Buengas fire, August 2023 Buengas
The fire started on 26 August 2023 in Buengas, Angola, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,487 hectares from heat detections, spread across a single municipality.
It is the 38th largest in Uíge since 2016 (of 59 with a page). Number 88 in Angola in 2023, of 158.
- Burnt area
- 6,487ha
- GWIS perimeter (Copernicus)
- Duration
- 11days
- 26 Aug 2023 – 5 Sept 2023
- Municipalities hit
- 1
- municipalities
- Started on
- 26 Aug
- 2023
- Heat detections
- 262
- in a single hotspot: 288 MW
- Danger at start
- 18
- Moderate · FWI index
- Energy released
- 5.2GW
- sum of detected power
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 3 days without rain (1 mm or more) when it started. Rain came after the fire: 1.6 mm on 8 Sept.
This area had burned before
82% of the perimeter overlaps earlier fires recorded since 2016: 4,587 ha in 2016, 506 ha in 2017, 227 ha in 2019, 680 ha in 2020, 1,117 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 5,323 ha that had burned before.
What happened to each town
-
Buengas where it started6,530 ha reached on 23 Aug2.3 %
Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
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) |
|---|---|---|---|---|---|
| 26 Aug | 30.6 °C | 47 % | 26 km/h | 0.9 mm | Moderate 18 |
| 27 Aug | 32.9 °C | 32 % | 24 km/h | 0.0 mm | High 30 |
| 28 Aug | 28.7 °C | 51 % | 28 km/h | 0.3 mm | High 25 |
| 29 Aug | 29.7 °C | 46 % | 28 km/h | 0.6 mm | High 24 |
| 30 Aug | 31.1 °C | 38 % | 28 km/h | 0.1 mm | High 28 |
| 31 Aug | 29.2 °C | 43 % | 30 km/h | 0.1 mm | High 28 |
| 1 Sept | 32.6 °C | 31 % | 25 km/h | 0.0 mm | High 32 |
| 2 Sept | 30.0 °C | 44 % | 26 km/h | 0.2 mm | High 29 |
| 3 Sept | 27.9 °C | 54 % | 28 km/h | 0.7 mm | Moderate 20 |
| 4 Sept | 29.2 °C | 49 % | 34 km/h | 0.7 mm | Moderate 19 |
| 5 Sept | 26.7 °C | 51 % | 37 km/h | 0.1 mm | High 22 |
| 6 Sept after | 29.1 °C | 47 % | 27 km/h | 0.3 mm | High 22 |
| 7 Sept after | 29.3 °C | 49 % | 28 km/h | 0.4 mm | Moderate 21 |
| 8 Sept after | 30.4 °C | 47 % | 27 km/h | 1.6 mm | Moderate 14 |
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.
Detections table · 262Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Buengas fire last?
- GWIS (Copernicus) dates it between 26 August 2023 and 5 September 2023: 11 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 6,487 hectares (64.9 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Buengas (6,530 ha, 2.3 %).
- What was the weather like?
- During the fire the temperature reached 32.9 °C, humidity dropped to 31 % and gusts hit 37 km/h. The fire danger index (FWI) reached 32, 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
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
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.