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Gorongosa fire, October 2023 Gorongosa

Out · last detection 14 Oct 2023, 11:37 UTC

The fire started on 5 October 2023 in Gorongosa, Mozambique, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 11,598 hectares from heat detections, spread across a single municipality.

It is the 24th largest in Sofala since 2016 (of 214 with a page). Number 13 in Mozambique in 2023, of 128.

Compare with…
Burnt area
11,598ha
GWIS perimeter (Copernicus)
Duration
10days
5 Oct 2023 – 14 Oct 2023
Municipalities hit
1
districts
Started on
5 Oct
2023
Heat detections
495
in a single hotspot: 38 MW
Danger at start
24
High · FWI index
Average daily power
291MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 5 Oct14 Oct
14 Oct 2023

How it evolved, day by day

5 Oct 2023 · 208 MW · 28 6 Oct 2023 · 42 MW · 15 7 Oct 2023 · 276 MW · 40 8 Oct 2023 · 147 MW · 31 9 Oct 2023 · 130 MW · 25 10 Oct 2023 · 314 MW · 31 11 Oct 2023 · 231 MW · 46 12 Oct 2023 · 176 MW · 46 13 Oct 2023 · 595 MW · 100 14 Oct 2023 · 794 MW · 98
5 Oct 7 Oct 9 Oct 11 Oct 13 Oct 14 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

42°high
48km/h · peak gust
19%lowest humidity

It had gone 10 days without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 15 Oct.

This area had burned before

95% of the perimeter overlaps earlier fires recorded since 2016: 2,407 ha in 2017, 5,245 ha in 2018, 4,239 ha in 2019, 2,310 ha in 2020, 4,253 ha in 2021, 8,020 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 11,038 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 7.3% of the area of London (116 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. Gorongosa where it started
    11,678 ha reached on 30 Sept
    1.7 %

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.

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)
30 Sept 36.3 °C 36 % 26 km/h 0.0 mm High 24
1 Oct 40.7 °C 19 % 46 km/h 0.2 mm Extreme 51
2 Oct 25.1 °C 63 % 48 km/h 0.7 mm High 23
3 Oct 28.8 °C 37 % 35 km/h 0.0 mm High 23
4 Oct 31.2 °C 32 % 28 km/h 0.0 mm High 28
5 Oct 34.4 °C 32 % 35 km/h 0.0 mm High 34
6 Oct 35.9 °C 30 % 33 km/h 0.0 mm High 36
7 Oct 37.6 °C 30 % 36 km/h 0.0 mm High 34
8 Oct 39.2 °C 27 % 35 km/h 0.0 mm Very high 42
9 Oct 33.7 °C 41 % 32 km/h 1.9 mm Moderate 18
10 Oct 34.2 °C 36 % 36 km/h 0.0 mm High 30
11 Oct 34.1 °C 34 % 34 km/h 0.0 mm High 31
12 Oct 37.7 °C 27 % 33 km/h 0.0 mm Very high 39
13 Oct 41.8 °C 20 % 29 km/h 0.0 mm Very high 40
14 Oct 37.2 °C 31 % 44 km/h 0.0 mm Very high 47
15 Oct after 26.3 °C 75 % 40 km/h 1.5 mm Low 10

Before and after, from space

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

Before · 28 Sept 2023
After · 21 Oct 2023

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 4 October 2023 the air beside the fire reached 90 µg/m³ of PM2.5. That day averaged 33: 2.2 times the WHO daily guideline (15).

PM2.5 peak90 µg/m³
Days over the guideline8 days
PM10132 µg/m³
Optical depth1.15
34567891011121314151617
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 · 495Every 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 Gorongosa fire last?
GWIS (Copernicus) dates it between 5 October 2023 and 14 October 2023: 10 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 11,598 hectares (116.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Gorongosa (11,678 ha, 1.7 %).
What was the weather like?
During the fire the temperature reached 41.8 °C, humidity dropped to 19 % and gusts hit 48 km/h. The fire danger index (FWI) reached 51, class Extreme.
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.

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.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 495 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.

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.