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Idiofa fire, 26 July 2025 Idiofa

Out · last detection 21 Aug 2025, 11:49 UTC

The fire started on 26 July 2025 in Idiofa, Democratic Republic of the Congo, and satellites saw it burning for 27 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,180 hectares from heat detections, spread across a single municipality.

It is the 127th largest in Kwilu since 2016 (of 236 with a page). Number 57 in Democratic Republic of the Congo in 2025, of 118.

Compare with…
Burnt area
7,180ha
GWIS perimeter (Copernicus)
Duration
27days
26 Jul 2025 – 21 Aug 2025
Municipalities hit
1
territories
Started on
26 Jul
2025
Heat detections
688
in a single hotspot: 175 MW
Danger at start
29
High · FWI index
Average daily power
317MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 26 Jul21 Aug
21 Aug 2025

How it evolved, day by day

26 Jul 2025 · 17 MW · 1 28 Jul 2025 · 35 MW · 4 29 Jul 2025 · 240 MW · 15 30 Jul 2025 · 640 MW · 47 31 Jul 2025 · 326 MW · 17 1 Aug 2025 · 56 MW · 5 2 Aug 2025 · 358 MW · 30 3 Aug 2025 · 99 MW · 6 4 Aug 2025 · 742 MW · 58 5 Aug 2025 · 144 MW · 21 6 Aug 2025 · 125 MW · 18 7 Aug 2025 · 395 MW · 33 8 Aug 2025 · 817 MW · 63 9 Aug 2025 · 690 MW · 54 10 Aug 2025 · 209 MW · 15 11 Aug 2025 · 444 MW · 39 12 Aug 2025 · 283 MW · 32 13 Aug 2025 · 655 MW · 47 14 Aug 2025 · 303 MW · 27 15 Aug 2025 · 18 MW · 4 16 Aug 2025 · 379 MW · 26 17 Aug 2025 · 78 MW · 4 18 Aug 2025 · 262 MW · 36 19 Aug 2025 · 531 MW · 47 20 Aug 2025 · 163 MW · 22 21 Aug 2025 · 222 MW · 17
26 Jul 31 Jul 4 Aug 8 Aug 12 Aug 16 Aug 20 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

33°high
31km/h · peak gust
24%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started.

This area had burned before

91% of the perimeter overlaps earlier fires recorded since 2016: 4,155 ha in 2016, 2,334 ha in 2017, 4,099 ha in 2018, 2,359 ha in 2019, 3,700 ha in 2020, 2,090 ha in 2021, 2,152 ha in 2022, 3,227 ha in 2023, 2,762 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 6,558 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 4.5% of the area of London (72 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. Idiofa where it started
    7,232 ha reached on 26 Jul
    0.4 %

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)
2 Aug 33.0 °C 28 % 26 km/h 0.0 mm High 29
3 Aug 32.6 °C 31 % 18 km/h 0.0 mm High 29
4 Aug 33.0 °C 24 % 28 km/h 0.0 mm High 31
5 Aug 33.2 °C 29 % 26 km/h 0.0 mm High 30
6 Aug 32.8 °C 35 % 27 km/h 0.0 mm High 29
7 Aug 32.5 °C 37 % 27 km/h 0.0 mm High 28
8 Aug 31.9 °C 41 % 31 km/h 0.0 mm High 28
9 Aug 31.3 °C 46 % 29 km/h 0.2 mm High 25
10 Aug 33.2 °C 40 % 29 km/h 0.0 mm High 25
11 Aug 32.1 °C 42 % 24 km/h 0.0 mm High 24
12 Aug 32.0 °C 46 % 24 km/h 0.2 mm High 24
13 Aug 29.7 °C 52 % 28 km/h 0.3 mm High 23
14 Aug 31.5 °C 40 % 24 km/h 0.0 mm High 23
15 Aug 32.6 °C 33 % 31 km/h 0.0 mm High 28
16 Aug 33.4 °C 31 % 23 km/h 0.0 mm High 29
17 Aug 32.8 °C 33 % 25 km/h 0.0 mm High 29
18 Aug 32.0 °C 38 % 30 km/h 0.0 mm High 30
19 Aug 32.2 °C 37 % 22 km/h 0.0 mm High 29
20 Aug 34.5 °C 28 % 21 km/h 0.0 mm High 29
21 Aug 32.2 °C 36 % 31 km/h 0.0 mm High 33
22 Aug after 33.5 °C 30 % 22 km/h 0.0 mm High 30
23 Aug after 34.7 °C 25 % 23 km/h 0.0 mm High 33
24 Aug after 32.5 °C 34 % 27 km/h 0.0 mm High 34

Before and after, from space

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

Before · 19 Jul 2025
After · 28 Aug 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 1 August 2025 the air beside the fire reached 143 µg/m³ of PM2.5. That day averaged 86: 5.7 times the WHO daily guideline (15).

PM2.5 peak143 µg/m³
Days over the guideline18 days
PM10149 µg/m³
Optical depth1.80
311234567891011121314151617
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 · 688Every 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 Democratic Republic of the Congo ›

Frequently asked questions

How long did the Idiofa fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 26 July 2025 to 21 August 2025 (27 days). The perimeter dates it from 2 August 2025 to 14 August 2025.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 7,180 hectares (71.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Idiofa (7,232 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 33.2 °C, humidity dropped to 24 % and gusts hit 31 km/h. The fire danger index (FWI) reached 31, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Democratic Republic of the Congo (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: 14 August 2025 → 21 August 2025.
  2. Start date: 2 August 2025 → 26 July 2025.

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 adjusted with the VIIRS detections inside the perimeter, which said 2 August 2025 to 14 August 2025. 688 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 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.