Sarrance fire, 25 February 2026 Issor, Sarrance, Asasp-Arros
The fire started on 25 February 2026 in Sarrance, France, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 405 hectares from satellite imagery, spread across 4 municipalities.
It is the 10th largest in Pyrénées-Atlantiques since 2016 (of 69 with a page). Number 23 in France in 2026, of 114.
The power measured by the satellite is low (8.4 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: Issor · 2025Issor · 2019Issor · 2023Sarrance · 2022
- Burnt area
- 405ha
- Copernicus perimeter
- Duration
- ≈ 3days
- 25 Feb 2026 – 27 Feb 2026
- Municipalities hit
- 4
- communes
- Started on
- 25 Feb
- 2026
- Heat detections
- 9
- in a single hotspot: 8 MW
- Danger at start
- 4
- Very low · FWI index
- Average daily power
- 18MW
- detected power per day, on average
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 5 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 27 Feb.
This area had burned before
88% of the perimeter overlaps earlier fires recorded since 2016: 239 ha in 2019, 58 ha in 2020, 109 ha in 2021, 150 ha in 2022, 217 ha in 2023, 72 ha in 2024, 272 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 356 ha that had burned before.
- 263 ha Issor fire, March 2025 307 ha in total; the hectares shown are those it shares with this fire
- 239 ha Issor fire, February 2019 284 ha in total; the hectares shown are those it shares with this fire
- 217 ha Issor fire, February 2023 229 ha in total; the hectares shown are those it shares with this fire
- 135 ha Sarrance fire, February 2022 154 ha in total; the hectares shown are those it shares with this fire
- 58 ha Asasp-Arros fire, February 2020 102 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Issor 256 inhabitants · 2.6 km from the centre222 ha reached on 26 Feb9.7 %
-
165 ha reached on 26 Feb3.5 %
-
16 ha0.7 %
-
Lourdios-Ichère 145 inhabitants · 1.7 km from the centre2 ha0.1 %
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
- Other natural land86 %
- Broadleaved forest11 %
- Agricultural areas3.7 %
Natura 2000 protected area affected: 100 %
- ZEPA Eth Thuron des Aureys FR7212007
- LIC Le Gave d'Aspe et le Lourdios (cours d'eau) FR7200792
- LIC Massif du Layens FR7200747
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.
People and buildings inside the perimeter
GHSL 2025Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.
Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu
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) |
|---|---|---|---|---|---|
| 26 Feb | 15.9 °C | 42 % | 30 km/h | 0.0 mm | Very low 4 |
| 27 Feb | 15.8 °C | 40 % | 38 km/h | 1.2 mm | Very low 1 |
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 28 February 2026 the air beside the fire reached 30 µg/m³ of PM2.5, but no daily average passed the WHO 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 · 9Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 860 haSainte-Engrâce14 February 2019 · 10 days · 20 km away
- 1,172 haLarrau24 February 2026 · 7 days · 26 km away
- 1,316 haAussurucqFebruary 2026 · 7 days · 31 km away
- 867 haMendive18 February 2025 · 8 days · 34 km away
- 1,120 haHostaFebruary 2019 · 14 days · 37 km away
- 2,916 haMendiveFebruary 2019 · 9 days · 38 km away
Frequently asked questions
- How long did the Sarrance fire last?
- The official perimeter only gives the start date (26 February 2026). The end comes from the heat detections inside the perimeter: it burned until 27 February 2026 (3 days from 25 February 2026), the last day with detections before more than 10 days in a row without any, so it is approximate.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 405 hectares (4.0 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 4 municipalities: Issor (222 ha, 9.7 %); Sarrance (165 ha, 3.5 %); Asasp-Arros (16 ha, 0.7 %); Lourdios-Ichère (2 ha, 0.1 %).
- Did the fire reach a town?
- The fire started in Sarrance and came within 1.7 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 15.9 °C, humidity dropped to 42 % and gusts hit 30 km/h. The fire danger index (FWI) reached 4, class Very low.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of France (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 · 18 · 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.
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
How we know this
- Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
- The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 9 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.
- Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
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 ADM5 (Open Data Commons Attribution License 1.0). 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.