Burned area
satellite only76,338ha
Union of 9 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 9 Jan 2026 – 1 Mar 2026
+− cross-check
No official record is matched to this page to compare it with.
KH · Cambodia · –
Chhaeb fire, 9 January 2026 Thala Barivat, Chhaeb
Out · last detection 1 Mar 2026, 06:54 UTC
The fire started on 9 January 2026 in Chhaeb, Cambodia, and satellites saw it burning for 52 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 76,338 hectares from heat detections, spread across 2 municipalities.
This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.
Other fire pages in the same area and on the same dates:
- 22,717 haSiem Pang26 January 2026 · 60 days
- 20,923 haChey Saen7 February 2026 · 17 days
- 15,389 haChhaeb4 February 2026 · 16 days
- 6,010 haThala Barivat8 February 2026 · 18 days
- 5,812 haSiem Pang20 January 2026 · 23 days
- 5,399 haChhaeb6 February 2026 · 15 days
- 4,741 haStueng TraengJanuary 2026 · 20 days
- 3,898 haThala Barivat3 February 2026 · 19 days
The largest in Cambodia in 2026, of 120.
GWIS near-real-time perimeter, from the layer that changed in October 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-27matches 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 only52days
9 Jan 2026 to 1 Mar 2026: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 1 Mar 2026, 06:54 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 only9 Jan 2026
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 9 Jan 2026
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only2,930
VIIRS detections at 375 m. Most intense hotspot: 109 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 9 Jan 2026 – 1 Mar 2026
+− 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 only2,353MW
Total radiative power on 9 February 2026; hotspots that day: 266.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 9 Feb 2026
+− 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
model21.4FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 17.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 9 Jan 2026, 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
model37.2°C · 26% RH
High of 37.2 °C and minimum humidity of 26% on 16 February 2026; gusts of 42 km/h on 17 February 2026.
- Source
- weather model at the fire’s grid cell
- Date
- 9 Jan 2026 – 1 Mar 2026
- 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.
Living inside
model≈ 600people
Estimated residents inside the perimeter and 2.2 ha of built-up area (100 m grid, epoch 2025).
- Source
- GHSL R2023A · JRC
- Date
- calculated on 24 October 2026
+− cross-check
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.
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
-
logLast day with fire: 23 February 2026 → 1 March 2026.
-
logStart date: 16 January 2026 → 9 January 2026.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 27 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
- 84,354 ha
- Dates
- 9 Jan 2026 – 1 Mar 2026
- Name
- Chhaeb
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/chhaeb-2026-01-2?v=2026-10-27A 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 chhaeb-2026-01-2.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-09 | 6 | 20 | 27.9 | 16 | 41 | 8.6 | 26.3 | 0 | 21.4 | alto | 1 |
| 2026-01-10 | 3 | 13 | 28.8 | 15.9 | 36 | 10.4 | 22 | 0 | 22.8 | alto | 1 |
| 2026-01-11 | 1 | 5 | 29.6 | 16.7 | 35 | 10.3 | 25.9 | 0 | 23.1 | alto | 1 |
| 2026-01-12 | 7 | 29 | 31 | 18.7 | 42 | 10 | 22 | 0 | 23.2 | alto | 1 |
| 2026-01-13 | 11 | 64 | 31.7 | 19.4 | 42 | 10 | 21.2 | 0 | 23.6 | alto | 1 |
| 2026-01-14 | 7 | 64 | 32.5 | 19.9 | 39 | 9.4 | 25.2 | 0 | 23.6 | alto | 1 |
| 2026-01-15 | 7 | 40 | 33.1 | 21.4 | 41 | 9.2 | 22.7 | 0 | 23.8 | alto | 1 |
| 2026-01-16 | 12 | 45 | 33.6 | 21.4 | 38 | 10 | 25.6 | 0 | 24.6 | alto | 1 |
| 2026-01-17 | 3 | 16 | 33.8 | 21 | 36 | 8.2 | 23.4 | 0 | 23.8 | alto | 1 |
| 2026-01-18 | 1 | 2 | 32.3 | 21.6 | 44 | 10.7 | 23.4 | 0.1 | 25.2 | alto | 1 |
| 2026-01-19 | 25 | 103 | 32.8 | 21.9 | 35 | 10.8 | 31.3 | 0 | 25.7 | alto | 1 |
| 2026-01-20 | 11 | 126 | 32.5 | 21 | 38 | 11.4 | 28.1 | 0 | 26.4 | alto | 1 |
| 2026-01-21 | 39 | 309 | 32 | 20.7 | 33 | 13.5 | 32.4 | 0 | 28.5 | alto | 1 |
| 2026-01-22 | 84 | 1,188 | 32 | 20.3 | 28 | 13 | 31.3 | 0 | 30.8 | alto | 1 |
| 2026-01-23 | 20 | 278 | 31.4 | 19.8 | 35 | 12.3 | 33.8 | 0 | 30.6 | alto | 1 |
| 2026-01-24 | 61 | 456 | 32.1 | 20.4 | 34 | 12.6 | 33.1 | 0 | 31.1 | alto | 1 |
| 2026-01-25 | 49 | 261 | 32.1 | 19.4 | 34 | 11.9 | 31 | 0 | 30.9 | alto | 1 |
| 2026-01-26 | 24 | 195 | 32.1 | 20 | 36 | 11.1 | 27.4 | 0 | 30.6 | alto | 1 |
| 2026-01-27 | 28 | 282 | 32.3 | 19.7 | 35 | 11.6 | 25.9 | 0 | 31.3 | alto | 1 |
| 2026-01-28 | 30 | 218 | 32.3 | 20.1 | 35 | 12.3 | 28.4 | 0 | 32.2 | alto | 1 |
| 2026-01-29 | 63 | 497 | 32.9 | 20.7 | 35 | 12 | 30.6 | 0 | 32.2 | alto | 1 |
| 2026-01-30 | 95 | 807 | 33.3 | 20.3 | 34 | 10.9 | 25.6 | 0 | 31.7 | alto | 1 |
| 2026-01-31 | 49 | 298 | 33.3 | 20.4 | 34 | 10.5 | 25.2 | 0 | 31.6 | alto | 1 |
| 2026-02-01 | 96 | 689 | 33 | 20.6 | 29 | 12.4 | 32 | 0 | 33.4 | alto | 1 |
| 2026-02-02 | 79 | 580 | 32.8 | 21 | 34 | 13.3 | 36.7 | 0 | 34.5 | alto | 1 |
| 2026-02-03 | 78 | 460 | 32.7 | 22.3 | 40 | 13.3 | 35.6 | 0 | 32 | alto | 1 |
| 2026-02-04 | 37 | 174 | 33.8 | 22.3 | 36 | 11.8 | 27.7 | 0 | 31.1 | alto | 1 |
| 2026-02-05 | 63 | 530 | 35.3 | 23 | 34 | 10 | 23.4 | 0 | 30 | alto | 1 |
| 2026-02-06 | 13 | 66 | 36 | 23.7 | 31 | 10.8 | 20.2 | 0 | 31.8 | alto | 1 |
| 2026-02-07 | 1 | 7 | 32.8 | 24.5 | 51 | 12.6 | 29.9 | 0.7 | 21.9 | alto | 1 |
| 2026-02-08 | 23 | 154 | 31.8 | 23.9 | 43 | 16.7 | 36.4 | 0 | 27.6 | alto | 1 |
| 2026-02-09 | 266 | 2,353 | 34.6 | 21.6 | 30 | 15 | 37.8 | 0 | 34.5 | alto | 1 |
| 2026-02-10 | 274 | 1,907 | 35 | 21.3 | 29 | 14.3 | 31.7 | 0 | 35.6 | alto | 1 |
| 2026-02-11 | 72 | 612 | 35 | 22.7 | 41 | 14 | 36.4 | 0 | 33.8 | alto | 1 |
| 2026-02-12 | 56 | 460 | 36 | 23.6 | 33 | 11.7 | 27 | 0 | 32.2 | alto | 1 |
| 2026-02-13 | 136 | 729 | 36.4 | 23.3 | 29 | 14.3 | 31 | 0 | 36.6 | alto | 1 |
| 2026-02-14 | 123 | 871 | 36.6 | 22.9 | 28 | 14.1 | 30.2 | 0 | 37.4 | alto | 1 |
| 2026-02-15 | 192 | 1,165 | 37.1 | 22.6 | 26 | 13.8 | 30.2 | 0 | 38.8 | muy_alto | 1 |
| 2026-02-16 | 139 | 731 | 37.2 | 24.1 | 26 | 13.8 | 31.3 | 0 | 39.1 | muy_alto | 1 |
| 2026-02-17 | 124 | 727 | 36.3 | 24.5 | 31 | 15.6 | 42.1 | 0 | 41 | muy_alto | 1 |
| 2026-02-18 | 92 | 363 | 36.9 | 24.1 | 30 | 16 | 38.9 | 0 | 41.7 | muy_alto | 1 |
| 2026-02-19 | 151 | 877 | 35.9 | 23.9 | 31 | 16.5 | 35.3 | 0 | 42.4 | muy_alto | 1 |
| 2026-02-20 | 142 | 674 | 36 | 23.2 | 30 | 14.2 | 32.4 | 0 | 40.4 | muy_alto | 1 |
| 2026-02-21 | 97 | 439 | 36.2 | 22.2 | 29 | 13.6 | 28.1 | 0 | 40.1 | muy_alto | 1 |
| 2026-02-22 | 22 | 74 | 37 | 23.4 | 33 | 10.8 | 24.5 | 0 | 37.4 | alto | 1 |
| 2026-02-23 | 3 | 3 | 35.1 | 26.5 | 45 | 11.5 | 30.6 | 0.1 | 31 | alto | 1 |
| 2026-02-24 | 6 | 37 | 36.3 | 25.6 | 39 | 10.4 | 25.9 | 0 | 30.3 | alto | 1 |
| 2026-02-25 | 0 | 0 | 36.1 | 26.6 | 38 | 10.4 | 28.1 | 0 | 30.5 | alto | 1 |
| 2026-02-26 | 3 | 26 | 35.5 | 25.8 | 40 | 10 | 26.3 | 0 | 30.3 | alto | 1 |
| 2026-02-27 | 0 | 0 | 27.5 | 23.6 | 74 | 7.5 | 18 | 13.8 | 0.2 | muy_bajo | 1 |
| 2026-02-28 | 3 | 22 | 34.9 | 22.8 | 48 | 7.8 | 21.2 | 0.7 | 6.4 | bajo | 1 |
| 2026-03-01 | 3 | 13 | 35.1 | 25.9 | 48 | 10.3 | 26.3 | 0.7 | 15.7 | moderado | 1 |
| 2026-03-02 | 0 | 0 | 34.9 | 25.6 | 51 | 8.7 | 25.2 | 4.2 | 4.9 | muy_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
- 76,338ha
- GWIS perimeter (Copernicus)
- Duration
- 52days
- 9 Jan 2026 – 1 Mar 2026
- Municipalities hit
- 2
- districts
- Started on
- 9 Jan
- 2026
- Heat detections
- 2,930
- in a single hotspot: 109 MW
- Danger at start
- 21
- High · FWI index
- Average daily power
- 401MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
9 Jan1 Mar
1 Mar 2026
How it evolved, day by day
9 Jan
19 Jan
29 Jan
9 Feb
18 Feb
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
37°high
42km/h · peak gust
26%lowest humidity
It had gone 17 days without rain (1 mm or more) when it started. Rain came after the fire: 4.2 mm on 2 Mar.
This area had burned before
82% of the perimeter overlaps earlier fires recorded since 2016: 12,236 ha in 2016, 21,143 ha in 2017, 2,409 ha in 2018, 11,528 ha in 2019, 15,393 ha in 2020, 35,028 ha in 2021, 25,106 ha in 2022, 6,833 ha in 2023, 26,822 ha in 2024, 13,771 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 62,384 ha that had burned before.
- 7,578 ha Thala Barivat fire, February 2017 10,550 ha in total; the hectares shown are those it shares with this fire
- 7,103 ha Thala Barivat fire, February 2022 7,376 ha in total; the hectares shown are those it shares with this fire
- 6,483 ha Chhaeb fire, February 2017 7,380 ha in total; the hectares shown are those it shares with this fire
- 5,401 ha Thala Barivat fire, February 2022 3,084 ha in total; the hectares shown are those it shares with this fire
- 5,325 ha Thala Barivat fire, February 2021 5,694 ha in total; the hectares shown are those it shares with this fire
- 5,267 ha Thala Barivat fire, February 2024 5,228 ha in total; the hectares shown are those it shares with this fire
- 5,034 ha Thala Barivat fire, February 2022 5,755 ha in total; the hectares shown are those it shares with this fire
- 4,757 ha Thala Barivat fire, January 2020 4,915 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
-
47,029 ha reached on 9 Jan18 %
-
Chhaeb where it started37,878 ha reached on 12 Jan15 %
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 area2.2 ha
Residents≈ 600
Inside the perimeter there were about 2.2 hectares of built-up land and about 600 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
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) |
|---|---|---|---|---|---|
| 9 Jan | 27.9 °C | 41 % | 26 km/h | 0.0 mm | High 21 |
| 10 Jan | 28.8 °C | 36 % | 22 km/h | 0.0 mm | High 23 |
| 11 Jan | 29.6 °C | 35 % | 26 km/h | 0.0 mm | High 23 |
| 12 Jan | 31.0 °C | 42 % | 22 km/h | 0.0 mm | High 23 |
| 13 Jan | 31.7 °C | 42 % | 21 km/h | 0.0 mm | High 24 |
| 14 Jan | 32.5 °C | 39 % | 25 km/h | 0.0 mm | High 24 |
| 15 Jan | 33.1 °C | 41 % | 23 km/h | 0.0 mm | High 24 |
| 16 Jan | 33.6 °C | 38 % | 26 km/h | 0.0 mm | High 25 |
| 17 Jan | 33.8 °C | 36 % | 23 km/h | 0.0 mm | High 24 |
| 18 Jan | 32.3 °C | 44 % | 23 km/h | 0.1 mm | High 25 |
| 19 Jan | 32.8 °C | 35 % | 31 km/h | 0.0 mm | High 26 |
| 20 Jan | 32.5 °C | 38 % | 28 km/h | 0.0 mm | High 26 |
| 21 Jan | 32.0 °C | 33 % | 32 km/h | 0.0 mm | High 28 |
| 22 Jan | 32.0 °C | 28 % | 31 km/h | 0.0 mm | High 31 |
| 23 Jan | 31.4 °C | 35 % | 34 km/h | 0.0 mm | High 31 |
| 24 Jan | 32.1 °C | 34 % | 33 km/h | 0.0 mm | High 31 |
| 25 Jan | 32.1 °C | 34 % | 31 km/h | 0.0 mm | High 31 |
| 26 Jan | 32.1 °C | 36 % | 27 km/h | 0.0 mm | High 31 |
| 27 Jan | 32.3 °C | 35 % | 26 km/h | 0.0 mm | High 31 |
| 28 Jan | 32.3 °C | 35 % | 28 km/h | 0.0 mm | High 32 |
| 29 Jan | 32.9 °C | 35 % | 31 km/h | 0.0 mm | High 32 |
| 30 Jan | 33.3 °C | 34 % | 26 km/h | 0.0 mm | High 32 |
| 31 Jan | 33.3 °C | 34 % | 25 km/h | 0.0 mm | High 32 |
| 1 Feb | 33.0 °C | 29 % | 32 km/h | 0.0 mm | High 33 |
| 2 Feb | 32.8 °C | 34 % | 37 km/h | 0.0 mm | High 34 |
| 3 Feb | 32.7 °C | 40 % | 36 km/h | 0.0 mm | High 32 |
| 4 Feb | 33.8 °C | 36 % | 28 km/h | 0.0 mm | High 31 |
| 5 Feb | 35.3 °C | 34 % | 23 km/h | 0.0 mm | High 30 |
| 6 Feb | 36.0 °C | 31 % | 20 km/h | 0.0 mm | High 32 |
| 7 Feb | 32.8 °C | 51 % | 30 km/h | 0.7 mm | High 22 |
| 8 Feb | 31.8 °C | 43 % | 36 km/h | 0.0 mm | High 28 |
| 9 Feb | 34.6 °C | 30 % | 38 km/h | 0.0 mm | High 34 |
| 10 Feb | 35.0 °C | 29 % | 32 km/h | 0.0 mm | High 36 |
| 11 Feb | 35.0 °C | 41 % | 36 km/h | 0.0 mm | High 34 |
| 12 Feb | 36.0 °C | 33 % | 27 km/h | 0.0 mm | High 32 |
| 13 Feb | 36.4 °C | 29 % | 31 km/h | 0.0 mm | High 37 |
| 14 Feb | 36.6 °C | 28 % | 30 km/h | 0.0 mm | High 37 |
| 15 Feb | 37.1 °C | 26 % | 30 km/h | 0.0 mm | Very high 39 |
| 16 Feb | 37.2 °C | 26 % | 31 km/h | 0.0 mm | Very high 39 |
| 17 Feb | 36.3 °C | 31 % | 42 km/h | 0.0 mm | Very high 41 |
| 18 Feb | 36.9 °C | 30 % | 39 km/h | 0.0 mm | Very high 42 |
| 19 Feb | 35.9 °C | 31 % | 35 km/h | 0.0 mm | Very high 42 |
| 20 Feb | 36.0 °C | 30 % | 32 km/h | 0.0 mm | Very high 40 |
| 21 Feb | 36.2 °C | 29 % | 28 km/h | 0.0 mm | Very high 40 |
| 22 Feb | 37.0 °C | 33 % | 24 km/h | 0.0 mm | High 37 |
| 23 Feb | 35.1 °C | 45 % | 31 km/h | 0.1 mm | High 31 |
| 24 Feb | 36.3 °C | 39 % | 26 km/h | 0.0 mm | High 30 |
| 25 Feb | 36.1 °C | 38 % | 28 km/h | 0.0 mm | High 30 |
| 26 Feb | 35.5 °C | 40 % | 26 km/h | 0.0 mm | High 30 |
| 27 Feb | 27.5 °C | 74 % | 18 km/h | 13.8 mm | Very low 0 |
| 28 Feb | 34.9 °C | 48 % | 21 km/h | 0.7 mm | Low 6 |
| 1 Mar | 35.1 °C | 48 % | 26 km/h | 0.7 mm | Moderate 16 |
| 2 Mar after | 34.9 °C | 51 % | 25 km/h | 4.2 mm | Very low 5 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 2 Jan 2026
After · 8 Mar 2026
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 10 February 2026 the air beside the fire reached 124 µg/m³ of PM2.5. That day averaged 50: 3.4 times the WHO daily guideline (15).
PM2.5 peak124 µg/m³
Days over the guideline38 days
PM10126 µg/m³
Optical depth1.26
WHO 15
14 Jan23 Jan1 Feb10 Feb19 Feb
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 · 2,930Every 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 Chhaeb fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 9 January 2026 to 1 March 2026 (52 days). The perimeter dates it from 16 January 2026 to 23 February 2026.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 76,338 hectares (763.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Thala Barivat (47,029 ha, 18 %); Chhaeb (37,878 ha, 15 %).
- What was the weather like?
- During the fire the temperature reached 37.2 °C, humidity dropped to 26 % and gusts hit 42 km/h. The fire danger index (FWI) reached 42, class Very high.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Cambodia (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.
Satellite cross-check
History of this page · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 23 February 2026 → 1 March 2026.
- Start date: 16 January 2026 → 9 January 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; 9 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 16 January 2026 to 23 February 2026. 2,930 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.