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MW · Malawi · –

Nkhata Bay fire, 9 October 2025 Nkhata Bay, Nkhotakota

Out · last detection 7 Nov 2025, 10:45 UTC

The fire started on 9 October 2025 in Nkhata Bay, Malawi, and satellites saw it burning for 30 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 121,322 hectares from heat detections, spread across 2 municipalities.

This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.

Other fire pages in the same area and on the same dates:

The largest in Malawi in 2025, of 76.

GWIS near-real-time perimeter, from the layer that changed in August 2025: this fire is not compared with fires from earlier years, because since then the GWIS layer gives more and larger perimeters.

Burnt area
121,322ha
GWIS perimeter (Copernicus)
Duration
30days
9 Oct 2025 – 7 Nov 2025
Municipalities hit
2
districts
Started on
9 Oct
2025
Heat detections
4,619
in a single hotspot: 533 MW
Danger at start
16
Moderate · FWI index
Average daily power
2.4GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 9 Oct7 Nov
7 Nov 2025

How it evolved, day by day

9 Oct 2025 · 333 MW · 31 10 Oct 2025 · 114 MW · 14 11 Oct 2025 · 184 MW · 22 12 Oct 2025 · 617 MW · 54 13 Oct 2025 · 337 MW · 32 14 Oct 2025 · 397 MW · 45 15 Oct 2025 · 1,459 MW · 79 16 Oct 2025 · 1,796 MW · 87 17 Oct 2025 · 362 MW · 52 18 Oct 2025 · 932 MW · 84 19 Oct 2025 · 1,386 MW · 123 20 Oct 2025 · 5,034 MW · 232 21 Oct 2025 · 1,976 MW · 78 22 Oct 2025 · 777 MW · 68 23 Oct 2025 · 938 MW · 86 24 Oct 2025 · 2,302 MW · 165 25 Oct 2025 · 4,601 MW · 295 26 Oct 2025 · 2,925 MW · 184 27 Oct 2025 · 7,003 MW · 252 28 Oct 2025 · 4,901 MW · 211 29 Oct 2025 · 3,507 MW · 294 30 Oct 2025 · 6,140 MW · 293 31 Oct 2025 · 3,785 MW · 284 1 Nov 2025 · 4,455 MW · 259 2 Nov 2025 · 2,875 MW · 181 3 Nov 2025 · 3,875 MW · 334 4 Nov 2025 · 4,578 MW · 345 5 Nov 2025 · 2,468 MW · 240 6 Nov 2025 · 1,484 MW · 112 7 Nov 2025 · 601 MW · 83
9 Oct 15 Oct 21 Oct 27 Oct 2 Nov

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

The weather it burned in

30°high
50km/h · peak gust
31%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 12.7 mm on 8 Nov.

This area had burned before

74% of the perimeter overlaps earlier fires recorded since 2016: 47,481 ha in 2016, 15,563 ha in 2017, 27,890 ha in 2018, 31,808 ha in 2019, 35,787 ha in 2020, 19,220 ha in 2021, 38,213 ha in 2022, 61,354 ha in 2023, 55,480 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 89,559 ha that had burned before.

How big is it?

20 km
It burned the equivalent of 77% of the area of London (1,213 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. Nkhata Bay where it started
    115,908 ha reached on 9 Oct
    28 %
  2. 8,517 ha reached on 9 Oct
    2.0 %

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 2025
Built-up area210 ha
Residents≈ 31,000

Inside the perimeter there were about 210 hectares of built-up land and about 31,000 residents (GHSL 2025, 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. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

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)
9 Oct 26.5 °C 49 % 39 km/h 0.2 mm Moderate 16
10 Oct 26.6 °C 49 % 37 km/h 0.0 mm Moderate 16
11 Oct 28.0 °C 43 % 33 km/h 0.0 mm Moderate 18
12 Oct 27.0 °C 43 % 31 km/h 0.0 mm Moderate 18
13 Oct 27.3 °C 40 % 34 km/h 0.0 mm Moderate 20
14 Oct 26.4 °C 45 % 35 km/h 0.0 mm Moderate 20
15 Oct 25.9 °C 46 % 31 km/h 0.0 mm Moderate 20
16 Oct 28.0 °C 32 % 30 km/h 0.0 mm High 23
17 Oct 27.4 °C 42 % 33 km/h 0.0 mm High 23
18 Oct 26.1 °C 41 % 37 km/h 0.0 mm High 25
19 Oct 27.5 °C 33 % 30 km/h 0.0 mm High 23
20 Oct 28.0 °C 38 % 32 km/h 0.5 mm High 24
21 Oct 27.4 °C 52 % 37 km/h 0.7 mm Moderate 18
22 Oct 27.7 °C 47 % 34 km/h 0.7 mm Moderate 17
23 Oct 26.6 °C 51 % 30 km/h 0.5 mm Moderate 17
24 Oct 26.9 °C 44 % 32 km/h 0.0 mm Moderate 19
25 Oct 28.4 °C 33 % 32 km/h 0.0 mm High 24
26 Oct 29.5 °C 31 % 31 km/h 0.0 mm High 26
27 Oct 29.1 °C 43 % 36 km/h 0.0 mm High 26
28 Oct 29.1 °C 42 % 34 km/h 0.0 mm High 26
29 Oct 28.5 °C 40 % 35 km/h 0.1 mm High 27
30 Oct 28.6 °C 37 % 34 km/h 0.0 mm High 27
31 Oct 28.9 °C 48 % 39 km/h 0.0 mm High 25
1 Nov 28.9 °C 35 % 34 km/h 0.0 mm High 26
2 Nov 29.0 °C 31 % 35 km/h 0.0 mm High 29
3 Nov 27.9 °C 51 % 50 km/h 0.0 mm High 25
4 Nov 26.8 °C 54 % 40 km/h 0.8 mm Moderate 17
5 Nov 28.8 °C 48 % 33 km/h 0.0 mm Moderate 19
6 Nov 28.4 °C 49 % 36 km/h 0.1 mm Moderate 20
7 Nov 27.5 °C 56 % 36 km/h 5.9 mm Very low 5
8 Nov after 27.5 °C 58 % 32 km/h 12.7 mm Very low 1

Before and after, from space

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

Before · 2 Oct 2025
After · 14 Nov 2025

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 2 November 2025 the air beside the fire reached 42 µg/m³ of PM2.5. That day averaged 27: 1.8 times the WHO daily guideline (15).

PM2.5 peak42 µg/m³
Days over the guideline14 days
PM1045 µg/m³
Optical depth0.53
14 Oct20 Oct26 Oct1 Nov7 Nov
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 · 4,619Every 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 Malawi

Frequently asked questions

How long did the Nkhata Bay fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 9 October 2025 to 7 November 2025 (30 days). The perimeter dates it from 16 October 2025 to 7 November 2025.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 121,322 hectares (1,213.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Nkhata Bay (115,908 ha, 28 %); Nkhotakota (8,517 ha, 2.0 %).
What was the weather like?
During the fire the temperature reached 29.5 °C, humidity dropped to 31 % and gusts hit 50 km/h. The fire danger index (FWI) reached 29, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Malawi (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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 16 October 2025 → 9 October 2025.

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; 11 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 16 October 2025 to 7 November 2025. 4,619 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 2025, 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.