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Mbarali fire, October 2025 Mbarali

Out · last detection 16 Oct 2025, 10:59 UTC

The fire started on 11 October 2025 in Mbarali, Tanzania, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,686 hectares from heat detections, spread across a single municipality.

It is the 98th largest in Mbeya since 2016 (of 147 with a page). Number 108 in Tanzania in 2025, of 161.

Compare with…
Burnt area
3,686ha
GWIS perimeter (Copernicus)
Duration
5days
11 Oct 2025 – 15 Oct 2025
Municipalities hit
1
districts
Started on
11 Oct
2025
Heat detections
110
in a single hotspot: 32 MW
Danger at start
39
Very high · FWI index
Average daily power
128MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 11 Oct15 Oct
16 Oct 2025

How it evolved, day by day

11 Oct 2025 · 147 MW · 15 12 Oct 2025 · 205 MW · 35 13 Oct 2025 · 148 MW · 28 14 Oct 2025 · 172 MW · 19 15 Oct 2025 · 69 MW · 11 16 Oct 2025 · 25 MW · 2
11 Oct 12 Oct 13 Oct 14 Oct 15 Oct 16 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
42km/h · peak gust
17%lowest humidity

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

This area had burned before

92% of the perimeter overlaps earlier fires recorded since 2016: 1,689 ha in 2016, 1,219 ha in 2017, 1,355 ha in 2019, 1,850 ha in 2021, 30 ha in 2023, 582 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 3,402 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.3% of the area of London (37 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. Mbarali where it started
    3,708 ha reached on 11 Oct
    0.3 %

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)
11 Oct 33.1 °C 19 % 28 km/h 0.0 mm Very high 39
12 Oct 32.5 °C 19 % 30 km/h 0.0 mm Very high 42
13 Oct 33.6 °C 17 % 42 km/h 0.0 mm Very high 49
14 Oct 32.5 °C 22 % 29 km/h 0.0 mm Very high 43
15 Oct 32.6 °C 22 % 28 km/h 0.0 mm Very high 45
16 Oct after 33.6 °C 22 % 23 km/h 0.0 mm Very high 44
17 Oct after 34.0 °C 17 % 46 km/h 0.0 mm Extreme 54
18 Oct after 32.6 °C 21 % 38 km/h 0.0 mm Extreme 52
19 Oct after 33.6 °C 18 % 38 km/h 0.0 mm Extreme 50
20 Oct after 32.9 °C 18 % 36 km/h 0.0 mm Extreme 53
21 Oct after 32.9 °C 21 % 38 km/h 0.0 mm Very high 49
22 Oct after 33.2 °C 23 % 34 km/h 0.0 mm Very high 46
23 Oct after 32.1 °C 25 % 36 km/h 0.0 mm Very high 42
24 Oct after 33.5 °C 24 % 29 km/h 0.0 mm Very high 43
25 Oct after 34.1 °C 19 % 33 km/h 0.0 mm Very high 43

Before and after, from space

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

Before · 4 Oct 2025
After · 22 Oct 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 13 October 2025 the air beside the fire reached 26 µg/m³ of PM2.5. That day averaged 20: 1.3 times the WHO daily guideline (15).

PM2.5 peak26 µg/m³
Days over the guideline1 day
PM1026 µg/m³
Optical depth0.48
9101112131415161718
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 · 110Every 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 Tanzania ›

Frequently asked questions

How long did the Mbarali fire last?
GWIS (Copernicus) dates it between 11 October 2025 and 15 October 2025: 5 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 3,686 hectares (36.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mbarali (3,708 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 33.6 °C, humidity dropped to 17 % and gusts hit 42 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 Tanzania (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.

Emergency number: 112 · Emergency number and official warnings ›

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 112.

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. 110 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.