Casteltermini fire, August 2026 Casteltermini
The fire started on 4 August 2026 in Casteltermini, Italy, and satellites saw it burning for 26 days. Copernicus mapped a burnt perimeter of 151 hectares from satellite imagery, spread across a single municipality.
It is the 184th largest in Agrigento since 2016 (of 289 with a page). Number 147 in Italy in 2026, of 231.
The power measured by the satellite is low (19.4 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…
- Burnt area
- 151ha
- Copernicus perimeter
- Duration
- ≈ 26days
- 4 Aug 2026 – 29 Aug 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 4 Aug
- 2026
- Heat detections
- 4
- in a single hotspot: 19 MW
- Danger at start
- 30
- High · FWI index
- Average daily power
- 16MW
- 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 one day without rain (1 mm or more) when it started.
This area had burned before
94% of the perimeter overlaps earlier fires recorded since 2016: 7 ha in 2016, 67 ha in 2019, 63 ha in 2021, 101 ha in 2022, 72 ha in 2023, 92 ha in 2024, 91 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 142 ha that had burned before.
- 101 ha Casteltermini fire, August 2022 159 ha in total; the hectares shown are those it shares with this fire
- 92 ha Casteltermini fire, August 2024 181 ha in total; the hectares shown are those it shares with this fire
- 47 ha Casteltermini fire, August 2019 149 ha in total; the hectares shown are those it shares with this fire
- 7 ha Casteltermini fire, August 2016 120 ha in total; the hectares shown are those it shares with this fire
- 2 ha Casteltermini fire, September 2025 271 ha in total; the hectares shown are those it shares with this fire
- 1 ha Casteltermini fire, September 2023 235 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
151 ha reached on 22 Aug1.5 %
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 land53 %
- Agricultural areas47 %
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) |
|---|---|---|---|---|---|
| 4 Aug | 36.6 °C | 37 % | 29 km/h | 0.0 mm | High 30 |
| 5 Aug | 35.4 °C | 31 % | 37 km/h | 0.0 mm | High 35 |
| 6 Aug | 35.4 °C | 35 % | 27 km/h | 1.4 mm | High 22 |
| 7 Aug | 36.9 °C | 34 % | 32 km/h | 0.0 mm | High 30 |
| 8 Aug | 37.5 °C | 32 % | 23 km/h | 0.3 mm | High 31 |
| 9 Aug | 36.3 °C | 40 % | 29 km/h | 0.9 mm | High 26 |
| 10 Aug | 36.2 °C | 41 % | 22 km/h | 0.0 mm | High 25 |
| 11 Aug | 37.1 °C | 35 % | 26 km/h | 0.0 mm | High 28 |
| 12 Aug | 37.8 °C | 29 % | 24 km/h | 0.0 mm | High 32 |
| 13 Aug | 35.5 °C | 36 % | 29 km/h | 4.1 mm | Low 9 |
| 14 Aug | 34.8 °C | 37 % | 20 km/h | 0.1 mm | Moderate 21 |
| 15 Aug | 34.5 °C | 43 % | 29 km/h | 2.1 mm | Moderate 14 |
| 16 Aug | 33.6 °C | 44 % | 28 km/h | 0.0 mm | Moderate 20 |
| 17 Aug | 34.9 °C | 37 % | 33 km/h | 0.6 mm | High 26 |
| 18 Aug | 31.3 °C | 49 % | 36 km/h | 0.9 mm | Moderate 20 |
| 19 Aug | 33.8 °C | 41 % | 32 km/h | 0.0 mm | High 26 |
| 20 Aug | 34.1 °C | 49 % | 36 km/h | 0.0 mm | High 27 |
| 21 Aug | 34.4 °C | 38 % | 40 km/h | 0.0 mm | High 29 |
| 22 Aug | 35.7 °C | 45 % | 38 km/h | 0.0 mm | High 29 |
| 23 Aug | 36.9 °C | 46 % | 28 km/h | 0.0 mm | High 26 |
| 24 Aug | 36.6 °C | 39 % | 32 km/h | 0.0 mm | High 29 |
| 25 Aug | 35.3 °C | 38 % | 41 km/h | 0.0 mm | High 31 |
| 26 Aug | 37.9 °C | 33 % | 28 km/h | 0.0 mm | High 30 |
| 27 Aug | 38.9 °C | 32 % | 28 km/h | 0.1 mm | High 32 |
| 28 Aug | 38.9 °C | 28 % | 33 km/h | 0.0 mm | Very high 39 |
| 29 Aug | 38.1 °C | 27 % | 45 km/h | 0.0 mm | Very high 46 |
| 30 Aug after | 37.0 °C | 34 % | 38 km/h | 0.0 mm | Very high 41 |
| 31 Aug after | 35.6 °C | 37 % | 35 km/h | 0.0 mm | High 35 |
| 1 Sept after | 34.3 °C | 37 % | 30 km/h | 0.0 mm | High 34 |
| 2 Sept after | 35.4 °C | 26 % | 30 km/h | 0.0 mm | High 34 |
| 3 Sept after | 34.8 °C | 33 % | 30 km/h | 0.0 mm | High 36 |
| 4 Sept after | 33.9 °C | 35 % | 27 km/h | 0.0 mm | High 32 |
| 5 Sept after | 34.3 °C | 40 % | 31 km/h | 0.0 mm | High 34 |
| 6 Sept after | 35.8 °C | 39 % | 27 km/h | 0.0 mm | High 32 |
| 7 Sept after | 35.3 °C | 37 % | 31 km/h | 0.0 mm | High 34 |
| 8 Sept after | 34.3 °C | 29 % | 35 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.
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 3 August 2026 the air beside the fire reached 42 µg/m³ of PM2.5. That day averaged 22: 1.4 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 · 4Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 2,154 haCastronovo di Sicilia19 July 2026 · 4 days · 12 km away
- 6,516 haCastronovo di Sicilia20 July 2026 · 5 days · 15 km away
- 2,265 haBivonaJuly 2026 · 2 days · 23 km away
- 2,265 haCampofelice di FitaliaJuly 2026 · 2 days · 30 km away
- 2,862 haAliminusaJuly 2023 · 3 days · 38 km away
- 2,999 haResuttano21 July 2026 · 3 days · 39 km away
Frequently asked questions
- How long did the Casteltermini fire last?
- The official perimeter only gives the start date (4 August 2026). The end comes from the heat detections inside the perimeter: it burned until 29 August 2026 (26 days from 4 August 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 151 hectares (1.5 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Casteltermini (151 ha, 1.5 %).
- Did the fire reach a town?
- The fire started in Casteltermini and reached its centre: the point marking it was inside the burnt area or less than 500 metres from it. That does not mean houses burned.
- What was the weather like?
- During the fire the temperature reached 38.9 °C, humidity dropped to 27 % and gusts hit 45 km/h. The fire danger index (FWI) reached 46, class Very high.
- 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.
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. 4 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.
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.