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Molumbo fire, August 2026 Molumbo

Out · last detection 2 Sept 2026, 10:45 UTC

The fire started on 16 August 2026 in Molumbo, Mozambique, and satellites saw it burning for 17 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,540 hectares from heat detections, spread across a single municipality.

It is the 317th largest in Zambézia since 2016 (of 842 with a page). Number 175 in Mozambique in 2026, of 532.

Compare with…
Burnt area
5,540ha
GWIS perimeter (Copernicus)
Duration
17days
16 Aug 2026 – 1 Sept 2026
Municipalities hit
1
districts
Started on
16 Aug
2026
Heat detections
84
in a single hotspot: 49 MW
Danger at start
15
Moderate · FWI index
Average daily power
38MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Aug1 Sept
2 Sept 2026

How it evolved, day by day

16 Aug 2026 · 18 MW · 5 17 Aug 2026 · 6 MW · 3 19 Aug 2026 · 20 MW · 2 20 Aug 2026 · 28 MW · 8 21 Aug 2026 · 88 MW · 15 22 Aug 2026 · 236 MW · 17 23 Aug 2026 · 37 MW · 9 25 Aug 2026 · 18 MW · 4 26 Aug 2026 · 6 MW · 1 27 Aug 2026 · 15 MW · 5 29 Aug 2026 · 8 MW · 2 30 Aug 2026 · 10 MW · 2 1 Sept 2026 · 14 MW · 3 2 Sept 2026 · 22 MW · 8
16 Aug 19 Aug 21 Aug 22 Aug 23 Aug 26 Aug 29 Aug 1 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

30°high
42km/h · peak gust
22%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 8 Sept.

This area had burned before

93% of the perimeter overlaps earlier fires recorded since 2016: 1,511 ha in 2016, 2,933 ha in 2017, 1,524 ha in 2018, 1,467 ha in 2019, 583 ha in 2021, 2,027 ha in 2022, 1,036 ha in 2023, 21 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 5,173 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.5% of the area of London (55 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. Molumbo where it started
    5,575 ha reached on 16 Aug
    1.3 %

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)
16 Aug 23.7 °C 42 % 30 km/h 0.0 mm Moderate 15
17 Aug 24.0 °C 42 % 28 km/h 0.0 mm Moderate 17
18 Aug 25.6 °C 39 % 25 km/h 0.0 mm Moderate 19
19 Aug 26.2 °C 40 % 28 km/h 0.0 mm Moderate 20
20 Aug 25.7 °C 49 % 28 km/h 0.1 mm Moderate 21
21 Aug 28.5 °C 40 % 33 km/h 0.0 mm High 23
22 Aug 29.5 °C 26 % 34 km/h 0.0 mm High 31
23 Aug 30.4 °C 22 % 30 km/h 0.0 mm High 34
24 Aug 26.2 °C 38 % 38 km/h 0.0 mm High 31
25 Aug 25.6 °C 46 % 29 km/h 0.0 mm High 24
26 Aug 24.9 °C 54 % 30 km/h 0.0 mm High 22
27 Aug 25.7 °C 40 % 42 km/h 0.1 mm High 26
28 Aug 24.9 °C 47 % 36 km/h 0.5 mm High 25
29 Aug 24.2 °C 49 % 29 km/h 0.5 mm High 22
30 Aug 29.6 °C 30 % 29 km/h 0.0 mm High 27
31 Aug 30.5 °C 24 % 30 km/h 0.0 mm High 34
1 Sept 29.5 °C 29 % 34 km/h 0.0 mm High 35
2 Sept after 29.8 °C 26 % 34 km/h 0.0 mm High 34
3 Sept after 29.9 °C 29 % 29 km/h 0.0 mm High 32
4 Sept after 30.8 °C 30 % 47 km/h 0.0 mm Very high 41
5 Sept after 30.1 °C 34 % 27 km/h 0.0 mm High 33
6 Sept after 28.7 °C 36 % 32 km/h 0.0 mm High 33
7 Sept after 27.6 °C 36 % 41 km/h 0.0 mm High 36
8 Sept after 21.7 °C 60 % 45 km/h 1.5 mm Moderate 13

Before and after, from space

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

Before · 9 Aug 2026
After · 8 Sept 2026

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 3 September 2026 the air beside the fire reached 147 µg/m³ of PM2.5. That day averaged 88: 5.9 times the WHO daily guideline (15).

PM2.5 peak147 µg/m³
Days over the guideline10 days
PM10150 µg/m³
Optical depth1.22
1415161718192021222324252627282930311234
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 · 84Every 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 Mozambique ›

Frequently asked questions

How long did the Molumbo fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 16 August 2026 to 1 September 2026 (17 days). The perimeter dates it from 18 August 2026 to 25 August 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,540 hectares (55.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Molumbo (5,575 ha, 1.3 %).
What was the weather like?
During the fire the temperature reached 30.5 °C, humidity dropped to 22 % and gusts hit 42 km/h. The fire danger index (FWI) reached 35, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mozambique (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 adjusted with the VIIRS detections inside the perimeter, which said 18 August 2026 to 25 August 2026. 84 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.