Burned area
satellite only5,122ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 21 Feb 2025 – 6 Mar 2025
+− cross-check
No official record is matched to this page to compare it with.
MX · Mexico · –
Zirándaro fire, February 2025 Zirándaro
Out · last detection 6 Mar 2025, 08:20 UTC
The fire started on 21 February 2025 in Zirándaro, Mexico, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,122 hectares from heat detections, spread across a single municipality.
It is the 90th largest in Guerrero since 2016 (of 582 with a page). Number 30 in Mexico in 2025, of 163.
The power measured by the satellite is low (21.5 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
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 only14days
21 Feb 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, 08:20 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 only21 Feb 2025
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 21 Feb 2025
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only218
VIIRS detections at 375 m. Most intense hotspot: 22 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 21 Feb 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 only145MW
Total radiative power on 4 March 2025; hotspots that day: 33.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 4 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
model14.6FWI · moderate
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 0.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 21 Feb 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
model30.7°C · 21% RH
High of 30.7 °C and minimum humidity of 21% on 3 March 2025; gusts of 49 km/h on 3 March 2025.
- Source
- weather model at the fire’s grid cell
- Date
- 21 Feb 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 weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
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
- 5,122 ha
- Dates
- 21 Feb 2025 – 6 Mar 2025
- Name
- Zirándaro
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/zirandaro-2025-02?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 zirandaro-2025-02.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-02-21 | 0 | 0 | 30 | 16.5 | 35 | 11 | 37.1 | 0 | 14.6 | moderado | 1 |
| 2025-02-22 | 17 | 56 | 30.4 | 17.8 | 36 | 12.2 | 40.7 | 0 | 22 | alto | 1 |
| 2025-02-23 | 25 | 66 | 30.3 | 15.7 | 33 | 13.8 | 43.6 | 0 | 25.9 | alto | 1 |
| 2025-02-24 | 19 | 43 | 30.1 | 15.3 | 31 | 12.5 | 40.3 | 0 | 26.7 | alto | 1 |
| 2025-02-25 | 8 | 24 | 28 | 15.6 | 44 | 12.8 | 41 | 0 | 24.5 | alto | 1 |
| 2025-02-26 | 9 | 37 | 28.8 | 15.4 | 40 | 15.8 | 47.9 | 0 | 24.4 | alto | 1 |
| 2025-02-27 | 19 | 72 | 30 | 12.8 | 23 | 12.1 | 39.2 | 0 | 33 | alto | 1 |
| 2025-02-28 | 28 | 88 | 28.9 | 13.7 | 31 | 14.4 | 44.6 | 0 | 33.3 | alto | 1 |
| 2025-03-01 | 20 | 30 | 29.2 | 13.1 | 23 | 14.3 | 45.7 | 0 | 39.5 | muy_alto | 1 |
| 2025-03-02 | 17 | 53 | 29.5 | 13.2 | 26 | 15.4 | 46.1 | 0 | 38.3 | muy_alto | 1 |
| 2025-03-03 | 15 | 33 | 30.7 | 13.9 | 21 | 15 | 48.6 | 0 | 38.1 | muy_alto | 1 |
| 2025-03-04 | 33 | 145 | 29.7 | 14.7 | 23 | 14.1 | 43.6 | 0 | 40.1 | muy_alto | 1 |
| 2025-03-05 | 7 | 33 | 29.3 | 12.1 | 32 | 13.8 | 45.7 | 0 | 38.1 | muy_alto | 1 |
| 2025-03-06 | 1 | 0 | 28.9 | 13.8 | 29 | 13.1 | 44.3 | 0 | 36 | alto | 1 |
| 2025-03-07 | 0 | 0 | 30.7 | 12.7 | 22 | 15.5 | 48.6 | 0 | 39.2 | muy_alto | 0 |
| 2025-03-08 | 0 | 0 | 29.8 | 12.6 | 24 | 13.5 | 43.6 | 0 | 40.9 | muy_alto | 0 |
| 2025-03-09 | 0 | 0 | 28.5 | 13.3 | 38 | 14.6 | 46.4 | 0 | 34.8 | alto | 0 |
| 2025-03-10 | 0 | 0 | 28.1 | 13.5 | 42 | 13.7 | 44.6 | 0 | 30.8 | alto | 0 |
| 2025-03-11 | 0 | 0 | 28.2 | 14.4 | 39 | 14.1 | 44.6 | 0 | 31.4 | alto | 0 |
| 2025-03-12 | 0 | 0 | 29.5 | 13 | 23 | 14.1 | 46.4 | 0 | 37.4 | alto | 0 |
| 2025-03-13 | 0 | 0 | 28.6 | 14 | 26 | 15.7 | 49 | 0 | 41.4 | muy_alto | 0 |
| 2025-03-14 | 0 | 0 | 27.3 | 12.9 | 34 | 15.9 | 49.7 | 0 | 38.7 | muy_alto | 0 |
| 2025-03-15 | 0 | 0 | 27.3 | 12.7 | 39 | 13.9 | 45.7 | 0 | 32.1 | alto | 0 |
| 2025-03-16 | 0 | 0 | 27.2 | 12.5 | 41 | 13 | 40.3 | 0 | 31.2 | alto | 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
- 5,122ha
- GWIS perimeter (Copernicus)
- Duration
- 14days
- 21 Feb 2025 – 6 Mar 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 21 Feb
- 2025
- Heat detections
- 218
- in a single hotspot: 22 MW
- Danger at start
- 15
- Moderate · FWI index
- Average daily power
- 52MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
21 Feb6 Mar
6 Mar 2025
How it evolved, day by day
22 Feb
25 Feb
28 Feb
4 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
31°high
49km/h · peak gust
21%lowest humidity
It had gone 0 days without rain (1 mm or more) when it started.
This area had burned before
98% of the perimeter overlaps earlier fires recorded since 2016: 4,522 ha in 2016, 13 ha in 2017, 4,594 ha in 2019, 347 ha in 2020, 1,274 ha in 2022, 29 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 4,996 ha that had burned before.
- 4,594 ha Coahuayutla de José María Izazaga fire, May 2019 29,990 ha in total; the hectares shown are those it shares with this fire
- 4,447 ha Zirándaro fire, April 2016 7,728 ha in total; the hectares shown are those it shares with this fire
- 1,274 ha Coahuayutla de José María Izazaga fire, May 2022 29,133 ha in total; the hectares shown are those it shares with this fire
- 13 ha Coahuayutla de José María Izazaga fire, May 2017 7,287 ha in total; the hectares shown are those it shares with this fire
- 1 ha Coahuayutla de José María Izazaga fire, May 2024 20,888 ha in total; the hectares shown are those it shares with this fire
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
-
Zirándaro where it started5,149 ha reached on 22 Feb2.4 %
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 area< 0.1 ha
Residents< 20
Inside 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) |
|---|---|---|---|---|---|
| 21 Feb | 30.0 °C | 35 % | 37 km/h | 0.0 mm | Moderate 15 |
| 22 Feb | 30.4 °C | 36 % | 41 km/h | 0.0 mm | High 22 |
| 23 Feb | 30.3 °C | 33 % | 44 km/h | 0.0 mm | High 26 |
| 24 Feb | 30.1 °C | 31 % | 40 km/h | 0.0 mm | High 27 |
| 25 Feb | 28.0 °C | 44 % | 41 km/h | 0.0 mm | High 24 |
| 26 Feb | 28.8 °C | 40 % | 48 km/h | 0.0 mm | High 24 |
| 27 Feb | 30.0 °C | 23 % | 39 km/h | 0.0 mm | High 33 |
| 28 Feb | 28.9 °C | 31 % | 45 km/h | 0.0 mm | High 33 |
| 1 Mar | 29.2 °C | 23 % | 46 km/h | 0.0 mm | Very high 40 |
| 2 Mar | 29.5 °C | 26 % | 46 km/h | 0.0 mm | Very high 38 |
| 3 Mar | 30.7 °C | 21 % | 49 km/h | 0.0 mm | Very high 38 |
| 4 Mar | 29.7 °C | 23 % | 44 km/h | 0.0 mm | Very high 40 |
| 5 Mar | 29.3 °C | 32 % | 46 km/h | 0.0 mm | Very high 38 |
| 6 Mar | 28.9 °C | 29 % | 44 km/h | 0.0 mm | High 36 |
| 7 Mar after | 30.7 °C | 22 % | 49 km/h | 0.0 mm | Very high 39 |
| 8 Mar after | 29.8 °C | 24 % | 44 km/h | 0.0 mm | Very high 41 |
| 9 Mar after | 28.5 °C | 38 % | 46 km/h | 0.0 mm | High 35 |
| 10 Mar after | 28.1 °C | 42 % | 45 km/h | 0.0 mm | High 31 |
| 11 Mar after | 28.2 °C | 39 % | 45 km/h | 0.0 mm | High 31 |
| 12 Mar after | 29.5 °C | 23 % | 46 km/h | 0.0 mm | High 37 |
| 13 Mar after | 28.6 °C | 26 % | 49 km/h | 0.0 mm | Very high 41 |
| 14 Mar after | 27.3 °C | 34 % | 50 km/h | 0.0 mm | Very high 39 |
| 15 Mar after | 27.3 °C | 39 % | 46 km/h | 0.0 mm | High 32 |
| 16 Mar after | 27.2 °C | 41 % | 40 km/h | 0.0 mm | High 31 |
Its twins: fires that started in the same weather
It started with an FWI of 14.6, a minimum humidity of 35% and rain the day before. Fires in the area that started in weather like this since 2016: 22.
FWI at the start
14.6
Minimum humidity
35 %
Days without rain
0
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Zirándaro fire, February 2025
5,122 ha
14 days
FWI 14.6
Min. humidity 35 %
San Miguel Totolapan fire, April 2016
2,265 ha
9 days
FWI 15.7
Min. humidity 35 %
122 km away, in 2016
First rain (1 mm or more) after it ended: 1.0 mm on 7 May.
Coyuca de Catalán fire, May 2022
2,013 ha
13 days
FWI 17.0
Min. humidity 36 %
62 km away, in 2022
First rain (1 mm or more) after it ended: 1.0 mm on 28 May.
Tumbiscatío fire, May 2020
5,687 ha
10 days
FWI 13.5
Min. humidity 36 %
144 km away, in 2020
First rain (1 mm or more) after it ended: 1.4 mm on 23 May.
Zirándaro fire, April 2016
7,728 ha
16 days
FWI 20.5
Min. humidity 34 %
3 km away, in 2016
First rain (1 mm or more) after it ended: 1.2 mm on 12 May.
Coyuca de Catalán fire, April 2018
4,692 ha
7 days
FWI 14.8
Min. humidity 30 %
55 km away, in 2018
First rain (1 mm or more) after it ended: 10.4 mm on 2 May.
What happened to them
- 12 days
- median duration
- 3,142 ha
- median area
- 100 %
- went past 1,000 ha
- 2.0 mm
- rain at the end (median; 20 of 22 had it)
It was 1.6 times larger than the median of its twins and lasted 14 days, against 12 days.
Only 5 of its 22 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 2 of 22, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.0 mm.
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
—first rain
—no rain in ten days
49km/h · max. gust
It was considered over on 6 Mar, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 20 of 22, with a median of 2.0 mm.
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 2016.
- 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 · 14 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 23 February 2025 the air beside the fire reached 26 µg/m³ of PM2.5. That day averaged 17: 1.1 times the WHO daily guideline (15).
PM2.5 peak26 µg/m³
Days over the guideline1 day
PM1026 µg/m³
Optical depth0.65
WHO 15
19 Feb23 Feb27 Feb3 Mar7 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 · 218Every 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
- 29,133 haCoahuayutla de José María IzazagaMay 2022 · 28 days · 11 km away
- 29,990 haCoahuayutla de José María Izazaga4 May 2019 · 25 days · 12 km away
- 20,888 haCoahuayutla de José María IzazagaMay 2024 · 37 days · 18 km away
- 21,353 haZirándaroApril 2017 · 39 days · 20 km away
- 26,163 haCoyuca de Catalán16 April 2021 · 24 days · 23 km away
- 44,615 haCoahuayutla de José María IzazagaMay 2020 · 35 days · 27 km away
Frequently asked questions
- How long did the Zirándaro fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 21 February 2025 to 6 March 2025 (14 days). The perimeter dates it from 21 February 2025 to 5 March 2025.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,122 hectares (51.2 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Zirándaro (5,149 ha, 2.4 %).
- What was the weather like?
- During the fire the temperature reached 30.7 °C, humidity dropped to 21 % and gusts hit 49 km/h. The fire danger index (FWI) reached 40, class Very high.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mexico (geoBoundaries). It is not an official report.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 22. Their median duration was 12 days and their median area 3,142 ha; 100 % went past 1,000 ha. Only 5 of its 22 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 2 of 22, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.0 mm.
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: 911 · 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 adjusted with the VIIRS detections inside the perimeter, which said 21 February 2025 to 5 March 2025. 218 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 (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.