Buengas fire, 12 August 2026 Sanza Pombo, Buengas, Milunga
The fire started on 12 August 2026 in Buengas, Angola, and satellites saw it burning for 43 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 72,503 hectares from heat detections, spread across 3 municipalities.
It is the 3th largest in Uíge since 2016 (of 59 with a page). Number 11 in Angola in 2026, of 486.
Compare with…
- Burnt area
- 72,503ha
- GWIS perimeter (Copernicus)
- Duration
- 43days
- 12 Aug 2026 – 23 Sept 2026
- Municipalities hit
- 3
- municipalities
- Started on
- 12 Aug
- 2026
- Heat detections
- 2,540
- in a single hotspot: 266 MW
- Danger at start
- 30
- High · FWI index
- Average daily power
- 1.0GW
- 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 58 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 19 Sept.
This area had burned before
79% of the perimeter overlaps earlier fires recorded since 2016: 8,682 ha in 2016, 10,580 ha in 2017, 5,559 ha in 2018, 6,888 ha in 2019, 14,294 ha in 2020, 9,666 ha in 2021, 3,095 ha in 2022, 5,298 ha in 2023, 15,846 ha in 2024, 48,486 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 57,391 ha that had burned before.
- 29,796 ha Sanza Pombo fire, August 2025 70,510 ha in total; the hectares shown are those it shares with this fire
- 11,489 ha Sanza Pombo fire, September 2020 12,511 ha in total; the hectares shown are those it shares with this fire
- 5,288 ha Sanza Pombo fire, August 2021 5,389 ha in total; the hectares shown are those it shares with this fire
- 4,487 ha Sanza Pombo fire, August 2025 5,691 ha in total; the hectares shown are those it shares with this fire
- 2,673 ha Buengas fire, August 2025 11,914 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
-
53,551 ha reached on 19 Aug11 %
-
Buengas where it started19,420 ha reached on 12 Aug6.7 %
-
14 ha reached on 12 Aug0.0 %
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 2025Inside the perimeter there were about 57 hectares of built-up land and about 4,200 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) |
|---|---|---|---|---|---|
| 19 Aug | 28.8 °C | 33 % | 28 km/h | 0.0 mm | High 30 |
| 20 Aug | 29.4 °C | 30 % | 32 km/h | 0.0 mm | High 30 |
| 21 Aug | 26.8 °C | 45 % | 26 km/h | 0.0 mm | High 27 |
| 22 Aug | 28.4 °C | 43 % | 26 km/h | 0.0 mm | High 29 |
| 23 Aug | 29.1 °C | 45 % | 34 km/h | 0.0 mm | High 27 |
| 24 Aug | 26.2 °C | 61 % | 26 km/h | 0.8 mm | Moderate 16 |
| 25 Aug | 27.1 °C | 55 % | 25 km/h | 0.1 mm | Moderate 18 |
| 26 Aug | 29.4 °C | 49 % | 33 km/h | 0.1 mm | Moderate 20 |
| 27 Aug | 32.0 °C | 41 % | 33 km/h | 0.2 mm | High 27 |
| 28 Aug | 27.0 °C | 58 % | 27 km/h | 1.0 mm | Moderate 15 |
| 29 Aug | 26.2 °C | 63 % | 27 km/h | 1.1 mm | Low 11 |
| 30 Aug | 27.8 °C | 54 % | 32 km/h | 0.4 mm | Moderate 16 |
| 31 Aug | 26.1 °C | 62 % | 26 km/h | 0.0 mm | Moderate 16 |
| 1 Sept | 31.4 °C | 44 % | 22 km/h | 0.8 mm | Moderate 19 |
| 2 Sept | 31.5 °C | 45 % | 24 km/h | 3.9 mm | Low 7 |
| 3 Sept | 26.1 °C | 61 % | 33 km/h | 8.1 mm | Very low 2 |
| 4 Sept | 29.9 °C | 48 % | 29 km/h | 0.7 mm | Low 8 |
| 5 Sept | 29.6 °C | 45 % | 24 km/h | 2.3 mm | Low 6 |
| 6 Sept | 29.5 °C | 49 % | 21 km/h | 1.7 mm | Low 7 |
| 7 Sept | 30.1 °C | 48 % | 30 km/h | 0.9 mm | Low 10 |
| 8 Sept | 31.6 °C | 43 % | 30 km/h | 3.8 mm | Very low 5 |
| 9 Sept | 28.3 °C | 61 % | 31 km/h | 6.8 mm | Very low 1 |
| 10 Sept | 25.3 °C | 65 % | 29 km/h | 4.0 mm | Very low 1 |
| 11 Sept | 28.9 °C | 50 % | 32 km/h | 5.7 mm | Very low 1 |
| 12 Sept | 28.6 °C | 55 % | 21 km/h | 0.6 mm | Very low 3 |
| 13 Sept | 27.2 °C | 58 % | 29 km/h | 1.6 mm | Very low 3 |
| 14 Sept | 32.0 °C | 42 % | 22 km/h | 0.6 mm | Low 8 |
| 15 Sept | 28.8 °C | 52 % | 24 km/h | 2.3 mm | Very low 3 |
| 16 Sept | 29.7 °C | 49 % | 28 km/h | 3.8 mm | Very low 1 |
| 17 Sept | 28.4 °C | 56 % | 27 km/h | 0.6 mm | Very low 4 |
| 18 Sept | 27.3 °C | 55 % | 26 km/h | 0.0 mm | Low 7 |
| 19 Sept | 28.2 °C | 55 % | 23 km/h | 1.0 mm | Very low 5 |
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 29 August 2026 the air beside the fire reached 327 µg/m³ of PM2.5. That day averaged 156: 10 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 · 2,540Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 11,914 haBuengas29 August 2025 · 12 days · 9 km away
- 69,362 haBuengas15 August 2026 · 32 days · 24 km away
- 17,240 haMilunga31 August 2026 · 16 days · 26 km away
- 84,117 haBuengas29 August 2025 · 15 days · 30 km away
- 70,510 haSanza Pombo29 August 2025 · 19 days · 36 km away
- 12,511 haSanza PomboSeptember 2020 · 6 days · 36 km away
Frequently asked questions
- How long did the Buengas fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 12 August 2026 to 23 September 2026 (43 days). The perimeter dates it from 19 August 2026 to 16 September 2026.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 72,503 hectares (725.0 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 3 municipalities: Sanza Pombo (53,551 ha, 11 %); Buengas (19,420 ha, 6.7 %); Milunga (14 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 32.0 °C, humidity dropped to 30 % and gusts hit 34 km/h. The fire danger index (FWI) reached 30, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Angola (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 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: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 19 August 2026 to 16 September 2026. 2,540 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 (Public Domain). 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.