellite cross-check

NASA FIRMS ↗
EFFIS · Copernicus ↗

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?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

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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 14 · 1021.

Where this data comes from

The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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-ShareAlike 2.0). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.

Where it burned