Avión fire, August 2025 Avión
The fire started on 25 August 2025 in Avión, Spain, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 302 hectares from satellite imagery, spread across a single municipality.
It is the 58th largest in Ourense since 2016 (of 118 with a page). Number 85 in Spain in 2025, of 158.
- Burnt area
- 302ha
- Copernicus perimeter
- Duration
- 3days
- 25 Aug 2025 – 27 Aug 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 25 Aug
- 2025
- Heat detections
- 31
- in a single hotspot: 137 MW
- Danger at start
- 21
- High · FWI index
- Energy released
- 1.1GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 35 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 28 Aug.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
302 ha reached on 25 Aug2.5 %
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
- Other natural land99 %
- Agricultural areas0.7 %
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 Aug | 25.2 °C | 55 % | 32 km/h | 0.0 mm | High 21 |
| 26 Aug | 23.6 °C | 54 % | 36 km/h | 0.0 mm | Moderate 21 |
| 27 Aug | 18.6 °C | 61 % | 38 km/h | 0.5 mm | Moderate 19 |
| 28 Aug after | 18.1 °C | 55 % | 42 km/h | 1.4 mm | Low 11 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 27 August 2025 the air beside the fire reached 44 µg/m³ of PM2.5. That day averaged 20: 1.3 times the WHO daily guideline (15).
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 · 31Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 3,096 haCarballeda de AviaAugust 2025 · 5 days · 6 km away
- 8,722 haPazos de BorbénOctober 2017 · 1 day · 22 km away
- 2,146 haArbo10 August 2016 · 2 days · 25 km away
- 3,333 haAs NevesOctober 2017 · 1 day · 27 km away
- 1,731 haSan Cristovo de CeaOctober 2017 · 3 days · 33 km away
- 3,893 haMonção Longos ValesOctober 2017 · 2 days · 36 km away
Frequently asked questions
- How long did the Avión fire last?
- Copernicus dates it between 25 August 2025 and 27 August 2025: 3 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 302 hectares (3.0 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Avión (302 ha, 2.5 %).
- Did the fire reach a town?
- The closest fire to a town centre came within 3.9 km of Avión. 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 25.2 °C, humidity dropped to 54 % and gusts hit 38 km/h. The fire danger index (FWI) reached 21, 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
Satellite cross-check
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
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.