How long did the Cuemba fire last?

GWIS (Copernicus) dates it between 20 August 2026 and 31 August 2026: 12 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 6,543 hectares (65.4 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire entered 2 municipalities: Cuemba (6,319 ha, 0.5 %); Camacupa (268 ha, 0.0 %).

What was the weather like?

During the fire the temperature reached 33.7 °C, humidity dropped to 12 % and gusts hit 48 km/h. The fire danger index (FWI) reached 51, 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.

AO · Angola · 2026-08-20 → 2026-08-31

Cuemba fire, 20 August 2026 Cuemba, Camacupa

Out · last detection 31 Aug 2026, 00:33 UTC

The fire started on 20 August 2026 in Cuemba, Angola, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,543 hectares from heat detections, spread across 2 municipalities.

It is the 42th largest in Bié since 2016 (of 64 with a page). Number 302 in Angola in 2026, of 486.

Burnt area: 6,543ha; GWIS perimeter (Copernicus)
Duration: 12days; 20 Aug 2026 – 31 Aug 2026
Municipalities hit: 2; municipalities
Started on: 20 Aug; 2026
Heat detections: 199; in a single hotspot: 69 MW
Danger at start: 44; Very high · FWI index
Energy released: 2.2GW; sum of detected power

Play back 31 Aug 2026

HOTSPOTS BY DAY 20 Aug31 Aug

How it evolved, day by day

20212223242627293031

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

48km/h · peak gust

12%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 3.0 mm on 7 Sept.

This area had burned before

93% of the perimeter overlaps earlier fires recorded since 2016: 310 ha in 2016, 993 ha in 2017, 696 ha in 2019, 753 ha in 2021, 101 ha in 2022, 985 ha in 2023, 1,577 ha in 2024, 5,055 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 6,093 ha that had burned before.

What happened to each town

Cuemba where it started

6,319 ha reached on 13 Aug

0.5 %
Camacupa

268 ha reached on 16 Aug

0.0 %

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)
13 Aug	29.9 °C	26 %	41 km/h	0.0 mm	Very high 44
14 Aug	30.1 °C	31 %	41 km/h	0.3 mm	Very high 40
15 Aug	30.0 °C	26 %	38 km/h	0.0 mm	Very high 39
16 Aug	29.0 °C	23 %	36 km/h	0.0 mm	Very high 41
17 Aug	29.5 °C	19 %	37 km/h	0.0 mm	Very high 40
18 Aug	30.9 °C	12 %	34 km/h	0.0 mm	Very high 46
19 Aug	31.0 °C	14 %	38 km/h	0.0 mm	Very high 47
20 Aug	31.1 °C	14 %	41 km/h	0.0 mm	Very high 48
21 Aug	30.9 °C	17 %	28 km/h	0.0 mm	Very high 47
22 Aug	31.9 °C	19 %	28 km/h	0.0 mm	Very high 45
23 Aug	32.7 °C	18 %	38 km/h	0.0 mm	Very high 48
24 Aug	32.6 °C	19 %	43 km/h	0.0 mm	Extreme 51
25 Aug	32.3 °C	21 %	43 km/h	0.0 mm	Extreme 50
26 Aug	32.0 °C	22 %	35 km/h	0.0 mm	Very high 45
27 Aug	33.6 °C	16 %	38 km/h	0.0 mm	Very high 46
28 Aug	32.6 °C	17 %	48 km/h	0.0 mm	Extreme 51
29 Aug	31.9 °C	17 %	33 km/h	0.0 mm	Very high 47
30 Aug	32.5 °C	21 %	29 km/h	0.0 mm	Very high 41
31 Aug	32.6 °C	23 %	28 km/h	0.0 mm	Very high 42
1 Sept after	32.3 °C	22 %	34 km/h	0.0 mm	Very high 41
2 Sept after	33.7 °C	18 %	30 km/h	0.0 mm	Very high 42
3 Sept after	31.2 °C	24 %	32 km/h	0.0 mm	Very high 41
4 Sept after	30.2 °C	37 %	38 km/h	0.0 mm	High 38
5 Sept after	29.1 °C	32 %	34 km/h	1.3 mm	High 22
6 Sept after	31.4 °C	28 %	20 km/h	0.0 mm	High 32
7 Sept after	30.5 °C	38 %	30 km/h	3.0 mm	Moderate 11

Before and after, from space

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

↔

Before · 13 Aug 2026

After · 7 Sept 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 29 August 2026 the air beside the fire reached 116 µg/m³ of PM2.5. That day averaged 76: 5.0 times the WHO daily guideline (15).

PM2.5 peak116 µg/m³

Days over the guideline27 days

PM10119 µg/m³

Optical depth1.44

WHO 15

11121314151617181920212223242526272829303112345678

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 · 199Every 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 Cuemba fire last?: GWIS (Copernicus) dates it between 20 August 2026 and 31 August 2026: 12 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 6,543 hectares (65.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire entered 2 municipalities: Cuemba (6,319 ha, 0.5 %); Camacupa (268 ha, 0.0 %).
What was the weather like?: During the fire the temperature reached 33.7 °C, humidity dropped to 12 % and gusts hit 48 km/h. The fire danger index (FWI) reached 51, 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

NASA FIRMS ↗
GWIS · Copernicus ↗

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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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