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Dirico fire, 17 August 2023 Dirico

Out · last detection 28 Aug 2023, 13:00 UTC

The fire started on 17 August 2023 in Dirico, Angola, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 32,075 hectares from heat detections, spread across a single municipality.

It is the 18th largest in Cuando Cubango since 2016 (of 659 with a page). Number 2 in Angola in 2023, of 158.

Compare with…
Burnt area
32,075ha
GWIS perimeter (Copernicus)
Duration
11days
17 Aug 2023 – 27 Aug 2023
Municipalities hit
1
municipalities
Started on
17 Aug
2023
Heat detections
1,484
in a single hotspot: 146 MW
Danger at start
50
Extreme · FWI index
Average daily power
2.0GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 17 Aug27 Aug
28 Aug 2023

How it evolved, day by day

17 Aug 2023 · 3,222 MW · 151 18 Aug 2023 · 331 MW · 65 19 Aug 2023 · 1,343 MW · 100 20 Aug 2023 · 1,799 MW · 150 21 Aug 2023 · 5,056 MW · 239 22 Aug 2023 · 5,857 MW · 285 23 Aug 2023 · 1,531 MW · 127 24 Aug 2023 · 3,013 MW · 185 25 Aug 2023 · 1,886 MW · 114 26 Aug 2023 · 306 MW · 38 27 Aug 2023 · 106 MW · 27 28 Aug 2023 · 5 MW · 3
17 Aug 19 Aug 21 Aug 22 Aug 23 Aug 25 Aug 27 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

35°high
41km/h · peak gust
11%lowest humidity

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

This area had burned before

91% of the perimeter overlaps earlier fires recorded since 2016: 12,484 ha in 2016, 11,608 ha in 2017, 7,708 ha in 2018, 2,821 ha in 2019, 10,122 ha in 2020, 8,374 ha in 2021, 13,062 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 29,212 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 20% of the area of London (321 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. Dirico where it started
    32,238 ha reached on 17 Aug
    1.7 %

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.

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)
17 Aug 31.6 °C 17 % 36 km/h 0.0 mm Extreme 50
18 Aug 32.7 °C 14 % 28 km/h 0.0 mm Very high 46
19 Aug 32.3 °C 13 % 31 km/h 0.0 mm Very high 48
20 Aug 33.4 °C 13 % 33 km/h 0.0 mm Very high 50
21 Aug 34.0 °C 13 % 32 km/h 0.0 mm Very high 49
22 Aug 35.0 °C 11 % 31 km/h 0.0 mm Very high 50
23 Aug 35.0 °C 11 % 16 km/h 0.0 mm Very high 47
24 Aug 34.4 °C 13 % 30 km/h 0.0 mm Extreme 50
25 Aug 34.7 °C 14 % 38 km/h 0.0 mm Extreme 55
26 Aug 33.1 °C 14 % 33 km/h 0.0 mm Extreme 57
27 Aug 30.6 °C 12 % 41 km/h 0.0 mm Extreme 62
28 Aug after 28.3 °C 32 % 51 km/h 0.0 mm Very high 48
29 Aug after 27.4 °C 26 % 41 km/h 0.0 mm Very high 44
30 Aug after 27.6 °C 16 % 37 km/h 0.0 mm Very high 43
31 Aug after 29.0 °C 16 % 33 km/h 0.0 mm Very high 42
1 Sept after 31.9 °C 13 % 24 km/h 0.0 mm Very high 44
2 Sept after 32.8 °C 11 % 33 km/h 0.0 mm Very high 49
3 Sept after 33.7 °C 10 % 32 km/h 0.0 mm Extreme 51
4 Sept after 33.7 °C 11 % 34 km/h 0.0 mm Extreme 53
5 Sept after 34.3 °C 10 % 32 km/h 0.0 mm Extreme 53
6 Sept after 33.5 °C 13 % 33 km/h 0.0 mm Extreme 51

Before and after, from space

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

Before · 10 Aug 2023
After · 3 Sept 2023

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 23 August 2023 the air beside the fire reached 83 µg/m³ of PM2.5. That day averaged 54: 3.6 times the WHO daily guideline (15).

PM2.5 peak83 µg/m³
Days over the guideline12 days
PM10119 µg/m³
Optical depth1.17
15161718192021222324252627282930
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 · 1,484Every 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 Dirico fire last?
GWIS (Copernicus) dates it between 17 August 2023 and 27 August 2023: 11 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 32,075 hectares (320.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Dirico (32,238 ha, 1.7 %).
What was the weather like?
During the fire the temperature reached 35.0 °C, humidity dropped to 11 % and gusts hit 41 km/h. The fire danger index (FWI) reached 62, 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 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. 1,484 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.