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Farsala fire, September 2025 δημοτική ενότητα Φαρσάλων · Farsala

Out · last detection 10 Sept 2025, 12:27 UTC

The fire started on 10 September 2025 in Farsala, Greece, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 187 hectares from satellite imagery, spread across a single municipality.

It is the 13th largest in Thessaly since 2016 (of 18 with a page). Number 30 in Greece in 2025, of 43.

Burnt area
187ha
Copernicus perimeter
Duration
1day
10 Sept 2025 – 10 Sept 2025
Municipalities hit
1
municipalities
Started on
10 Sept
2025
Heat detections
5
in a single hotspot: 61 MW
Danger at start
25
High · FWI index
Energy released
186MW
sum of detected power

Where it burned

HOTSPOTS BY DAY 10 Sept10 Sept

How it evolved, day by day

10

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

The weather it burned in

32°high
28km/h · peak gust
36%lowest humidity

It had gone 4 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

  1. Farsala δημοτική ενότητα Φαρσάλων 10,582 inhabitants where it started
    188 ha reached on 10 Sept
    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

  • Agricultural areas66 %
  • Sclerophyllous scrub34 %

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.

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)
10 Sept 32.4 °C 36 % 28 km/h 0.0 mm High 25
11 Sept after 32.9 °C 30 % 19 km/h 0.0 mm High 26
12 Sept after 32.7 °C 33 % 28 km/h 0.0 mm High 27
13 Sept after 29.4 °C 47 % 37 km/h 0.7 mm Moderate 20
14 Sept after 28.3 °C 51 % 31 km/h 0.1 mm Moderate 18
15 Sept after 30.0 °C 44 % 27 km/h 0.0 mm Moderate 19
16 Sept after 30.6 °C 38 % 25 km/h 0.0 mm High 22
17 Sept after 31.2 °C 34 % 35 km/h 0.0 mm High 26
18 Sept after 26.6 °C 25 % 32 km/h 0.0 mm High 30
19 Sept after 25.4 °C 40 % 28 km/h 0.0 mm High 25
20 Sept after 27.3 °C 34 % 39 km/h 0.0 mm High 30

Before and after, from space

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

Before · 3 Sept 2025
After · 17 Sept 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 12 September 2025 the air beside the fire reached 24 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak24 µg/m³
Days over the guideline0 days
PM1039 µg/m³
Optical depth0.31
8910111213
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 · 5Every 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 Greece ›

Frequently asked questions

How long did the Farsala fire last?
Copernicus dates it between 10 September 2025 and 10 September 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 187 hectares (1.9 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Farsala (188 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 32.4 °C, humidity dropped to 36 % and gusts hit 28 km/h. The fire danger index (FWI) reached 25, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Greece (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 · 199

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
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 · 199.

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 (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). 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.