How long did the Mussende fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 6 August 2026 to 24 August 2026 (19 days). The perimeter dates it from 6 August 2026 to 17 August 2026.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 7,175 hectares (71.8 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Mussende (7,214 ha, 0.6 %).

What was the weather like?

During the fire the temperature reached 31.4 °C, humidity dropped to 15 % and gusts hit 48 km/h. The fire danger index (FWI) reached 45, 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.

AO · Angola · 2026-08-06 → 2026-08-24

Mussende fire, 6 August 2026 Mussende

Out · last detection 24 Aug 2026, 11:57 UTC

The fire started on 6 August 2026 in Mussende, Angola, and satellites saw it burning for 19 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,175 hectares from heat detections, spread across a single municipality.

It is the 37th largest in Cuanza Sul since 2016 (of 79 with a page). Number 256 in Angola in 2026, of 487.

Compare with…

Suggestions: Mussende · 2017 Mussende · 2026 Mussende · 2026

Burnt area: 7,175ha; GWIS perimeter (Copernicus)
Duration: 19days; 6 Aug 2026 – 24 Aug 2026
Municipalities hit: 1; municipalities
Started on: 6 Aug; 2026
Heat detections: 173; in a single hotspot: 74 MW
Danger at start: 34; High · FWI index
Average daily power: 149MW; detected power per day, on average

HOTSPOTS BY DAY 6 Aug24 Aug

Play back 24 Aug 2026

How it evolved, day by day

6 Aug 10 Aug 13 Aug 16 Aug 20 Aug 24 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

31°high

48km/h · peak gust

15%lowest humidity

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

This area had burned before

85% of the perimeter overlaps earlier fires recorded since 2016: 3,613 ha in 2017, 1,046 ha in 2018, 222 ha in 2019, 864 ha in 2021, 2,463 ha in 2023, 1,168 ha in 2024, 421 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 6,066 ha that had burned before.

1,426 ha Mussende fire, June 2017 5,995 ha in total; the hectares shown are those it shares with this fire

How big is it?

It burned the equivalent of 4.5% of the area of London (72 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

Mussende where it started

7,214 ha reached on 6 Aug

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.

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	29.2 °C	25 %	34 km/h	0.0 mm	High 34
7 Aug	30.3 °C	19 %	34 km/h	0.0 mm	High 36
8 Aug	30.1 °C	23 %	35 km/h	0.0 mm	High 37
9 Aug	30.4 °C	22 %	34 km/h	0.0 mm	High 37
10 Aug	30.5 °C	20 %	30 km/h	0.0 mm	High 38
11 Aug	30.3 °C	20 %	30 km/h	0.0 mm	High 38
12 Aug	30.4 °C	18 %	42 km/h	0.0 mm	Very high 42
13 Aug	30.3 °C	25 %	42 km/h	0.0 mm	Very high 42
14 Aug	30.6 °C	32 %	48 km/h	0.3 mm	Very high 39
15 Aug	30.6 °C	31 %	45 km/h	0.0 mm	Very high 40
16 Aug	29.9 °C	27 %	40 km/h	0.0 mm	Very high 38
17 Aug	30.5 °C	19 %	41 km/h	0.0 mm	Very high 41
18 Aug	30.5 °C	21 %	40 km/h	0.0 mm	Very high 41
19 Aug	31.4 °C	15 %	40 km/h	0.0 mm	Very high 45
20 Aug	30.6 °C	15 %	42 km/h	0.0 mm	Very high 45
21 Aug	29.4 °C	24 %	34 km/h	0.0 mm	Very high 40
22 Aug	30.6 °C	25 %	24 km/h	0.0 mm	Very high 39
23 Aug	31.3 °C	25 %	42 km/h	0.0 mm	Very high 44
24 Aug	31.1 °C	27 %	38 km/h	0.0 mm	Very high 42
25 Aug after	30.7 °C	28 %	33 km/h	0.0 mm	High 38
26 Aug after	30.1 °C	32 %	39 km/h	0.0 mm	High 38
27 Aug after	32.8 °C	26 %	43 km/h	0.0 mm	Very high 40
28 Aug after	31.7 °C	25 %	41 km/h	0.0 mm	Very high 40
29 Aug after	31.2 °C	26 %	38 km/h	0.0 mm	Very high 38
30 Aug after	29.9 °C	35 %	28 km/h	0.0 mm	High 33
31 Aug after	28.0 °C	49 %	31 km/h	0.3 mm	High 25
1 Sept after	32.5 °C	28 %	27 km/h	0.0 mm	High 34
2 Sept after	32.4 °C	27 %	24 km/h	0.0 mm	High 33
3 Sept after	29.0 °C	39 %	36 km/h	0.0 mm	High 34

Before and after, from space

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

↔

Before · 30 Jul 2026

After · 31 Aug 2026

Before After

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 12 August 2026 the air beside the fire reached 266 µg/m³ of PM2.5. That day averaged 139: 9.3 times the WHO daily guideline (15).

PM2.5 peak266 µg/m³

Days over the guideline24 days

PM10271 µg/m³

Optical depth1.69

WHO 15

456789101112131415161718192021222324252627

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 · 173Every 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

All fires in Angola ›

Frequently asked questions

How long did the Mussende fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 6 August 2026 to 24 August 2026 (19 days). The perimeter dates it from 6 August 2026 to 17 August 2026.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 7,175 hectares (71.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Mussende (7,214 ha, 0.6 %).
What was the weather like?: During the fire the temperature reached 31.4 °C, humidity dropped to 15 % and gusts hit 48 km/h. The fire danger index (FWI) reached 45, 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

NASA FIRMS ↗
GWIS · Copernicus ↗

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

26 October 2026 Last day with fire: 17 August 2026 → 24 August 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.

Report an error

What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

Your connection to the fire (optional) Email (optional)

We will only use your email to reply about this report. Privacy.

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 6 August 2026 to 17 August 2026. 173 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.

Where it burned