Burned area
satellite only5,419ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 4 Mar 2025 – 6 Mar 2025
+− cross-check
No official record is matched to this page to compare it with.
AU · Australia · –
Exmouth fire, March 2025 Exmouth
Out · last detection 6 Mar 2025, 17:00 UTC
The fire started on 4 March 2025 in Exmouth, Australia, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,419 hectares from heat detections, spread across a single municipality.
Number 422 in Australia in 2025, of 478.
Use this data
Compare with…
Suggestions: Ashburton · 2018Ashburton · 2017Exmouth · 2022
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only3days
4 Mar 2025 to 6 Mar 2025: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 6 Mar 2025, 17:00 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only4 Mar 2025
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 4 Mar 2025
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only172
VIIRS detections at 375 m. Most intense hotspot: 143 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 4 Mar 2025 – 6 Mar 2025
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only2,614MW
Total radiative power on 6 March 2025; hotspots that day: 64.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 6 Mar 2025
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model52.3FWI · extreme
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 41.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 4 Mar 2025, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model41.6°C · 21% RH
High of 41.6 °C and minimum humidity of 21% on 4 March 2025; gusts of 47 km/h on 6 March 2025.
- Source
- weather model at the fire’s grid cell
- Date
- 4 Mar 2025 – 6 Mar 2025
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed GHSLPopulation and built-up area computed
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 5,419 ha
- Dates
- 4 Mar 2025 – 6 Mar 2025
- Name
- Exmouth
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/exmouth-2025-03?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire exmouth-2025-03.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-03-04 | 6 | 20 | 41.6 | 27.9 | 21 | 29.8 | 45.7 | 0 | 52.3 | extremo | 1 |
| 2025-03-05 | 102 | 1,652 | 38.6 | 29.9 | 32 | 24.7 | 42.1 | 0 | 43.3 | muy_alto | 1 |
| 2025-03-06 | 64 | 2,614 | 39.3 | 30.4 | 26 | 28.1 | 46.8 | 0 | 48 | muy_alto | 1 |
| 2025-03-07 | 0 | 0 | 37.8 | 30 | 31 | 28 | 40.7 | 0 | 48.3 | muy_alto | 0 |
| 2025-03-08 | 0 | 0 | 36.1 | 24 | 26 | 29.3 | 47.5 | 0 | 50.7 | extremo | 0 |
| 2025-03-09 | 0 | 0 | 33.1 | 22.5 | 36 | 29.3 | 46.1 | 0 | 44.4 | muy_alto | 0 |
| 2025-03-10 | 0 | 0 | 31.7 | 22.1 | 45 | 28.2 | 47.2 | 0 | 37 | alto | 0 |
| 2025-03-11 | 0 | 0 | 31.3 | 22.4 | 45 | 23.1 | 40 | 0 | 32.2 | alto | 0 |
| 2025-03-12 | 0 | 0 | 30.1 | 23.4 | 48 | 20.9 | 36.7 | 0 | 28.9 | alto | 0 |
| 2025-03-13 | 0 | 0 | 27.5 | 23 | 61 | 21.4 | 32.8 | 5.8 | 5.3 | bajo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 5,419ha
- GWIS perimeter (Copernicus)
- Duration
- 3days
- 4 Mar 2025 – 6 Mar 2025
- Municipalities hit
- 1
- local government areas
- Started on
- 4 Mar
- 2025
- Heat detections
- 172
- in a single hotspot: 143 MW
- Danger at start
- 52
- Extreme · FWI index
- Average daily power
- 1.4GW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
4 Mar6 Mar
6 Mar 2025
How it evolved, day by day
4 Mar
5 Mar
6 Mar
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
42°high
47km/h · peak gust
21%lowest humidity
It had gone 41 days without rain (1 mm or more) when it started. Rain came after the fire: 5.8 mm on 13 Mar.
This area had burned before
8% of the perimeter overlaps earlier fires recorded since 2016: 434 ha in 2022.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Exmouth where it started5,434 ha reached on 4 Mar0.8 %
Burnt area inside each municipality, from crossing the GWIS 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.
People and buildings inside the perimeter
GHSL 2025Built-up area0.24 ha
Residents< 20
Inside the perimeter there were about 0.24 hectares of 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) |
|---|---|---|---|---|---|
| 4 Mar | 41.6 °C | 21 % | 46 km/h | 0.0 mm | Extreme 52 |
| 5 Mar | 38.6 °C | 32 % | 42 km/h | 0.0 mm | Very high 43 |
| 6 Mar | 39.3 °C | 26 % | 47 km/h | 0.0 mm | Very high 48 |
| 7 Mar after | 37.8 °C | 31 % | 41 km/h | 0.0 mm | Very high 48 |
| 8 Mar after | 36.1 °C | 26 % | 48 km/h | 0.0 mm | Extreme 51 |
| 9 Mar after | 33.1 °C | 36 % | 46 km/h | 0.0 mm | Very high 44 |
| 10 Mar after | 31.7 °C | 45 % | 47 km/h | 0.0 mm | High 37 |
| 11 Mar after | 31.3 °C | 45 % | 40 km/h | 0.0 mm | High 32 |
| 12 Mar after | 30.1 °C | 48 % | 37 km/h | 0.0 mm | High 29 |
| 13 Mar after | 27.5 °C | 61 % | 33 km/h | 5.8 mm | Low 5 |
Its twins: fires that started in the same weather
It started with an FWI of 52.3, a minimum humidity of 21% and 41 days without rain. Fires in the area that started in weather like this since 2017: 7.
FWI at the start
52.3
Minimum humidity
21 %
Days without rain
41
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Exmouth fire, March 2025
5,419 ha
3 days
FWI 52.3
Min. humidity 21 %
Ashburton fire, December 2018
8,368 ha
4 days
FWI 57.1
Min. humidity 18 %
206 km away, in 2018
First rain (1 mm or more) after it ended: 1.1 mm on 6 Jan.
Ashburton fire, December 2017
8,229 ha
4 days
FWI 54.2
Min. humidity 23 %
143 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Ashburton fire, December 2018
6,027 ha
6 days
FWI 61.3
Min. humidity 19 %
189 km away, in 2018
First rain (1 mm or more) after it ended: 1.5 mm on 6 Jan.
Carnarvon fire, December 2022
7,619 ha
4 days
FWI 48.8
Min. humidity 26 %
98 km away, in 2022
First rain (1 mm or more) after it ended: none in the following ten days.
Ashburton fire, August 2023
7,283 ha
7 days
FWI 50.8
Min. humidity 14 %
140 km away, in 2023
First rain (1 mm or more) after it ended: none in the following ten days.
What happened to them
Fires in the area that started in similar weather: 7. With fewer than 15 we give no figures: they would be more noise than signal.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
5.8 mmfirst rain
13 Mar7 days after it ended
47km/h · max. gust
It was considered over on 6 Mar, and on 13 Mar 5.8 mm fell. We do not know whether the rain or the firefighters put it out.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2017.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 25 Feb 2025
After · 13 Mar 2025
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 7 March 2025 the air beside the fire reached 237 µg/m³ of PM2.5. That day averaged 75: 5.0 times the WHO daily guideline (15).
PM2.5 peak237 µg/m³
Days over the guideline3 days
PM10273 µg/m³
Optical depth0.22
WHO 15
2 Mar4 Mar6 Mar8 Mar
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 · 172Every 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 time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Exmouth fire last?
- GWIS (Copernicus) dates it between 4 March 2025 and 6 March 2025: 3 days between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,419 hectares (54.2 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Exmouth (5,434 ha, 0.8 %).
- What was the weather like?
- During the fire the temperature reached 41.6 °C, humidity dropped to 21 % and gusts hit 47 km/h. The fire danger index (FWI) reached 52, class Extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Australia (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: 000 · 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 With cross-checks and a citable version
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: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 172 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 comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 ADM2 (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 from each country’s official figure.