Saurimo fire, 31 July 2025 Saurimo
The fire started on 31 July 2025 in Saurimo, Angola, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,239 hectares from heat detections, spread across a single municipality.
It is the 212th largest in Lunda Sul since 2016 (of 240 with a page). Number 167 in Angola in 2025, of 191.
- Burnt area
- 5,239ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 31 Jul 2025 – 3 Aug 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 31 Jul
- 2025
- Heat detections
- 236
- in a single hotspot: 125 MW
- Danger at start
- 42
- Very high · FWI index
- Energy released
- 1.6GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone more than two months without rain (1 mm or more) when it started.
This area had burned before
100% of the perimeter overlaps earlier fires recorded since 2016: 2,775 ha in 2016, 2,485 ha in 2017, 1,805 ha in 2018, 1,783 ha in 2019, 2,645 ha in 2020, 2,464 ha in 2021, 721 ha in 2022, 686 ha in 2023, 2,209 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 5,217 ha that had burned before.
- 2,549 ha Saurimo fire, June 2016 12,487 ha in total; the hectares shown are those it shares with this fire
- 1,270 ha Muconda fire, July 2021 9,438 ha in total; the hectares shown are those it shares with this fire
- 1,156 ha Saurimo fire, July 2020 6,810 ha in total; the hectares shown are those it shares with this fire
- 734 ha Muconda fire, July 2019 5,115 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Saurimo where it started5,278 ha reached on 30 Jul0.2 %
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) |
|---|---|---|---|---|---|
| 31 Jul | 27.9 °C | 22 % | 38 km/h | 0.0 mm | Very high 42 |
| 1 Aug | 28.5 °C | 22 % | 37 km/h | 0.0 mm | Very high 42 |
| 2 Aug | 29.2 °C | 21 % | 36 km/h | 0.0 mm | Very high 42 |
| 3 Aug | 28.5 °C | 19 % | 40 km/h | 0.0 mm | Very high 44 |
| 4 Aug after | 28.2 °C | 18 % | 36 km/h | 0.0 mm | Very high 42 |
| 5 Aug after | 29.6 °C | 19 % | 30 km/h | 0.0 mm | Very high 41 |
| 6 Aug after | 30.4 °C | 19 % | 19 km/h | 0.0 mm | Very high 40 |
| 7 Aug after | 30.1 °C | 23 % | 22 km/h | 0.0 mm | Very high 42 |
| 8 Aug after | 30.5 °C | 20 % | 28 km/h | 0.0 mm | Very high 43 |
| 9 Aug after | 31.1 °C | 16 % | 33 km/h | 0.0 mm | Very high 44 |
| 10 Aug after | 30.9 °C | 15 % | 25 km/h | 0.0 mm | Very high 43 |
| 11 Aug after | 31.3 °C | 19 % | 25 km/h | 0.0 mm | Very high 44 |
| 12 Aug after | 31.1 °C | 20 % | 43 km/h | 0.0 mm | Very high 47 |
| 13 Aug after | 29.9 °C | 19 % | 41 km/h | 0.0 mm | Very high 47 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 6 August 2025 the air beside the fire reached 163 µg/m³ of PM2.5. That day averaged 93: 6.2 times the WHO daily guideline (15).
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 · 236Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 12,487 haSaurimo28 June 2016 · 14 days · 6 km away
- 11,554 haSaurimo19 August 2026 · 8 days · 14 km away
- 47,992 haMuconda29 July 2026 · 34 days · 15 km away
- 9,636 haMuconda10 July 2020 · 9 days · 23 km away
- 11,513 haMuconda15 July 2020 · 11 days · 35 km away
- 9,737 haMuconda5 August 2017 · 11 days · 38 km away
Frequently asked questions
- How long did the Saurimo fire last?
- GWIS (Copernicus) dates it between 31 July 2025 and 3 August 2025: 4 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 5,239 hectares (52.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Saurimo (5,278 ha, 0.2 %).
- What was the weather like?
- During the fire the temperature reached 29.2 °C, humidity dropped to 19 % and gusts hit 40 km/h. The fire danger index (FWI) reached 44, 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
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
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.