Mecula fire, 9 September 2025 Mecula
The fire started on 9 September 2025 in Mecula, Mozambique, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 10,627 hectares from heat detections, spread across a single municipality.
It is the 54th largest in Niassa since 2016 (of 577 with a page). Number 42 in Mozambique in 2025, of 313.
- Burnt area
- 10,627ha
- GWIS perimeter (Copernicus)
- Duration
- 7days
- 9 Sept 2025 – 15 Sept 2025
- Municipalities hit
- 1
- districts
- Started on
- 9 Sept
- 2025
- Heat detections
- 228
- in a single hotspot: 36 MW
- Danger at start
- 35
- High · FWI index
- Average daily power
- 166MW
- detected power per day, on average
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
94% of the perimeter overlaps earlier fires recorded since 2016: 3,469 ha in 2016, 1,102 ha in 2017, 3,098 ha in 2018, 2,343 ha in 2019, 9 ha in 2020, 7,172 ha in 2021, 306 ha in 2022, 3,679 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 9,966 ha that had burned before.
- 7,172 ha Mecula fire, August 2021 28,669 ha in total; the hectares shown are those it shares with this fire
- 2,238 ha Mecula fire, August 2016 8,685 ha in total; the hectares shown are those it shares with this fire
- 1,532 ha Mecula fire, August 2019 3,638 ha in total; the hectares shown are those it shares with this fire
- 955 ha Mecula fire, August 2016 3,230 ha in total; the hectares shown are those it shares with this fire
- 811 ha Mecula fire, August 2019 5,483 ha in total; the hectares shown are those it shares with this fire
- 122 ha Mecula fire, August 2017 4,663 ha in total; the hectares shown are those it shares with this fire
- 9 ha Mecula fire, August 2020 6,791 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Mecula where it started10,693 ha reached on 9 Sept0.6 %
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) |
|---|---|---|---|---|---|
| 9 Sept | 32.0 °C | 34 % | 30 km/h | 0.2 mm | High 35 |
| 10 Sept | 32.8 °C | 28 % | 37 km/h | 0.0 mm | High 37 |
| 11 Sept | 30.8 °C | 31 % | 39 km/h | 0.0 mm | Very high 38 |
| 12 Sept | 31.8 °C | 25 % | 31 km/h | 0.0 mm | High 35 |
| 13 Sept | 32.6 °C | 24 % | 28 km/h | 0.0 mm | High 36 |
| 14 Sept | 32.4 °C | 31 % | 26 km/h | 0.0 mm | Very high 38 |
| 15 Sept | 31.0 °C | 39 % | 29 km/h | 0.1 mm | High 34 |
| 16 Sept after | 31.7 °C | 35 % | 28 km/h | 0.1 mm | High 34 |
| 17 Sept after | 33.1 °C | 29 % | 31 km/h | 0.0 mm | High 35 |
| 18 Sept after | 31.7 °C | 43 % | 31 km/h | 0.5 mm | High 31 |
| 19 Sept after | 33.9 °C | 30 % | 34 km/h | 0.0 mm | High 34 |
| 20 Sept after | 32.5 °C | 31 % | 37 km/h | 0.6 mm | High 34 |
| 21 Sept after | 34.3 °C | 24 % | 33 km/h | 0.0 mm | High 36 |
| 22 Sept after | 33.5 °C | 30 % | 27 km/h | 0.0 mm | Very high 38 |
| 23 Sept after | 32.8 °C | 30 % | 33 km/h | 0.0 mm | Very high 40 |
| 24 Sept after | 32.4 °C | 30 % | 33 km/h | 0.0 mm | Very high 40 |
| 25 Sept after | 32.9 °C | 27 % | 28 km/h | 0.0 mm | Very high 40 |
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 15 September 2025 the air beside the fire reached 22 µg/m³ of PM2.5, but no daily average passed the WHO 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 · 228Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 28,669 haMecula29 August 2021 · 14 days · 8 km away
- 31,277 haMecula19 September 2022 · 39 days · 16 km away
- 14,868 haMecula12 October 2018 · 17 days · 20 km away
- 15,400 haMecula1 November 2021 · 19 days · 27 km away
- 39,524 haMecula17 October 2025 · 18 days · 34 km away
- 16,120 haMecula30 July 2018 · 15 days · 37 km away
Frequently asked questions
- How long did the Mecula fire last?
- GWIS (Copernicus) dates it between 9 September 2025 and 15 September 2025: 7 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 10,627 hectares (106.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Mecula (10,693 ha, 0.6 %).
- What was the weather like?
- During the fire the temperature reached 32.8 °C, humidity dropped to 24 % and gusts hit 39 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.
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 (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.