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Hammam Nbail fire, July 2026 Hammam Nbail, Boucheghouf

Out · last measured on 18 Sept 2026

The fire started on 12 July 2026 in Hammam Nbail, Algeria, and satellites saw it burning for 69 days. Copernicus mapped a burnt perimeter of 532 hectares from satellite imagery, spread across 2 municipalities.

It is the 11th largest in Guelma since 2016 (of 40 with a page). Number 82 in Algeria in 2026, of 197.

Compare with…

Suggestions: Djebala Khemissi · 2026Beni Salah · 2021Boucheghouf · 2017Medjez Sfa · 2022

We have the Copernicus perimeter for this fire, but not yet its hotspots: NASA publishes the yearly hotspot archive only once the year closes. The page picks it up automatically when it is available.

Burnt area
532ha
Copernicus perimeter
Duration
69days
12 Jul 2026 – 18 Sept 2026
Municipalities hit
2
communes
Started on
12 Jul
2026
Danger at start
54
Extreme · FWI index

Where it burned

The weather it burned in

45°high
52km/h · peak gust
11%lowest humidity

It had gone 18 days without rain (1 mm or more) when it started. Rain came after the fire: 15.6 mm on 19 Sept.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 0.3% of the area of London (5.3 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. Hammam Nbail where it started
    502 ha
    3.0 %
  2. Boucheghouf
    32 ha
    0.2 %

Burnt area inside each municipality, from crossing the official 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.

What burned

  • Agricultural areas96 %
  • Other natural land4.1 %

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)
12 Jul 41.8 °C 14 % 38 km/h 0.0 mm Extreme 54
13 Jul 41.9 °C 15 % 43 km/h 0.0 mm Extreme 56
14 Jul 43.3 °C 12 % 37 km/h 0.0 mm Extreme 57
15 Jul 42.8 °C 14 % 36 km/h 0.0 mm Extreme 55
16 Jul 43.6 °C 12 % 31 km/h 0.0 mm Extreme 54
17 Jul 44.2 °C 11 % 41 km/h 0.0 mm Extreme 59
18 Jul 43.1 °C 13 % 36 km/h 0.1 mm Extreme 58
19 Jul 44.1 °C 11 % 37 km/h 0.2 mm Extreme 56
20 Jul 42.8 °C 13 % 38 km/h 0.1 mm Extreme 56
21 Jul 44.6 °C 11 % 38 km/h 0.2 mm Extreme 59
22 Jul 41.9 °C 17 % 38 km/h 0.5 mm Extreme 57
23 Jul 41.6 °C 18 % 41 km/h 0.2 mm Extreme 58
24 Jul 37.4 °C 30 % 38 km/h 0.0 mm Very high 43
25 Jul 40.6 °C 22 % 40 km/h 0.0 mm Very high 47
26 Jul 34.9 °C 43 % 40 km/h 0.0 mm High 37
27 Jul 29.6 °C 54 % 37 km/h 1.4 mm Moderate 15
28 Jul 31.5 °C 40 % 35 km/h 0.0 mm High 26
29 Jul 34.0 °C 32 % 36 km/h 0.0 mm High 34
30 Jul 34.6 °C 34 % 40 km/h 0.0 mm High 34
31 Jul 35.8 °C 32 % 38 km/h 0.0 mm High 36
1 Aug 36.5 °C 29 % 36 km/h 0.0 mm High 38
2 Aug 38.1 °C 20 % 31 km/h 0.0 mm Very high 44
3 Aug 39.2 °C 19 % 32 km/h 0.0 mm Very high 46
4 Aug 40.2 °C 21 % 44 km/h 0.6 mm Very high 45
5 Aug 33.7 °C 38 % 37 km/h 0.0 mm High 37
6 Aug 33.2 °C 40 % 41 km/h 0.0 mm High 35
7 Aug 34.0 °C 39 % 38 km/h 0.0 mm High 35
8 Aug 34.7 °C 30 % 35 km/h 0.0 mm High 34
9 Aug 37.1 °C 22 % 35 km/h 0.0 mm Very high 41
10 Aug 37.6 °C 21 % 40 km/h 0.0 mm Very high 45
11 Aug 38.0 °C 21 % 37 km/h 0.0 mm Very high 45
12 Aug 38.6 °C 19 % 35 km/h 0.0 mm Very high 45
13 Aug 36.8 °C 28 % 35 km/h 0.0 mm Very high 43
14 Aug 34.6 °C 34 % 35 km/h 0.0 mm Very high 39
15 Aug 34.9 °C 38 % 34 km/h 1.6 mm Moderate 18
16 Aug 35.2 °C 32 % 33 km/h 0.0 mm High 31
17 Aug 36.5 °C 28 % 33 km/h 0.0 mm High 36
18 Aug 34.3 °C 34 % 36 km/h 0.0 mm High 38
19 Aug 34.9 °C 32 % 33 km/h 0.0 mm High 35
20 Aug 36.6 °C 27 % 36 km/h 0.0 mm Very high 39
21 Aug 37.2 °C 29 % 43 km/h 1.2 mm High 36
22 Aug 36.9 °C 35 % 41 km/h 0.7 mm High 31
23 Aug 40.8 °C 19 % 38 km/h 0.8 mm Very high 45
24 Aug 39.2 °C 22 % 27 km/h 0.3 mm Very high 40
25 Aug 38.0 °C 27 % 37 km/h 0.0 mm Very high 46
26 Aug 45.1 °C 11 % 45 km/h 0.0 mm Extreme 62
27 Aug 45.0 °C 11 % 37 km/h 0.0 mm Extreme 61
28 Aug 38.6 °C 16 % 34 km/h 0.5 mm Extreme 57
29 Aug 42.5 °C 16 % 52 km/h 0.0 mm Extreme 62
30 Aug 35.2 °C 47 % 39 km/h 0.1 mm High 32
31 Aug 35.5 °C 41 % 34 km/h 0.0 mm High 34
1 Sept 35.7 °C 35 % 28 km/h 1.1 mm High 25
2 Sept 36.5 °C 29 % 31 km/h 0.9 mm High 31
3 Sept 34.7 °C 31 % 36 km/h 0.0 mm High 35
4 Sept 31.8 °C 38 % 34 km/h 0.0 mm High 34
5 Sept 32.9 °C 37 % 35 km/h 0.0 mm High 35
6 Sept 34.3 °C 27 % 32 km/h 0.0 mm High 36
7 Sept 35.0 °C 22 % 37 km/h 0.0 mm Very high 41
8 Sept 34.3 °C 33 % 35 km/h 0.0 mm High 38
9 Sept 37.6 °C 21 % 34 km/h 0.4 mm Very high 42
10 Sept 31.2 °C 45 % 31 km/h 4.4 mm Low 10
11 Sept 28.1 °C 56 % 35 km/h 1.3 mm Low 10
12 Sept 23.1 °C 76 % 30 km/h 6.7 mm Very low 0
13 Sept 27.3 °C 47 % 30 km/h 0.3 mm Low 6
14 Sept 29.1 °C 37 % 32 km/h 0.0 mm Moderate 16
15 Sept 28.8 °C 40 % 28 km/h 0.0 mm Moderate 20
16 Sept 30.3 °C 40 % 37 km/h 0.0 mm High 23
17 Sept 30.3 °C 48 % 28 km/h 1.4 mm Moderate 13
18 Sept 30.8 °C 45 % 30 km/h 1.8 mm Low 10
19 Sept after 25.0 °C 68 % 21 km/h 15.6 mm Very low 0

Before and after, from space

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

Before · 5 Jul 2026
After · 25 Sept 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 11 July 2026 the air beside the fire reached 15 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak15 µg/m³
Days over the guideline0 days
PM1039 µg/m³
Optical depth0.45
101112131415
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)

Other fires nearby

All fires in Algeria ›

Frequently asked questions

How long did the Hammam Nbail fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 12 July 2026 to 18 September 2026 (69 days). The perimeter dates it from 12 July 2026 to 12 July 2026.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 532 hectares (5.3 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Hammam Nbail (502 ha, 3.0 %); Boucheghouf (32 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 45.1 °C, humidity dropped to 11 % and gusts hit 52 km/h. The fire danger index (FWI) reached 62, class 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 · Emergency number and official warnings ›

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.

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 14 · 1021.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 12 July 2026 to 12 July 2026. No 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.

How we build fire pages: methodology ›

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.