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Mocuba fire, 3 September 2024 Mocuba, Derre

Out · last detection 21 Sept 2024, 11:05 UTC

The fire started on 3 September 2024 in Mocuba, Mozambique, and satellites saw it burning for 19 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 73,182 hectares from heat detections, spread across 2 municipalities.

It is the 21th largest in Zambézia since 2016 (of 839 with a page). The largest in Mozambique in 2024, of 150.

Compare with…
Burnt area
73,182ha
GWIS perimeter (Copernicus)
Duration
19days
3 Sept 2024 – 21 Sept 2024
Municipalities hit
2
districts
Started on
3 Sept
2024
Heat detections
4,214
in a single hotspot: 154 MW
Danger at start
4
Very low · FWI index
Average daily power
2.8GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 3 Sept21 Sept
21 Sept 2024

How it evolved, day by day

3 Sept 2024 · 4 MW · 1 4 Sept 2024 · 97 MW · 6 6 Sept 2024 · 148 MW · 20 7 Sept 2024 · 139 MW · 26 8 Sept 2024 · 654 MW · 85 9 Sept 2024 · 1,329 MW · 157 10 Sept 2024 · 726 MW · 79 11 Sept 2024 · 9 MW · 2 12 Sept 2024 · 313 MW · 49 13 Sept 2024 · 1,502 MW · 172 14 Sept 2024 · 2,850 MW · 265 15 Sept 2024 · 5,412 MW · 518 16 Sept 2024 · 13,864 MW · 975 17 Sept 2024 · 4,653 MW · 358 18 Sept 2024 · 6,823 MW · 594 19 Sept 2024 · 6,229 MW · 502 20 Sept 2024 · 5,316 MW · 389 21 Sept 2024 · 85 MW · 16
3 Sept 7 Sept 10 Sept 13 Sept 16 Sept 19 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

38°high
45km/h · peak gust
17%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 10.9 mm on 22 Sept.

This area had burned before

84% of the perimeter overlaps earlier fires recorded since 2016: 13,421 ha in 2016, 5,052 ha in 2017, 20,986 ha in 2018, 13,546 ha in 2019, 24,460 ha in 2020, 41,561 ha in 2021, 26,236 ha in 2022, 26,488 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 61,354 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 46% of the area of London (732 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. Mocuba where it started
    72,659 ha reached on 3 Sept
    8.2 %
  2. 975 ha reached on 6 Sept
    0.2 %

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.

People and buildings inside the perimeter

GHSL 2025
Built-up area41 ha
Residents≈ 7,700

Inside the perimeter there were about 41 hectares of built-up land and about 7,700 residents (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)
3 Sept 25.7 °C 63 % 38 km/h 1.9 mm Very low 4
4 Sept 28.3 °C 38 % 28 km/h 0.1 mm Moderate 12
5 Sept 30.4 °C 31 % 19 km/h 0.0 mm Moderate 18
6 Sept 31.8 °C 33 % 31 km/h 0.0 mm Moderate 21
7 Sept 32.0 °C 39 % 35 km/h 0.2 mm Moderate 21
8 Sept 33.8 °C 36 % 27 km/h 0.0 mm High 21
9 Sept 36.8 °C 23 % 31 km/h 0.0 mm High 31
10 Sept 31.2 °C 43 % 39 km/h 0.4 mm High 25
11 Sept 31.2 °C 41 % 37 km/h 0.4 mm High 25
12 Sept 32.1 °C 40 % 32 km/h 0.0 mm High 25
13 Sept 34.5 °C 28 % 31 km/h 0.0 mm High 29
14 Sept 35.7 °C 23 % 28 km/h 0.0 mm High 31
15 Sept 37.5 °C 23 % 32 km/h 0.0 mm High 34
16 Sept 36.4 °C 17 % 45 km/h 0.0 mm Very high 43
17 Sept 35.8 °C 18 % 40 km/h 0.0 mm Very high 41
18 Sept 36.1 °C 19 % 35 km/h 0.0 mm Very high 39
19 Sept 36.6 °C 19 % 37 km/h 0.0 mm Very high 41
20 Sept 37.6 °C 22 % 36 km/h 0.0 mm Very high 44
21 Sept 33.1 °C 39 % 32 km/h 0.2 mm High 33
22 Sept after 26.4 °C 71 % 32 km/h 10.9 mm Very low 0

Before and after, from space

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

Before · 27 Aug 2024
After · 28 Sept 2024

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 18 September 2024 the air beside the fire reached 87 µg/m³ of PM2.5. That day averaged 44: 2.9 times the WHO daily guideline (15).

PM2.5 peak87 µg/m³
Days over the guideline6 days
PM10124 µg/m³
Optical depth1.40
89101112131415161718192021222324
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 · 4,214Every 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 Mocuba fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 3 September 2024 to 21 September 2024 (19 days). The perimeter dates it from 10 September 2024 to 21 September 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 73,182 hectares (731.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Mocuba (72,659 ha, 8.2 %); Derre (975 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 37.6 °C, humidity dropped to 17 % and gusts hit 45 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 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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 10 September 2024 → 3 September 2024.

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; 6 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 10 September 2024 to 21 September 2024. 4,214 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

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.