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Mansa fire, 18 July 2026 Mansa

Out · last detection 29 Jul 2026, 11:45 UTC

The fire started on 18 July 2026 in Mansa, Zambia, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,536 hectares from heat detections, spread across a single municipality.

It is the 155th largest in Luapula since 2016 (of 533 with a page). Number 106 in Zambia in 2026, of 610.

Compare with…
Burnt area
8,536ha
GWIS perimeter (Copernicus)
Duration
12days
18 Jul 2026 – 29 Jul 2026
Municipalities hit
1
districts
Started on
18 Jul
2026
Heat detections
157
in a single hotspot: 60 MW
Danger at start
33
High · FWI index
Average daily power
91MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 18 Jul29 Jul
29 Jul 2026

How it evolved, day by day

18 Jul 2026 · 187 MW · 24 19 Jul 2026 · 134 MW · 20 20 Jul 2026 · 64 MW · 12 21 Jul 2026 · 210 MW · 17 22 Jul 2026 · 37 MW · 5 23 Jul 2026 · 93 MW · 16 24 Jul 2026 · 86 MW · 17 25 Jul 2026 · 51 MW · 7 26 Jul 2026 · 25 MW · 9 28 Jul 2026 · 94 MW · 11 29 Jul 2026 · 16 MW · 4
18 Jul 20 Jul 21 Jul 22 Jul 24 Jul 26 Jul 29 Jul

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

29°high
41km/h · peak gust
28%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

98% of the perimeter overlaps earlier fires recorded since 2016: 4,651 ha in 2016, 3,163 ha in 2017, 3,042 ha in 2018, 4,258 ha in 2019, 5,831 ha in 2020, 1,223 ha in 2021, 2,345 ha in 2022, 3,788 ha in 2023, 3,763 ha in 2024, 1,836 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 8,365 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 5.4% of the area of London (85 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. Mansa where it started
    8,568 ha reached on 16 Jul
    1.1 %

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)
18 Jul 25.0 °C 31 % 30 km/h 0.0 mm High 33
19 Jul 26.4 °C 28 % 27 km/h 0.0 mm High 31
20 Jul 27.6 °C 29 % 21 km/h 0.0 mm High 30
21 Jul 28.6 °C 29 % 18 km/h 0.0 mm High 31
22 Jul 28.1 °C 34 % 27 km/h 0.0 mm High 34
23 Jul 28.0 °C 40 % 32 km/h 0.0 mm High 31
24 Jul 27.6 °C 37 % 29 km/h 0.0 mm High 32
25 Jul 27.1 °C 32 % 41 km/h 0.0 mm High 34
26 Jul 26.0 °C 36 % 40 km/h 0.0 mm High 34
27 Jul 25.8 °C 40 % 34 km/h 0.0 mm High 32
28 Jul 27.0 °C 33 % 27 km/h 0.0 mm High 29
29 Jul 27.5 °C 33 % 32 km/h 0.0 mm High 31
30 Jul after 27.5 °C 30 % 31 km/h 0.0 mm High 32
31 Jul after 27.1 °C 26 % 35 km/h 0.0 mm High 34
1 Aug after 25.0 °C 27 % 39 km/h 0.0 mm High 36
2 Aug after 24.8 °C 32 % 34 km/h 0.0 mm High 34
3 Aug after 25.2 °C 35 % 31 km/h 0.0 mm High 33
4 Aug after 26.2 °C 34 % 32 km/h 0.0 mm High 33
5 Aug after 26.7 °C 33 % 30 km/h 0.0 mm High 32
6 Aug after 27.1 °C 36 % 30 km/h 0.0 mm High 33
7 Aug after 27.7 °C 38 % 29 km/h 0.0 mm High 32
8 Aug after 27.5 °C 39 % 36 km/h 0.0 mm High 33

Before and after, from space

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

Before · 11 Jul 2026
After · 5 Aug 2026

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 21 July 2026 the air beside the fire reached 67 µg/m³ of PM2.5. That day averaged 50: 3.4 times the WHO daily guideline (15).

PM2.5 peak67 µg/m³
Days over the guideline17 days
PM1070 µg/m³
Optical depth0.74
161718192021222324252627282930311
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 · 157Every 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 Zambia ›

Frequently asked questions

How long did the Mansa fire last?
GWIS (Copernicus) dates it between 18 July 2026 and 29 July 2026: 12 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 8,536 hectares (85.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mansa (8,568 ha, 1.1 %).
What was the weather like?
During the fire the temperature reached 28.6 °C, humidity dropped to 28 % and gusts hit 41 km/h. The fire danger index (FWI) reached 34, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Zambia (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. 157 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 4.0 (CC BY 4.0)). 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.