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ES · Spain · –

Algeciras fire, September 2020 Algeciras

Out · last detection 9 Sept 2020, 02:01 UTC

The fire started on 8 September 2020 in Algeciras, Spain, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 188 hectares from satellite imagery, spread across a single municipality. According to EGIF (MITECO), it was detected on 8 September 2020 at 14:55 and declared extinguished on 15 September 2020.

It is the 11th largest in Cádiz since 2016 (of 16 with a page). Number 52 in Spain in 2020, of 89.

The power measured by the satellite is low (24.5 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
188ha
Copernicus perimeter
Duration
2days
8 Sept 2020 – 9 Sept 2020
Municipalities hit
1
municipalities
Started on
8 Sept
2020
Heat detections
4
in a single hotspot: 25 MW
Danger at start
37
High · FWI index
Average daily power
20MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 8 Sept9 Sept
9 Sept 2020

How it evolved, day by day

8 Sept 2020 · 38 MW · 2 9 Sept 2020 · 3 MW · 2
8 Sept 9 Sept

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

The weather it burned in

24°high
55km/h · peak gust
63%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 3.2 mm on 17 Sept.

This area had burned before

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

What happened to each town

  1. Algeciras 126,589 inhabitants · 6.2 km from the centre where it started
    188 ha reached on 8 Sept
    2.2 %

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

  • Broadleaved forest60 %
  • Scrub and transitional woodland21 %
  • Agricultural areas14 %
  • Sclerophyllous scrub4.8 %

Natura 2000 protected area affected: 100 %

Natura 2000 sites (European Environment Agency, 2024 release) crossed by the perimeter.

Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.

Official record

According to EGIF (MITECO), this fire started on 8 September 2020 and burned 171 ha (the satellite measured 188 ha).

MITECO, Estadística General de Incendios Forestales (EGIF). This is the agency’s consolidated statistic: it measures the area in its own way, which is why it can differ from the satellite.

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)

Started with Strong wind: 22 % of the area in Spain 60 days without rain: 5.1 % of the area in Spain

Day High Min. humidity Peak gust Rain Danger (FWI)
8 Sept 23.9 °C 73 % 55 km/h 0.3 mm High 37
9 Sept 24.1 °C 63 % 48 km/h 0.0 mm High 28
10 Sept after 24.8 °C 56 % 24 km/h 0.0 mm High 23
11 Sept after 24.9 °C 58 % 40 km/h 0.0 mm High 32
12 Sept after 25.8 °C 59 % 51 km/h 0.0 mm Very high 39
13 Sept after 25.1 °C 67 % 55 km/h 0.0 mm Very high 44
14 Sept after 24.1 °C 77 % 46 km/h 0.0 mm High 29
15 Sept after 25.2 °C 70 % 28 km/h 0.0 mm Moderate 20
16 Sept after 24.0 °C 74 % 32 km/h 0.0 mm Moderate 21
17 Sept after 24.6 °C 76 % 41 km/h 3.2 mm Moderate 19

Its twins: fires that started in the same weather

It started with an FWI of 37.1, a minimum humidity of 73% and more than two months without rain. Fires in the area that started in weather like this since 2016: 1.

FWI at the start 37.1
Minimum humidity 73 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

San Roque fire, July 2022
111 ha 1 day FWI 38.0 Min. humidity 56 % 24 km away, in 2022

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

What happened to them

Fires in the area that started in similar weather: 1. With fewer than 15 we give no figures: they would be more noise than signal.

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

3.2 mmfirst rain
17 Sept8 days after it ended
55km/h · max. gust

It was considered over on 9 Sept, and on 17 Sept 3.2 mm fell. We do not know whether the rain or the firefighters put it out.

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 · 1 Sept 2020
After · 16 Sept 2020

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 7 September 2020 the air beside the fire reached 12 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak12 µg/m³
Days over the guideline0 days
PM1022 µg/m³
6 Sept8 Sept10 Sept12 Sept
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 · 4Every 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 Spain

Frequently asked questions

How long did the Algeciras fire last?
Copernicus dates it between 8 September 2020 and 9 September 2020: 2 days between the first and last image with fire. According to EGIF (MITECO), it was detected on 8 September 2020 at 14:55 and declared extinguished on 15 September 2020.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 188 hectares (1.9 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Algeciras (188 ha, 2.2 %).
Did the fire reach a town?
The fire started in Algeciras and came within 6.2 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
What was the weather like?
During the fire the temperature reached 24.1 °C, humidity dropped to 63 % and gusts hit 55 km/h. The fire danger index (FWI) reached 37, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Spain (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: 112 · 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.

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 112.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 4 Suomi-NPP VIIRS detections on those dates.
  • Compared with EGIF (MITECO): 171 official ha against 188 ha of perimeter; they agree within 25%.
  • 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 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 slightly from each country’s official figure.