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MZ · Mozambique · –

Namacurra fire, September 2020 Namacurra, Mocuba

Out · last detection 30 Sept 2020, 11:30 UTC

The fire started on 8 September 2020 in Namacurra, Mozambique, and satellites saw it burning for 23 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 15,311 hectares from heat detections, spread across 2 municipalities.

It is the 58th largest in Zambézia since 2016 (of 564 with a page). Number 15 in Mozambique in 2020, of 193.

Burnt area
15,311ha
GWIS perimeter (Copernicus)
Duration
23days
8 Sept 2020 – 30 Sept 2020
Municipalities hit
2
districts
Started on
8 Sept
2020
Heat detections
986
in a single hotspot: 65 MW
Danger at start
25
High · FWI index
Average daily power
314MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 8 Sept30 Sept
30 Sept 2020

How it evolved, day by day

8 Sept 2020 · 2 MW · 1 9 Sept 2020 · 127 MW · 8 10 Sept 2020 · 242 MW · 35 11 Sept 2020 · 78 MW · 5 12 Sept 2020 · 50 MW · 4 13 Sept 2020 · 26 MW · 5 14 Sept 2020 · 344 MW · 43 15 Sept 2020 · 1,133 MW · 167 16 Sept 2020 · 316 MW · 47 17 Sept 2020 · 1,601 MW · 236 18 Sept 2020 · 207 MW · 25 19 Sept 2020 · 367 MW · 63 20 Sept 2020 · 170 MW · 32 21 Sept 2020 · 1,085 MW · 143 23 Sept 2020 · 8 MW · 1 24 Sept 2020 · 12 MW · 4 25 Sept 2020 · 120 MW · 23 26 Sept 2020 · 460 MW · 54 27 Sept 2020 · 346 MW · 48 28 Sept 2020 · 122 MW · 20 29 Sept 2020 · 34 MW · 5 30 Sept 2020 · 52 MW · 17
8 Sept 13 Sept 17 Sept 24 Sept 29 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

40°high
49km/h · peak gust
17%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started.

This area had burned before

83% of the perimeter overlaps earlier fires recorded since 2016: 3,895 ha in 2016, 3,848 ha in 2017, 7,273 ha in 2018, 8,767 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 12,735 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 9.7% of the area of London (153 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. Namacurra where it started
    11,440 ha reached on 8 Sept
    5.6 %
  2. 3,957 ha reached on 9 Sept
    0.4 %

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 area8.8 ha
Residents≈ 1,300

Inside the perimeter there were about 8.8 hectares of built-up land and about 1,300 residents (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)
8 Sept 28.1 °C 32 % 37 km/h 0.0 mm High 25
9 Sept 29.4 °C 36 % 38 km/h 0.0 mm High 26
10 Sept 29.5 °C 42 % 35 km/h 0.0 mm High 26
11 Sept 28.9 °C 49 % 36 km/h 0.3 mm High 23
12 Sept 29.8 °C 45 % 35 km/h 0.2 mm High 24
13 Sept 31.0 °C 45 % 30 km/h 0.0 mm High 23
14 Sept 33.8 °C 36 % 28 km/h 0.0 mm High 26
15 Sept 37.0 °C 27 % 34 km/h 0.0 mm High 32
16 Sept 36.2 °C 25 % 40 km/h 0.0 mm High 35
17 Sept 37.5 °C 24 % 40 km/h 0.0 mm Very high 40
18 Sept 33.1 °C 34 % 36 km/h 0.0 mm High 35
19 Sept 33.8 °C 30 % 31 km/h 0.0 mm High 34
20 Sept 33.6 °C 32 % 37 km/h 0.0 mm High 37
21 Sept 36.1 °C 20 % 40 km/h 0.0 mm Very high 42
22 Sept 29.3 °C 48 % 47 km/h 0.0 mm High 31
23 Sept 28.5 °C 50 % 43 km/h 1.7 mm Moderate 14
24 Sept 30.1 °C 40 % 33 km/h 0.0 mm High 24
25 Sept 33.9 °C 33 % 32 km/h 0.0 mm High 30
26 Sept 39.1 °C 17 % 34 km/h 0.0 mm Very high 44
27 Sept 40.0 °C 19 % 35 km/h 0.0 mm Very high 45
28 Sept 39.2 °C 25 % 41 km/h 0.0 mm Very high 49
29 Sept 37.6 °C 27 % 45 km/h 0.0 mm Very high 48
30 Sept 34.6 °C 35 % 49 km/h 0.0 mm Very high 42
1 Oct after 36.2 °C 32 % 34 km/h 0.0 mm High 37
2 Oct after 37.3 °C 29 % 45 km/h 0.3 mm Very high 44
3 Oct after 34.9 °C 37 % 40 km/h 0.0 mm Very high 39
4 Oct after 35.6 °C 32 % 42 km/h 0.0 mm Very high 39
5 Oct after 30.6 °C 49 % 39 km/h 0.0 mm High 30
6 Oct after 29.8 °C 47 % 34 km/h 0.1 mm High 29
7 Oct after 27.8 °C 54 % 36 km/h 0.0 mm High 25
8 Oct after 28.9 °C 46 % 29 km/h 0.0 mm High 25
9 Oct after 33.0 °C 37 % 35 km/h 0.0 mm High 30
10 Oct after 38.5 °C 31 % 35 km/h 0.0 mm High 36

Its twins: fires that started in the same weather

It started with an FWI of 25.2, a minimum humidity of 32% and 5 days without rain. Fires in the area that started in weather like this since 2016: 19.

FWI at the start 25.2
Minimum humidity 32 %
Days without rain 5
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Derre fire, September 2021
3,383 ha 5 days FWI 24.9 Min. humidity 32 % 73 km away, in 2021

First rain (1 mm or more) after it ended: 1.3 mm on 10 Sept.

What happened to them

15 days
median duration
4,264 ha
median area
5 %
went past 10,000 ha
2.8 mm
rain at the end (median; 17 of 19 had it)

It was 3.6 times larger than the median of its twins and lasted 23 days, against 15 days.

None of its 19 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 2 of 19, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
49km/h · max. gust

It was considered over on 30 Sept, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 17 of 19, with a median of 2.8 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 1 Sept 2020
After · 7 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 · 986Every 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 Namacurra fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 8 September 2020 to 30 September 2020 (23 days). The perimeter dates it from 12 September 2020 to 23 September 2020.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 15,311 hectares (153.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Namacurra (11,440 ha, 5.6 %); Mocuba (3,957 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 40.0 °C, humidity dropped to 17 % and gusts hit 49 km/h. The fire danger index (FWI) reached 49, 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 19. Their median duration was 15 days and their median area 4,264 ha; 5 % went past 10,000 ha. None of its 19 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 2 of 19, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.

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: 23 September 2020 → 30 September 2020.
  2. Start date: 12 September 2020 → 8 September 2020.

RSS Changes to this page With cross-checks and a citable version

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.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 12 September 2020 to 23 September 2020. 986 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.