Cuilo fire, 14 July 2025 Cuilo
The fire started on 14 July 2025 in Cuilo, Angola, and satellites saw it burning for 2 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,060 hectares from heat detections, spread across a single municipality.
It is the 255th largest in Lunda Norte since 2016 (of 411 with a page). Number 127 in Angola in 2025, of 191.
- Burnt area
- 6,060ha
- GWIS perimeter (Copernicus)
- Duration
- 2days
- 14 Jul 2025 – 15 Jul 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 14 Jul
- 2025
- Heat detections
- 170
- in a single hotspot: 426 MW
- Danger at start
- 39
- Very high · FWI index
- Energy released
- 16.2GW
- 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
98% of the perimeter overlaps earlier fires recorded since 2016: 1,634 ha in 2016, 190 ha in 2017, 2,486 ha in 2018, 2,064 ha in 2020, 1,966 ha in 2021, 3,320 ha in 2022, 2,489 ha in 2023, 1,689 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 5,954 ha that had burned before.
- 2,489 ha Cuilo fire, July 2023 6,384 ha in total; the hectares shown are those it shares with this fire
- 2,486 ha Cuilo fire, July 2018 7,072 ha in total; the hectares shown are those it shares with this fire
- 1,866 ha Cuilo fire, July 2021 5,830 ha in total; the hectares shown are those it shares with this fire
- 1,689 ha Cuilo fire, July 2024 5,698 ha in total; the hectares shown are those it shares with this fire
- 1,634 ha Cuilo fire, July 2016 8,292 ha in total; the hectares shown are those it shares with this fire
- 1,059 ha Cuilo fire, July 2022 12,857 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Cuilo where it started6,103 ha reached on 14 Jul0.6 %
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) |
|---|---|---|---|---|---|
| 14 Jul | 31.0 °C | 23 % | 32 km/h | 0.0 mm | Very high 39 |
| 15 Jul | 30.9 °C | 23 % | 34 km/h | 0.0 mm | Very high 39 |
| 16 Jul after | 30.5 °C | 22 % | 25 km/h | 0.0 mm | Very high 40 |
| 17 Jul after | 29.7 °C | 26 % | 24 km/h | 0.0 mm | High 36 |
| 18 Jul after | 29.1 °C | 37 % | 24 km/h | 0.0 mm | High 30 |
| 19 Jul after | 30.6 °C | 29 % | 34 km/h | 0.0 mm | High 35 |
| 20 Jul after | 30.5 °C | 27 % | 45 km/h | 0.0 mm | Very high 39 |
| 21 Jul after | 29.7 °C | 27 % | 38 km/h | 0.0 mm | High 36 |
| 22 Jul after | 30.3 °C | 22 % | 29 km/h | 0.0 mm | High 35 |
| 23 Jul after | 30.5 °C | 24 % | 37 km/h | 0.0 mm | Very high 38 |
| 24 Jul after | 30.2 °C | 27 % | 32 km/h | 0.0 mm | High 37 |
| 25 Jul after | 29.2 °C | 29 % | 31 km/h | 0.0 mm | High 36 |
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 17 July 2025 the air beside the fire reached 56 µg/m³ of PM2.5. That day averaged 36: 2.4 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 · 170Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Cuilo fire last?
- GWIS (Copernicus) dates it between 14 July 2025 and 15 July 2025: 2 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 6,060 hectares (60.6 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Cuilo (6,103 ha, 0.6 %).
- What was the weather like?
- During the fire the temperature reached 31.0 °C, humidity dropped to 23 % and gusts hit 34 km/h. The fire danger index (FWI) reached 39, 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.