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AO · Angola · –

Sanza Pombo fire, 22 August 2025 Sanza Pombo, Milunga

Out · last detection 23 Sept 2025, 13:11 UTC

The fire started on 22 August 2025 in Sanza Pombo, Angola, and satellites saw it burning for 32 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 70,422 hectares from heat detections, spread across 2 municipalities.

Number 4 in Angola in 2025, of 163.

GWIS near-real-time perimeter, from the layer that changed in August 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.

Burnt area
70,422ha
GWIS perimeter (Copernicus)
Duration
32days
22 Aug 2025 – 22 Sept 2025
Municipalities hit
2
municipalities
Started on
22 Aug
2025
Heat detections
3,093
in a single hotspot: 426 MW
Danger at start
32
High · FWI index
Average daily power
1.6GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 22 Aug22 Sept
23 Sept 2025

How it evolved, day by day

22 Aug 2025 · 104 MW · 11 23 Aug 2025 · 775 MW · 37 24 Aug 2025 · 83 MW · 8 25 Aug 2025 · 1,981 MW · 59 26 Aug 2025 · 1,227 MW · 79 27 Aug 2025 · 1,886 MW · 90 29 Aug 2025 · 171 MW · 13 30 Aug 2025 · 1,299 MW · 104 31 Aug 2025 · 13 MW · 2 1 Sept 2025 · 4,828 MW · 266 2 Sept 2025 · 5,225 MW · 394 3 Sept 2025 · 3,263 MW · 209 4 Sept 2025 · 5,295 MW · 321 5 Sept 2025 · 2,791 MW · 184 6 Sept 2025 · 1,458 MW · 124 7 Sept 2025 · 647 MW · 51 8 Sept 2025 · 4,222 MW · 268 9 Sept 2025 · 4,523 MW · 265 10 Sept 2025 · 3,300 MW · 159 11 Sept 2025 · 1,384 MW · 83 12 Sept 2025 · 1,236 MW · 98 13 Sept 2025 · 17 MW · 4 14 Sept 2025 · 15 MW · 1 15 Sept 2025 · 1,499 MW · 115 16 Sept 2025 · 1,227 MW · 97 17 Sept 2025 · 49 MW · 7 18 Sept 2025 · 109 MW · 25 19 Sept 2025 · 34 MW · 4 21 Sept 2025 · 2 MW · 1 22 Sept 2025 · 95 MW · 13 23 Sept 2025 · 9 MW · 1
22 Aug 30 Aug 4 Sept 13 Sept 21 Sept

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

The weather it burned in

32°high
38km/h · peak gust
24%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 24 Sept.

This area had burned before

67% of the perimeter overlaps earlier fires recorded since 2016: 14,071 ha in 2016, 14,870 ha in 2017, 12,143 ha in 2018, 4,826 ha in 2019, 16,099 ha in 2020, 9,055 ha in 2021, 5,044 ha in 2022, 630 ha in 2023, 21,827 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 47,370 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 44% of the area of London (704 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. Sanza Pombo where it started
    47,911 ha reached on 22 Aug
    9.8 %
  2. 23,047 ha reached on 22 Aug
    3.7 %

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 area67 ha
Residents≈ 6,200

Inside the perimeter there were about 67 hectares of built-up land and about 6,200 residents (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)

Started with 60 days without rain: 84 % of the area in Angola

Day High Min. humidity Peak gust Rain Danger (FWI)
22 Aug 28.3 °C 34 % 30 km/h 0.0 mm High 32
23 Aug 29.3 °C 31 % 33 km/h 0.0 mm High 34
24 Aug 29.7 °C 29 % 33 km/h 0.0 mm High 34
25 Aug 26.1 °C 45 % 33 km/h 0.0 mm High 28
26 Aug 30.4 °C 39 % 31 km/h 0.0 mm High 28
27 Aug 30.9 °C 39 % 31 km/h 0.0 mm High 28
28 Aug 25.0 °C 63 % 27 km/h 0.8 mm Moderate 15
29 Aug 31.0 °C 33 % 28 km/h 0.0 mm High 28
30 Aug 29.9 °C 44 % 35 km/h 0.0 mm High 28
31 Aug 26.1 °C 51 % 31 km/h 0.0 mm High 24
1 Sept 29.4 °C 40 % 36 km/h 0.0 mm High 26
2 Sept 30.8 °C 30 % 38 km/h 0.0 mm High 35
3 Sept 30.7 °C 24 % 38 km/h 0.0 mm Very high 38
4 Sept 29.0 °C 36 % 30 km/h 0.0 mm High 34
5 Sept 29.2 °C 41 % 29 km/h 0.0 mm High 31
6 Sept 30.8 °C 32 % 33 km/h 0.0 mm High 32
7 Sept 30.3 °C 33 % 31 km/h 0.0 mm High 32
8 Sept 29.9 °C 41 % 28 km/h 0.2 mm High 30
9 Sept 29.2 °C 42 % 26 km/h 0.0 mm High 30
10 Sept 30.3 °C 40 % 28 km/h 0.1 mm High 30
11 Sept 31.2 °C 41 % 32 km/h 0.5 mm High 30
12 Sept 29.7 °C 42 % 31 km/h 0.0 mm High 30
13 Sept 28.9 °C 46 % 27 km/h 0.4 mm High 26
14 Sept 31.2 °C 38 % 26 km/h 0.3 mm High 26
15 Sept 31.9 °C 37 % 28 km/h 0.5 mm High 28
16 Sept 32.0 °C 34 % 27 km/h 0.1 mm High 31
17 Sept 30.7 °C 42 % 31 km/h 0.5 mm High 31
18 Sept 31.2 °C 36 % 27 km/h 0.4 mm High 31
19 Sept 31.3 °C 37 % 31 km/h 1.0 mm High 25
20 Sept 29.9 °C 43 % 23 km/h 0.7 mm High 23
21 Sept 27.0 °C 58 % 28 km/h 9.3 mm Very low 3
22 Sept 30.4 °C 41 % 24 km/h 0.2 mm Moderate 11
23 Sept after 31.8 °C 37 % 31 km/h 0.8 mm Moderate 20
24 Sept after 28.2 °C 51 % 23 km/h 1.5 mm Low 11

Before and after, from space

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

Before · 15 Aug 2025
After · 29 Sept 2025

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 11 September 2025 the air beside the fire reached 140 µg/m³ of PM2.5. That day averaged 75: 5.0 times the WHO daily guideline (15).

PM2.5 peak140 µg/m³
Days over the guideline24 days
PM10144 µg/m³
Optical depth1.92
27 Aug1 Sept6 Sept11 Sept16 Sept
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 · 3,093Every 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 Sanza Pombo fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 22 August 2025 to 22 September 2025 (32 days). The perimeter dates it from 29 August 2025 to 16 September 2025.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 70,422 hectares (704.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Sanza Pombo (47,911 ha, 9.8 %); Milunga (23,047 ha, 3.7 %).
What was the weather like?
During the fire the temperature reached 32.0 °C, humidity dropped to 24 % and gusts hit 38 km/h. The fire danger index (FWI) reached 38, 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 16 September 2025 → 22 September 2025.
  2. Start date: 29 August 2025 → 22 August 2025.

RSS Changes to this page With cross-checks and a citable version

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; 3 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 29 August 2025 to 16 September 2025. 3,093 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.