How long did the Congosto fire last?

Copernicus dates it between 25 June 2026 and 25 June 2026: 1 day between the first and last image with fire.

How much area did it burn?

The perimeter Copernicus measured from satellite imagery is 559 hectares (5.6 km²). Official national figures may differ.

Which municipalities burned?

The fire entered 3 municipalities: Congosto (387 ha, 10 %); Bembibre (152 ha, 2.4 %); Toreno (20 ha, 0.2 %).

Did the fire reach a town?

The closest fire to a town centre came within 1.3 km of Congosto. 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 22.9 °C, humidity dropped to 49 % and gusts hit 53 km/h. The fire danger index (FWI) reached 9, class Low.

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.

ES · Spain · 2026-06-25 → 2026-06-25

Congosto fire, June 2026 Congosto, Bembibre, Toreno

Out · last detection 26 Jun 2026, 02:34 UTC

The fire started on 25 June 2026 in Congosto, Spain, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 559 hectares from satellite imagery, spread across 3 municipalities.

It is the 27th largest in León since 2016 (of 86 with a page). Number 41 in Spain in 2026, of 195.

The power measured by the satellite is low (25.2 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: 559ha; Copernicus perimeter
Duration: 1day; 25 Jun 2026 – 25 Jun 2026
Municipalities hit: 3; municipalities
Started on: 25 Jun; 2026
Heat detections: 67; in a single hotspot: 25 MW
Danger at start: 9; Low · FWI index
Energy released: 618MW; sum of detected power

Play back 26 Jun 2026

HOTSPOTS BY DAY 25 Jun25 Jun

How it evolved, day by day

2526

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

The weather it burned in

23°high

53km/h · peak gust

49%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started.

This area had burned before

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

What happened to each town

Congosto 1,418 inhabitants · 1.3 km from the town where it started

387 ha reached on 25 Jun

10 %
Bembibre 8,041 inhabitants · 5.8 km from the town

152 ha reached on 25 Jun

2.4 %
Toreno 2,833 inhabitants · 4.7 km from the town

20 ha reached on 25 Jun

0.2 %

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

Coniferous forest82 %
Broadleaved forest12 %
Scrub and transitional woodland6.6 %

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

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)
25 Jun	22.9 °C	49 %	53 km/h	1.8 mm	Low 9
26 Jun after	25.3 °C	33 %	37 km/h	0.0 mm	Moderate 17
27 Jun after	25.4 °C	41 %	44 km/h	0.9 mm	Moderate 13
28 Jun after	21.8 °C	49 %	34 km/h	0.0 mm	Moderate 14
29 Jun after	27.2 °C	34 %	30 km/h	0.0 mm	Moderate 18
30 Jun after	28.0 °C	29 %	29 km/h	0.0 mm	High 22
1 Jul after	26.3 °C	30 %	38 km/h	0.0 mm	High 25
2 Jul after	29.5 °C	23 %	42 km/h	0.0 mm	High 29
3 Jul after	32.0 °C	20 %	29 km/h	0.0 mm	High 30
4 Jul after	32.7 °C	13 %	28 km/h	0.0 mm	High 34
5 Jul after	33.7 °C	11 %	24 km/h	0.0 mm	Very high 39

Before and after, from space

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

↔

Before · 18 Jun 2026

After · 2 Jul 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 27 June 2026 the air beside the fire reached 76 µg/m³ of PM2.5. That day averaged 43: 2.8 times the WHO daily guideline (15).

PM2.5 peak76 µg/m³

Days over the guideline2 days

PM10114 µg/m³

Optical depth0.50

WHO 15

232425262728

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 · 67Every 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 Spain ›

Frequently asked questions

How long did the Congosto fire last?: Copernicus dates it between 25 June 2026 and 25 June 2026: 1 day between the first and last image with fire.
How much area did it burn?: The perimeter Copernicus measured from satellite imagery is 559 hectares (5.6 km²). Official national figures may differ.
Which municipalities burned?: The fire entered 3 municipalities: Congosto (387 ha, 10 %); Bembibre (152 ha, 2.4 %); Toreno (20 ha, 0.2 %).
Did the fire reach a town?: The closest fire to a town centre came within 1.3 km of Congosto. 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 22.9 °C, humidity dropped to 49 % and gusts hit 53 km/h. The fire danger index (FWI) reached 9, class Low.
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

MITECO · Incendios forestales ↗
Protección Civil ↗

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.

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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 112.

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.

Where it burned