Burned area
satellite only5,710ha
Union of 3 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 5 Dec 2025 – 13 Dec 2025
+− cross-check
No official record is matched to this page to compare it with.
CM · Cameroon · –
Rey-Bouba fire, 5 December 2025 Rey-Bouba
Out · last detection 14 Dec 2025, 12:40 UTC
The fire started on 5 December 2025 in Rey-Bouba, Cameroon, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,710 hectares from heat detections, spread across a single municipality.
Number 12 in Cameroon in 2025, of 236.
GWIS near-real-time perimeter, from the layer that changed in August 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.
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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 only9days
5 Dec 2025 to 13 Dec 2025: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 14 Dec 2025, 12:40 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 only5 Dec 2025
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 5 Dec 2025
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
The worst day
satellite only726MW
Total radiative power on 13 December 2025; hotspots that day: 55.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 13 Dec 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
model36.9FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 36.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 5 Dec 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
model37.5°C · 20% RH
High of 37.5 °C and minimum humidity of 20% on 13 December 2025; gusts of 31 km/h on 13 December 2025.
- Source
- weather model at the fire’s grid cell
- Date
- 5 Dec 2025 – 13 Dec 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
-
logLast day with fire: 20 December 2025 → 13 December 2025.
-
logStart date: 28 November 2025 → 5 December 2025.
-
logLast day with fire: 13 December 2025 → 20 December 2025.
-
logStart date: 5 December 2025 → 28 November 2025.
-
· reconstructed GHSLPopulation and built-up area computed
Area logged each night
Move the slider to see which area the page published each day.
Versioned permanent link
https://worldfires.org/en/fire/rey-bouba-2025-12-3?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 rey-bouba-2025-12-3.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-05 | 15 | 201 | 37.3 | 18.9 | 26 | 9.8 | 20.2 | 0 | 36.9 | alto | 1 |
| 2025-12-06 | 1 | 2 | 36.5 | 21.6 | 23 | 8.7 | 23 | 0 | 36.3 | alto | 1 |
| 2025-12-07 | 0 | 0 | 34.7 | 19.2 | 21 | 7.6 | 20.9 | 0 | 35.8 | alto | 1 |
| 2025-12-08 | 2 | 12 | 33.9 | 19 | 22 | 8.9 | 22.7 | 0 | 37.3 | alto | 1 |
| 2025-12-09 | 10 | 65 | 33.5 | 17 | 20 | 8.9 | 25.2 | 0 | 37.6 | alto | 1 |
| 2025-12-10 | 21 | 321 | 34 | 18.6 | 22 | 8.7 | 19.8 | 0 | 37.8 | alto | 1 |
| 2025-12-11 | 0 | 0 | 34.3 | 18.3 | 22 | 7 | 20.2 | 0 | 36.6 | alto | 1 |
| 2025-12-12 | 27 | 318 | 36.1 | 18.4 | 19 | 8.8 | 18 | 0 | 38.5 | muy_alto | 1 |
| 2025-12-13 | 55 | 726 | 37.5 | 18.7 | 20 | 15.7 | 31 | 0 | 45.8 | muy_alto | 1 |
| 2025-12-14 | 2 | 15 | 37.1 | 19.3 | 18 | 16.4 | 35.3 | 0 | 47.3 | muy_alto | 0 |
| 2025-12-15 | 0 | 0 | 36.4 | 17.8 | 14 | 10.4 | 27.4 | 0 | 43.8 | muy_alto | 0 |
| 2025-12-16 | 0 | 0 | 34.4 | 17.8 | 16 | 9 | 22 | 0 | 42.7 | muy_alto | 0 |
| 2025-12-17 | 0 | 0 | 33.4 | 15.7 | 17 | 8.8 | 18 | 0 | 42.8 | muy_alto | 0 |
| 2025-12-18 | 0 | 0 | 34.6 | 15 | 19 | 9.2 | 17.6 | 0 | 43.5 | muy_alto | 0 |
| 2025-12-19 | 0 | 0 | 36.1 | 16.6 | 19 | 9 | 20.5 | 0 | 43.6 | muy_alto | 0 |
| 2025-12-20 | 0 | 0 | 35.8 | 17.2 | 21 | 8.3 | 18 | 0 | 42.3 | muy_alto | 0 |
| 2025-12-21 | 0 | 0 | 36.2 | 17.9 | 19 | 8.1 | 21.6 | 0 | 42.3 | muy_alto | 0 |
| 2025-12-22 | 0 | 0 | 34.8 | 17.3 | 18 | 8.5 | 20.2 | 0 | 43 | muy_alto | 0 |
| 2025-12-23 | 0 | 0 | 35.9 | 17 | 15 | 8.9 | 23.8 | 0 | 43.7 | muy_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
- 5,710ha
- GWIS perimeter (Copernicus)
- Duration
- 9days
- 5 Dec 2025 – 13 Dec 2025
- Municipalities hit
- 1
- communes
- Started on
- 5 Dec
- 2025
- Heat detections
- 133
- in a single hotspot: 0 MW
- Danger at start
- 37
- High · FWI index
- Average daily power
- 208MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
5 Dec13 Dec
14 Dec 2025
How it evolved, day by day
5 Dec
8 Dec
10 Dec
13 Dec
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
38°high
31km/h · peak gust
19%lowest humidity
It had gone 36 days without rain (1 mm or more) when it started.
This area had burned before
55% of the perimeter overlaps earlier fires recorded since 2016: 161 ha in 2016, 1,567 ha in 2019, 742 ha in 2020, 362 ha in 2021, 273 ha in 2022, 140 ha in 2023, 1,172 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 3,135 ha that had burned before.
- 852 ha Rey-Bouba fire, December 2019 6,454 ha in total; the hectares shown are those it shares with this fire
- 715 ha Rey-Bouba fire, December 2019 3,456 ha in total; the hectares shown are those it shares with this fire
- 609 ha Rey-Bouba fire, November 2024 2,539 ha in total; the hectares shown are those it shares with this fire
- 557 ha Rey-Bouba fire, December 2020 1,046 ha in total; the hectares shown are those it shares with this fire
- 362 ha Rey-Bouba fire, December 2021 4,421 ha in total; the hectares shown are those it shares with this fire
- 299 ha Rey-Bouba fire, January 2024 5,258 ha in total; the hectares shown are those it shares with this fire
- 273 ha Rey-Bouba fire, November 2022 3,031 ha in total; the hectares shown are those it shares with this fire
- 264 ha Rey-Bouba fire, December 2024 1,733 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
-
Rey-Bouba where it started5,846 ha0.7 %
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) |
|---|---|---|---|---|---|
| 5 Dec | 37.3 °C | 26 % | 20 km/h | 0.0 mm | High 37 |
| 6 Dec | 36.5 °C | 23 % | 23 km/h | 0.0 mm | High 36 |
| 7 Dec | 34.7 °C | 21 % | 21 km/h | 0.0 mm | High 36 |
| 8 Dec | 33.9 °C | 22 % | 23 km/h | 0.0 mm | High 37 |
| 9 Dec | 33.5 °C | 20 % | 25 km/h | 0.0 mm | High 38 |
| 10 Dec | 34.0 °C | 22 % | 20 km/h | 0.0 mm | High 38 |
| 11 Dec | 34.3 °C | 22 % | 20 km/h | 0.0 mm | High 37 |
| 12 Dec | 36.1 °C | 19 % | 18 km/h | 0.0 mm | Very high 38 |
| 13 Dec | 37.5 °C | 20 % | 31 km/h | 0.0 mm | Very high 46 |
| 14 Dec after | 37.1 °C | 18 % | 35 km/h | 0.0 mm | Very high 47 |
| 15 Dec after | 36.4 °C | 14 % | 27 km/h | 0.0 mm | Very high 44 |
| 16 Dec after | 34.4 °C | 16 % | 22 km/h | 0.0 mm | Very high 43 |
| 17 Dec after | 33.4 °C | 17 % | 18 km/h | 0.0 mm | Very high 43 |
| 18 Dec after | 34.6 °C | 19 % | 18 km/h | 0.0 mm | Very high 44 |
| 19 Dec after | 36.1 °C | 19 % | 20 km/h | 0.0 mm | Very high 44 |
| 20 Dec after | 35.8 °C | 21 % | 18 km/h | 0.0 mm | Very high 42 |
| 21 Dec after | 36.2 °C | 19 % | 22 km/h | 0.0 mm | Very high 42 |
| 22 Dec after | 34.8 °C | 18 % | 20 km/h | 0.0 mm | Very high 43 |
| 23 Dec after | 35.9 °C | 15 % | 24 km/h | 0.0 mm | Very high 44 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 28 Nov 2025
After · 20 Dec 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 12 December 2025 the air beside the fire reached 70 µg/m³ of PM2.5. That day averaged 59: 3.9 times the WHO daily guideline (15).
PM2.5 peak70 µg/m³
Days over the guideline14 days
PM10266 µg/m³
Optical depth0.53
WHO 15
3 Dec6 Dec9 Dec12 Dec15 Dec
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 · 0Every 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
- 5,258 haRey-Bouba24 January 2024 · 7 days · 12 km away
- 6,454 haRey-Bouba17 December 2019 · 7 days · 13 km away
- 5,113 haRey-Bouba5 January 2020 · 4 days · 24 km away
- 8,850 haTcholliré6 December 2025 · 31 days · 31 km away
- 4,908 haRey-Bouba1 March 2024 · 7 days · 35 km away
- 5,333 haMayo-Dallah11 February 2026 · 9 days · 40 km away
Frequently asked questions
- How long did the Rey-Bouba fire last?
- GWIS (Copernicus) dates it between 5 December 2025 and 13 December 2025: 9 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 5,710 hectares (57.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Rey-Bouba (5,846 ha, 0.7 %).
- What was the weather like?
- During the fire the temperature reached 37.5 °C, humidity dropped to 19 % and gusts hit 31 km/h. The fire danger index (FWI) reached 46, class Very high.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Cameroon (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 · 4 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 20 December 2025 → 13 December 2025.
- Start date: 28 November 2025 → 5 December 2025.
- Last day with fire: 13 December 2025 → 20 December 2025.
- Start date: 5 December 2025 → 28 November 2025.
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; 3 polygons grouped in this page.
- Dates from the perimeter: the VIIRS detections inside it did not change them. No 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 ADM3 (Open Data Commons Open Database License 1.0). 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.