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Macossa fire, 11 September 2026 Macossa

Out · last detection 23 Sept 2026, 12:32 UTC

The fire started on 11 September 2026 in Macossa, Mozambique, and satellites saw it burning for 13 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,298 hectares from heat detections, spread across a single municipality.

It is the 90th largest in Manica since 2016 (of 198 with a page). Number 273 in Mozambique in 2026, of 532.

Burnt area
4,298ha
GWIS perimeter (Copernicus)
Duration
13days
11 Sept 2026 – 23 Sept 2026
Municipalities hit
1
districts
Started on
11 Sept
2026
Heat detections
92
in a single hotspot: 45 MW
Danger at start
18
Moderate · FWI index
Energy released
1.2GW
sum of detected power

Where it burned

23 Sept 2026
HOTSPOTS BY DAY 11 Sept23 Sept

How it evolved, day by day

121314151619212223

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

34°high
40km/h · peak gust
22%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 4.9 mm on 29 Sept.

This area had burned before

90% of the perimeter overlaps earlier fires recorded since 2016: 795 ha in 2016, 243 ha in 2017, 1,280 ha in 2018, 1,916 ha in 2019, 1,620 ha in 2020, 495 ha in 2021, 886 ha in 2022, 1,432 ha in 2023, 1,436 ha in 2024, 1,439 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 3,886 ha that had burned before.

What happened to each town

  1. Macossa where it started
    4,318 ha reached on 12 Sept
    0.4 %

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)
11 Sept 28.9 °C 43 % 21 km/h 0.1 mm Moderate 18
12 Sept 30.7 °C 35 % 23 km/h 0.3 mm High 24
13 Sept 30.5 °C 35 % 24 km/h 0.0 mm High 25
14 Sept 30.3 °C 33 % 25 km/h 0.2 mm High 26
15 Sept 31.4 °C 30 % 32 km/h 0.0 mm High 30
16 Sept 33.2 °C 22 % 34 km/h 0.0 mm High 36
17 Sept 34.0 °C 22 % 29 km/h 0.0 mm High 36
18 Sept 31.3 °C 31 % 40 km/h 0.0 mm High 38
19 Sept 30.3 °C 31 % 32 km/h 0.1 mm High 36
20 Sept 30.3 °C 32 % 35 km/h 0.0 mm High 36
21 Sept 29.8 °C 35 % 31 km/h 0.0 mm High 33
22 Sept 30.5 °C 37 % 34 km/h 0.1 mm High 32
23 Sept 29.8 °C 38 % 35 km/h 0.0 mm High 32
24 Sept after 31.3 °C 33 % 34 km/h 0.0 mm High 33
25 Sept after 29.1 °C 34 % 36 km/h 0.0 mm High 32
26 Sept after 31.4 °C 31 % 20 km/h 0.0 mm High 30
27 Sept after 34.5 °C 25 % 27 km/h 0.0 mm High 35
28 Sept after 35.7 °C 29 % 34 km/h 0.0 mm Very high 41
29 Sept after 28.8 °C 60 % 44 km/h 4.9 mm Low 7

Before and after, from space

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

Before · 4 Sept 2026
After · 30 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 16 September 2026 the air beside the fire reached 114 µg/m³ of PM2.5. That day averaged 74: 4.9 times the WHO daily guideline (15).

PM2.5 peak114 µg/m³
Days over the guideline13 days
PM10117 µg/m³
Optical depth1.05
91011121314151617181920212223242526
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 · 92Every 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 Macossa fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 11 September 2026 to 23 September 2026 (13 days). The perimeter dates it from 11 September 2026 to 16 September 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 4,298 hectares (43.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Macossa (4,318 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 34.0 °C, humidity dropped to 22 % and gusts hit 40 km/h. The fire danger index (FWI) reached 38, 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

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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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.