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Cacolo fire, 6 August 2026 Cacolo, Quirima

Out · last detection 17 Aug 2026, 12:27 UTC

The fire started on 6 August 2026 in Cacolo, Angola, and satellites saw it burning for 13 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,695 hectares from heat detections, spread across 2 municipalities.

It is the 171th largest in Lunda Sul since 2016 (of 240 with a page). Number 385 in Angola in 2026, of 486.

Compare with…
Burnt area
5,695ha
GWIS perimeter (Copernicus)
Duration
13days
6 Aug 2026 – 18 Aug 2026
Municipalities hit
2
municipalities
Started on
6 Aug
2026
Heat detections
156
in a single hotspot: 188 MW
Danger at start
42
Very high · FWI index
Average daily power
108MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 6 Aug18 Aug
17 Aug 2026

How it evolved, day by day

6 Aug 2026 · 48 MW · 2 9 Aug 2026 · 78 MW · 9 10 Aug 2026 · 6 MW · 1 11 Aug 2026 · 179 MW · 17 12 Aug 2026 · 127 MW · 12 13 Aug 2026 · 503 MW · 33 14 Aug 2026 · 5 MW · 4 15 Aug 2026 · 11 MW · 3 16 Aug 2026 · 80 MW · 15 17 Aug 2026 · 45 MW · 7
6 Aug 10 Aug 12 Aug 13 Aug 14 Aug 16 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

34°high
44km/h · peak gust
16%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 4 Sept.

This area had burned before

99% of the perimeter overlaps earlier fires recorded since 2016: 998 ha in 2016, 4,083 ha in 2017, 1,649 ha in 2018, 4,674 ha in 2019, 267 ha in 2020, 3,040 ha in 2021, 2,777 ha in 2022, 2,321 ha in 2023, 1,657 ha in 2024, 1,535 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 5,623 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.6% of the area of London (57 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. Cacolo where it started
    5,728 ha reached on 6 Aug
    0.5 %
  2. 2 ha
    0.0 %

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 2025
Built-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)
6 Aug 31.6 °C 19 % 32 km/h 0.0 mm Very high 42
7 Aug 31.5 °C 18 % 36 km/h 0.0 mm Very high 43
8 Aug 31.4 °C 22 % 32 km/h 0.0 mm Very high 42
9 Aug 31.6 °C 20 % 25 km/h 0.0 mm Very high 42
10 Aug 32.1 °C 19 % 19 km/h 0.0 mm Very high 41
11 Aug 31.3 °C 21 % 28 km/h 0.0 mm Very high 43
12 Aug 31.9 °C 17 % 39 km/h 0.0 mm Very high 46
13 Aug 31.0 °C 29 % 39 km/h 0.0 mm Very high 42
14 Aug 31.0 °C 34 % 44 km/h 0.3 mm Very high 40
15 Aug 31.3 °C 31 % 42 km/h 0.0 mm Very high 39
16 Aug 30.6 °C 23 % 42 km/h 0.0 mm Very high 40
17 Aug 31.0 °C 22 % 39 km/h 0.0 mm Very high 40
18 Aug 31.9 °C 16 % 37 km/h 0.0 mm Very high 44
19 Aug after 31.8 °C 19 % 37 km/h 0.0 mm Very high 44
20 Aug after 31.4 °C 20 % 38 km/h 0.0 mm Very high 45
21 Aug after 31.8 °C 23 % 27 km/h 0.0 mm Very high 43
22 Aug after 32.7 °C 25 % 30 km/h 0.0 mm Very high 42
23 Aug after 33.8 °C 21 % 36 km/h 0.0 mm Very high 44
24 Aug after 33.3 °C 24 % 44 km/h 0.0 mm Very high 48
25 Aug after 33.3 °C 24 % 36 km/h 0.0 mm Very high 45
26 Aug after 32.0 °C 28 % 35 km/h 0.0 mm Very high 39
27 Aug after 34.8 °C 21 % 42 km/h 0.0 mm Very high 45
28 Aug after 33.0 °C 27 % 44 km/h 0.0 mm Very high 47
29 Aug after 31.9 °C 27 % 35 km/h 0.0 mm Very high 40
30 Aug after 32.2 °C 30 % 28 km/h 0.0 mm High 35
31 Aug after 32.3 °C 31 % 23 km/h 0.0 mm High 36
1 Sept after 34.0 °C 24 % 31 km/h 0.0 mm High 36
2 Sept after 34.5 °C 25 % 26 km/h 0.0 mm High 37
3 Sept after 32.0 °C 37 % 27 km/h 0.1 mm High 36
4 Sept after 31.3 °C 41 % 38 km/h 1.0 mm High 24

Before and after, from space

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

Before · 30 Jul 2026
After · 25 Aug 2026

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 21 August 2026 the air beside the fire reached 146 µg/m³ of PM2.5. That day averaged 78: 5.2 times the WHO daily guideline (15).

PM2.5 peak146 µg/m³
Days over the guideline24 days
PM10150 µg/m³
Optical depth1.40
45678910111213141516171819202122232425262728
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 · 156Every 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 Cacolo fire last?
GWIS (Copernicus) dates it between 6 August 2026 and 18 August 2026: 13 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 5,695 hectares (57.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Cacolo (5,728 ha, 0.5 %); Quirima (2 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 33.8 °C, humidity dropped to 16 % and gusts hit 44 km/h. The fire danger index (FWI) reached 48, class Very 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.

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 from the perimeter: the VIIRS detections inside it did not change them. 156 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.

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.