Mecula fire, 29 August 2021 Mecula
The fire started on 29 August 2021 in Mecula, Mozambique, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 28,669 hectares from heat detections, spread across a single municipality.
It is the 7th largest in Niassa since 2016 (of 580 with a page). The largest in Mozambique in 2021, of 233.
Compare with…
Suggestions: Mecula · 2016Mecula · 2017Mecula · 2019Mecula · 2017
- Burnt area
- 28,669ha
- GWIS perimeter (Copernicus)
- Duration
- 14days
- 29 Aug 2021 – 11 Sept 2021
- Municipalities hit
- 1
- districts
- Started on
- 29 Aug
- 2021
- Heat detections
- 1,059
- in a single hotspot: 217 MW
- Danger at start
- 34
- High · FWI index
- Average daily power
- 473MW
- 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 48 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 19 Sept.
This area had burned before
68% of the perimeter overlaps earlier fires recorded since 2016: 8,731 ha in 2016, 9,558 ha in 2017, 6,278 ha in 2018, 6,610 ha in 2019, 2,381 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 19,479 ha that had burned before.
- 4,396 ha Mecula fire, August 2016 8,685 ha in total; the hectares shown are those it shares with this fire
- 3,317 ha Mecula fire, August 2017 4,523 ha in total; the hectares shown are those it shares with this fire
- 3,083 ha Mecula fire, August 2019 5,483 ha in total; the hectares shown are those it shares with this fire
- 2,495 ha Mecula fire, August 2017 4,663 ha in total; the hectares shown are those it shares with this fire
- 2,298 ha Mecula fire, August 2019 3,638 ha in total; the hectares shown are those it shares with this fire
- 2,064 ha Mecula fire, August 2020 11,391 ha in total; the hectares shown are those it shares with this fire
- 1,814 ha Mecula fire, August 2018 5,845 ha in total; the hectares shown are those it shares with this fire
- 1,697 ha Mecula fire, September 2017 10,632 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Mecula where it started28,843 ha reached on 29 Aug1.6 %
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 2020Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, 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.
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) |
|---|---|---|---|---|---|
| 29 Aug | 31.9 °C | 29 % | 33 km/h | 0.0 mm | High 34 |
| 30 Aug | 30.5 °C | 32 % | 37 km/h | 0.0 mm | High 35 |
| 31 Aug | 31.7 °C | 30 % | 27 km/h | 0.0 mm | High 32 |
| 1 Sept | 29.7 °C | 40 % | 30 km/h | 0.3 mm | High 31 |
| 2 Sept | 30.6 °C | 31 % | 32 km/h | 0.1 mm | High 31 |
| 3 Sept | 29.9 °C | 30 % | 36 km/h | 0.2 mm | High 32 |
| 4 Sept | 30.8 °C | 21 % | 33 km/h | 0.0 mm | Very high 38 |
| 5 Sept | 29.5 °C | 35 % | 28 km/h | 0.0 mm | High 34 |
| 6 Sept | 29.9 °C | 33 % | 28 km/h | 0.0 mm | High 35 |
| 7 Sept | 29.4 °C | 36 % | 29 km/h | 0.0 mm | High 35 |
| 8 Sept | 31.4 °C | 29 % | 30 km/h | 0.0 mm | High 34 |
| 9 Sept | 30.5 °C | 35 % | 35 km/h | 0.1 mm | High 33 |
| 10 Sept | 30.8 °C | 23 % | 37 km/h | 0.0 mm | High 38 |
| 11 Sept | 29.7 °C | 27 % | 33 km/h | 0.0 mm | High 38 |
| 12 Sept after | 30.6 °C | 31 % | 35 km/h | 0.0 mm | High 37 |
| 13 Sept after | 30.8 °C | 32 % | 33 km/h | 0.0 mm | High 38 |
| 14 Sept after | 31.4 °C | 29 % | 29 km/h | 0.0 mm | High 37 |
| 15 Sept after | 30.3 °C | 35 % | 30 km/h | 0.0 mm | High 34 |
| 16 Sept after | 30.5 °C | 40 % | 33 km/h | 0.0 mm | High 34 |
| 17 Sept after | 32.0 °C | 37 % | 29 km/h | 0.0 mm | High 31 |
| 18 Sept after | 31.1 °C | 43 % | 36 km/h | 0.0 mm | High 33 |
| 19 Sept after | 28.8 °C | 45 % | 35 km/h | 1.2 mm | Moderate 19 |
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.
Detections table · 1,059Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 31,277 haMecula19 September 2022 · 39 days · 16 km away
- 12,038 haMecula20 August 2016 · 10 days · 20 km away
- 15,400 haMecula1 November 2021 · 19 days · 24 km away
- 12,474 haMecula22 September 2018 · 7 days · 25 km away
- 14,868 haMecula12 October 2018 · 17 days · 27 km away
- 16,120 haMecula30 July 2018 · 15 days · 34 km away
Frequently asked questions
- How long did the Mecula fire last?
- GWIS (Copernicus) dates it between 29 August 2021 and 11 September 2021: 14 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 28,669 hectares (286.7 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Mecula (28,843 ha, 1.6 %).
- What was the weather like?
- During the fire the temperature reached 31.9 °C, humidity dropped to 21 % and gusts hit 37 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
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.
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
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 1,059 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 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
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.