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Custonaci fire, 20 July 2025 San Vito Lo Capo, Custonaci, Castellammare del Golfo

Out · last detection 25 Jul 2025, 12:07 UTC

The fire started on 20 July 2025 in Custonaci, Italy, and satellites saw it burning for 7 days. Copernicus mapped a burnt perimeter of 5,542 hectares from satellite imagery, spread across 4 municipalities.

It is the largest fire in Trapani since 2016 (of 68 with a page). The largest in Italy in 2025, of 216.

Compare with…
Burnt area
5,542ha
Copernicus perimeter
Duration
7days
20 Jul 2025 – 26 Jul 2025
Municipalities hit
4
municipalities
Started on
20 Jul
2025
Heat detections
15
in a single hotspot: 83 MW
Danger at start
32
High · FWI index
Average daily power
74MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 20 Jul26 Jul
25 Jul 2025

How it evolved, day by day

20 Jul 2025 · 18 MW · 1 21 Jul 2025 · 19 MW · 11 25 Jul 2025 · 186 MW · 3
20 Jul 21 Jul 25 Jul

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

The weather it burned in

39°high
50km/h · peak gust
18%lowest humidity

It had gone 15 days without rain (1 mm or more) when it started.

This area had burned before

84% of the perimeter overlaps earlier fires recorded since 2016: 3,166 ha in 2017, 186 ha in 2019, 2,749 ha in 2020, 480 ha in 2021, 501 ha in 2022, 1,102 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 4,639 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.5% of the area of London (55 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. San Vito Lo Capo 4,814 inhabitants · 2.1 km from the centre
    2,665 ha
    44 %
  2. Custonaci 5,274 inhabitants · 3.9 km from the centre where it started
    2,041 ha reached on 20 Jul
    29 %
  3. Castellammare del Golfo 14,610 inhabitants · 8.7 km from the centre
    818 ha reached on 25 Jul
    6.4 %
  4. Buseto Palizzolo 2,761 inhabitants · 0.9 km from the centre
    16 ha
    0.2 %

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

  • Other natural land61 %
  • Sclerophyllous scrub26 %
  • Agricultural areas12 %
  • Coniferous forest1.1 %

Natura 2000 protected area affected: 89 %

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 2025
Built-up area4.7 ha
Residents≈ 80

Inside the perimeter there were about 4.7 hectares of built-up land and about 80 residents (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

Checked against the press

Checked on 29 September 2026

We checked this page against 4 sources published once the fire was out. This is what they add:

Also known as
Incendio di Monte Cofano · Incendi nel Trapanese · Incendio Custonaci-San Vito Lo Capo
According to the sources, several fires that ended up merging:
  • Buseto Palizzolo / Castellammare del Golfo / Custonaci / San Vito Lo Capo 20 July 2025 5,500 ha
  • Curve di Biro 25 July 2025
Official area reported: 5,500 ha (the satellite measured 5,542 ha)

Sources

Official figures are measured differently from satellite ones and sometimes cover only part of the fire.

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)
20 Jul 32.9 °C 41 % 49 km/h 0.0 mm High 32
21 Jul 36.6 °C 30 % 36 km/h 0.0 mm High 35
22 Jul 32.0 °C 36 % 43 km/h 0.0 mm High 37
23 Jul 35.7 °C 27 % 32 km/h 0.0 mm High 35
24 Jul 37.6 °C 21 % 36 km/h 0.0 mm Very high 41
25 Jul 39.2 °C 18 % 50 km/h 0.0 mm Extreme 54
26 Jul 31.7 °C 42 % 43 km/h 0.2 mm Very high 38
27 Jul after 28.9 °C 45 % 48 km/h 0.0 mm High 33
28 Jul after 27.8 °C 45 % 62 km/h 0.0 mm Very high 41
29 Jul after 26.7 °C 48 % 52 km/h 0.4 mm High 34
30 Jul after 27.5 °C 48 % 39 km/h 0.3 mm High 28
31 Jul after 27.7 °C 44 % 39 km/h 0.1 mm High 28
1 Aug after 30.2 °C 35 % 34 km/h 0.0 mm High 29
2 Aug after 29.9 °C 33 % 37 km/h 0.0 mm High 32
3 Aug after 29.8 °C 38 % 42 km/h 0.0 mm High 33
4 Aug after 27.6 °C 41 % 50 km/h 0.0 mm High 36
5 Aug after 28.3 °C 41 % 49 km/h 0.0 mm High 36

Before and after, from space

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

Before · 13 Jul 2025
After · 2 Aug 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 28 July 2025 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
PM1028 µg/m³
Optical depth0.70
181920212223242526272829
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 · 15Every 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 Italy ›

Frequently asked questions

How long did the Custonaci fire last?
Copernicus dates it between 20 July 2025 and 26 July 2025: 7 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 5,542 hectares (55.4 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 4 municipalities: San Vito Lo Capo (2,665 ha, 44 %); Custonaci (2,041 ha, 29 %); Castellammare del Golfo (818 ha, 6.4 %); Buseto Palizzolo (16 ha, 0.2 %).
Did the fire reach a town?
The fire came within 0.9 km of the centre of Buseto Palizzolo, the closest of the areas it touched. 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 39.2 °C, humidity dropped to 18 % and gusts hit 50 km/h. The fire danger index (FWI) reached 54, class Extreme.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Italy (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 · 1515 · 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.

RSS Changes to this page

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 · 1515.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 15 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Checked against news and agencies: 4 confirmed sources.
  • 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.

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 ADM4 (Creative Commons Attribution 3.0 License). 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.