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DZ · Algeria ·

Hammam Righa fire, July 2025 حمام ريغة · Algeria

Out · last detection 11 Jul 2025, 13:10 UTC

The fire started on 11 July 2025 in Hammam Righa, Algeria, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 127 hectares from satellite imagery, spread across a single municipality.

It is the 53th largest in Tipaza since 2016 (of 59 with a page). Number 27 in Algeria in 2025, of 35.

The power measured by the satellite is low (21.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…

Suggestions: Messelmoun · 2020Merad · 2020Miliana · 2020Hammam Righa · 2019

Burnt area
127ha
Copernicus perimeter
Duration
1day
11 Jul 2025 – 11 Jul 2025
Municipalities hit
0
communes
Started on
11 Jul
2025
Heat detections
2
in a single hotspot: 22 MW
Danger at start
38
Very high · FWI index
Average daily power
43MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 11 Jul11 Jul

How it evolved, day by day

11 Jul 2025 · 43 MW · 2

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

The weather it burned in

30°high
35km/h · peak gust
32%lowest humidity

It had gone 47 days without rain (1 mm or more) when it started.

This area had burned before

100% of the perimeter overlaps earlier fires recorded since 2016: 96 ha in 2019, 128 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 128 ha that had burned before.

What burned

  • Mixed forest74 %
  • Other natural land26 %

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)
11 Jul 30.4 °C 32 % 35 km/h 0.1 mm Very high 38
12 Jul after 29.4 °C 36 % 33 km/h 0.1 mm High 38
13 Jul after 31.6 °C 34 % 36 km/h 0.0 mm High 30
14 Jul after 35.4 °C 17 % 40 km/h 0.4 mm Very high 49
15 Jul after 30.5 °C 29 % 40 km/h 0.0 mm Very high 40
16 Jul after 29.0 °C 39 % 35 km/h 0.0 mm High 38
17 Jul after 31.4 °C 21 % 31 km/h 0.0 mm Very high 41
18 Jul after 35.6 °C 16 % 33 km/h 0.0 mm Very high 40
19 Jul after 34.8 °C 13 % 40 km/h 0.0 mm Extreme 62
20 Jul after 34.3 °C 16 % 33 km/h 0.0 mm Extreme 51
21 Jul after 33.9 °C 20 % 35 km/h 0.0 mm Extreme 52

Its twins: fires that started in the same weather

It started with an FWI of 38.1, a minimum humidity of 32% and 47 days without rain. Fires in the area that started in weather like this since 2016: 23.

FWI at the start 38.1
Minimum humidity 32 %
Days without rain 47
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Messelmoun fire, July 2020
1,209 ha 5 days FWI 37.8 Min. humidity 32 % 26 km away, in 2020

First rain (1 mm or more) after it ended: none in the following ten days.

See its page Compare with this fire

What happened to them

4 days
median duration
239 ha
median area
9 %
went past 1,000 ha
2.8 mm
rain at the end (median; 3 of 23 had it)

It stayed below its twins: 127 ha against a median of 239 ha. It lasted 1 day, against 4 days.

In 20 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
35km/h · max. gust

It was considered over on 11 Jul, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 3 of 23, with a median of 2.8 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 4 Jul 2025
After · 18 Jul 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 14 July 2025 the air beside the fire reached 19 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline0 days
PM1075 µg/m³
Optical depth0.54
9 Jul11 Jul13 Jul
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 · 2Every 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 Algeria

Frequently asked questions

How long did the Hammam Righa fire last?
Copernicus dates it between 11 July 2025 and 11 July 2025: 1 day between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 127 hectares (1.3 km²). Official national figures may differ.
What was the weather like?
During the fire the temperature reached 30.4 °C, humidity dropped to 32 % and gusts hit 35 km/h. The fire danger index (FWI) reached 38, class Very high.
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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 23. Their median duration was 4 days and their median area 239 ha; 9 % went past 1,000 ha. In 20 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.

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 With cross-checks and a citable version

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 from the perimeter: the VIIRS detections inside it did not change them. 2 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.