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Mavago fire, 18 September 2020 Mavago, Mecula

Out · last detection 11 Oct 2020, 11:25 UTC

The fire started on 18 September 2020 in Mavago, Mozambique, and satellites saw it burning for 24 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 27,813 hectares from heat detections, spread across 2 municipalities.

It is the 11th largest in Niassa since 2016 (of 589 with a page). Number 6 in Mozambique in 2020, of 193.

Compare with…
Burnt area
27,813ha
GWIS perimeter (Copernicus)
Duration
24days
18 Sept 2020 – 11 Oct 2020
Municipalities hit
2
districts
Started on
18 Sept
2020
Heat detections
950
in a single hotspot: 112 MW
Danger at start
33
High · FWI index
Average daily power
260MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 18 Sept11 Oct
11 Oct 2020

How it evolved, day by day

18 Sept 2020 · 7 MW · 1 19 Sept 2020 · 225 MW · 19 20 Sept 2020 · 11 MW · 6 21 Sept 2020 · 40 MW · 7 22 Sept 2020 · 60 MW · 9 23 Sept 2020 · 180 MW · 45 24 Sept 2020 · 903 MW · 135 25 Sept 2020 · 223 MW · 55 26 Sept 2020 · 382 MW · 75 27 Sept 2020 · 222 MW · 38 28 Sept 2020 · 26 MW · 14 29 Sept 2020 · 371 MW · 80 30 Sept 2020 · 666 MW · 116 1 Oct 2020 · 776 MW · 99 2 Oct 2020 · 963 MW · 66 3 Oct 2020 · 194 MW · 38 4 Oct 2020 · 337 MW · 66 5 Oct 2020 · 309 MW · 57 6 Oct 2020 · 47 MW · 12 7 Oct 2020 · 11 MW · 2 9 Oct 2020 · 4 MW · 3 10 Oct 2020 · 1 MW · 2 11 Oct 2020 · 26 MW · 5
18 Sept 22 Sept 26 Sept 30 Sept 2 Oct 4 Oct 9 Oct

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
25%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 4.4 mm on 13 Oct.

This area had burned before

58% of the perimeter overlaps earlier fires recorded since 2016: 7,266 ha in 2016, 4,604 ha in 2017, 9,082 ha in 2018, 159 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 16,114 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 18% of the area of London (278 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. Mavago where it started
    16,732 ha reached on 18 Sept
    1.8 %
  2. 11,275 ha reached on 23 Sept
    0.6 %

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 2020
Built-up area< 0.1 ha
Residents< 20

Inside 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)
18 Sept 29.7 °C 29 % 32 km/h 0.0 mm High 33
19 Sept 30.1 °C 25 % 35 km/h 0.0 mm High 31
20 Sept 29.1 °C 35 % 34 km/h 0.0 mm High 30
21 Sept 28.7 °C 34 % 30 km/h 0.0 mm High 31
22 Sept 30.4 °C 29 % 37 km/h 0.0 mm High 32
23 Sept 27.7 °C 35 % 38 km/h 0.0 mm High 32
24 Sept 29.7 °C 28 % 27 km/h 0.0 mm High 29
25 Sept 28.4 °C 36 % 32 km/h 0.0 mm High 30
26 Sept 31.3 °C 28 % 32 km/h 0.0 mm High 33
27 Sept 30.5 °C 32 % 38 km/h 0.0 mm High 34
28 Sept 28.6 °C 40 % 34 km/h 0.0 mm High 30
29 Sept 30.7 °C 34 % 31 km/h 0.0 mm High 29
30 Sept 31.0 °C 29 % 35 km/h 0.0 mm High 32
1 Oct 32.5 °C 28 % 31 km/h 0.0 mm High 34
2 Oct 33.1 °C 25 % 32 km/h 0.0 mm High 36
3 Oct 32.1 °C 27 % 40 km/h 0.0 mm High 36
4 Oct 33.5 °C 29 % 34 km/h 0.0 mm High 35
5 Oct 33.4 °C 29 % 30 km/h 0.0 mm High 35
6 Oct 30.9 °C 42 % 30 km/h 0.0 mm High 30
7 Oct 27.7 °C 53 % 31 km/h 0.8 mm Moderate 18
8 Oct 29.5 °C 47 % 36 km/h 0.5 mm High 23
9 Oct 30.8 °C 43 % 30 km/h 0.0 mm High 23
10 Oct 32.7 °C 37 % 34 km/h 0.3 mm High 28
11 Oct 34.1 °C 27 % 34 km/h 0.0 mm High 36
12 Oct after 31.3 °C 44 % 35 km/h 0.8 mm High 25
13 Oct after 27.8 °C 54 % 30 km/h 4.4 mm Low 6

Before and after, from space

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

Before · 11 Sept 2020
After · 18 Oct 2020

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 · 950Every 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 Mavago fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 18 September 2020 to 11 October 2020 (24 days). The perimeter dates it from 19 September 2020 to 9 October 2020.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 27,813 hectares (278.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Mavago (16,732 ha, 1.8 %); Mecula (11,275 ha, 0.6 %).
What was the weather like?
During the fire the temperature reached 34.1 °C, humidity dropped to 25 % and gusts hit 40 km/h. The fire danger index (FWI) reached 36, 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 9 October 2020 → 11 October 2020.
  2. Start date: 19 September 2020 → 18 September 2020.

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; 2 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 19 September 2020 to 9 October 2020. 950 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.

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.