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Cuemba fire, July 2024 Cuemba

Out · last detection 21 Aug 2024, 23:36 UTC

The fire started on 31 July 2024 in Cuemba, Angola, and satellites saw it burning for 22 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,313 hectares from heat detections, spread across a single municipality.

It is the 25th largest in Bié since 2016 (of 64 with a page). Number 44 in Angola in 2024, of 135.

Compare with…
Burnt area
8,313ha
GWIS perimeter (Copernicus)
Duration
22days
31 Jul 2024 – 21 Aug 2024
Municipalities hit
1
municipalities
Started on
31 Jul
2024
Heat detections
349
in a single hotspot: 109 MW
Danger at start
48
Very high · FWI index
Average daily power
217MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 31 Jul21 Aug
21 Aug 2024

How it evolved, day by day

31 Jul 2024 · 19 MW · 3 2 Aug 2024 · 7 MW · 2 3 Aug 2024 · 59 MW · 6 4 Aug 2024 · 24 MW · 5 5 Aug 2024 · 20 MW · 4 7 Aug 2024 · 109 MW · 6 8 Aug 2024 · 39 MW · 7 9 Aug 2024 · 509 MW · 53 10 Aug 2024 · 68 MW · 18 11 Aug 2024 · 2,265 MW · 116 12 Aug 2024 · 412 MW · 34 13 Aug 2024 · 131 MW · 13 14 Aug 2024 · 32 MW · 6 15 Aug 2024 · 19 MW · 4 16 Aug 2024 · 26 MW · 5 17 Aug 2024 · 12 MW · 4 18 Aug 2024 · 98 MW · 13 19 Aug 2024 · 317 MW · 30 20 Aug 2024 · 53 MW · 13 21 Aug 2024 · 113 MW · 7
31 Jul 4 Aug 8 Aug 11 Aug 14 Aug 17 Aug 20 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

33°high
45km/h · peak gust
8%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

43% of the perimeter overlaps earlier fires recorded since 2016: 1,175 ha in 2016, 345 ha in 2017, 2,461 ha in 2019, 517 ha in 2021, 1,241 ha in 2022, 667 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 3,538 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 5.3% of the area of London (83 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Cuemba where it started
    8,369 ha reached on 31 Jul
    0.6 %

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.

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)
7 Aug 32.5 °C 13 % 31 km/h 0.0 mm Very high 48
8 Aug 32.8 °C 8 % 37 km/h 0.0 mm Extreme 53
9 Aug 30.9 °C 13 % 45 km/h 0.0 mm Extreme 55
10 Aug 31.2 °C 13 % 35 km/h 0.0 mm Extreme 51
11 Aug 31.3 °C 10 % 35 km/h 0.0 mm Extreme 52
12 Aug 31.1 °C 12 % 42 km/h 0.0 mm Extreme 55
13 Aug 30.9 °C 13 % 39 km/h 0.0 mm Extreme 54
14 Aug 31.6 °C 12 % 38 km/h 0.0 mm Extreme 53
15 Aug 31.7 °C 12 % 45 km/h 0.0 mm Extreme 57
16 Aug 30.7 °C 14 % 54 km/h 0.0 mm Extreme 60
17 Aug 30.7 °C 13 % 48 km/h 0.0 mm Extreme 57
18 Aug 31.4 °C 11 % 41 km/h 0.0 mm Extreme 54
19 Aug 30.4 °C 12 % 45 km/h 0.0 mm Extreme 56
20 Aug 30.8 °C 12 % 42 km/h 0.0 mm Extreme 55
21 Aug 31.0 °C 14 % 44 km/h 0.0 mm Extreme 55
22 Aug after 30.6 °C 9 % 41 km/h 0.0 mm Extreme 53
23 Aug after 30.6 °C 12 % 44 km/h 0.0 mm Extreme 55
24 Aug after 30.7 °C 16 % 46 km/h 0.0 mm Extreme 54

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 24 Jul 2024
After · 28 Aug 2024

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 · Copernicus

On 17 August 2024 the air beside the fire reached 61 µg/m³ of PM2.5. That day averaged 43: 2.9 times the WHO daily guideline (15).

PM2.5 peak61 µg/m³
Days over the guideline13 days
PM1088 µg/m³
Optical depth0.96
567891011121314151617
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 · 349Every 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 timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Angola ›

Frequently asked questions

How long did the Cuemba fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 31 July 2024 to 21 August 2024 (22 days). The perimeter dates it from 7 August 2024 to 14 August 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,313 hectares (83.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Cuemba (8,369 ha, 0.6 %).
What was the weather like?
During the fire the temperature reached 32.8 °C, humidity dropped to 8 % and gusts hit 45 km/h. The fire danger index (FWI) reached 55, class Extreme.
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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 14 August 2024 → 21 August 2024.
  2. Start date: 7 August 2024 → 31 July 2024.

RSS Changes to this page

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.

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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 7 August 2024 to 14 August 2024. 349 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.

How we build fire pages: methodology ›

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.