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Manyoni fire, 18 July 2025 Manyoni

Out · last detection 23 Jul 2025, 10:51 UTC

The fire started on 18 July 2025 in Manyoni, Tanzania, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,025 hectares from heat detections, spread across a single municipality.

It is the 41th largest in Singida since 2016 (of 124 with a page). Number 66 in Tanzania in 2025, of 161.

Burnt area
5,025ha
GWIS perimeter (Copernicus)
Duration
6days
18 Jul 2025 – 23 Jul 2025
Municipalities hit
1
districts
Started on
18 Jul
2025
Heat detections
194
in a single hotspot: 54 MW
Danger at start
32
High · FWI index
Energy released
1.3GW
sum of detected power

Where it burned

23 Jul 2025
HOTSPOTS BY DAY 18 Jul23 Jul

How it evolved, day by day

181920212223

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

The weather it burned in

26°high
41km/h · peak gust
31%lowest humidity

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

This area had burned before

68% of the perimeter overlaps earlier fires recorded since 2016: 494 ha in 2016, 1,890 ha in 2017, 461 ha in 2018, 1,814 ha in 2019, 583 ha in 2020, 440 ha in 2022, 1,570 ha in 2023, 651 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 3,401 ha that had burned before.

What happened to each town

  1. Manyoni where it started
    5,060 ha reached on 18 Jul
    0.2 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre 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 26.4 °C 36 % 36 km/h 0.0 mm High 32
19 Jul 25.0 °C 37 % 40 km/h 0.0 mm High 35
20 Jul 24.9 °C 31 % 40 km/h 0.0 mm High 34
21 Jul 24.6 °C 34 % 35 km/h 0.0 mm High 32
22 Jul 25.4 °C 36 % 40 km/h 0.0 mm High 34
23 Jul 24.3 °C 41 % 41 km/h 0.0 mm High 33
24 Jul after 25.4 °C 37 % 38 km/h 0.0 mm High 32
25 Jul after 26.0 °C 34 % 38 km/h 0.0 mm High 32
26 Jul after 26.1 °C 32 % 40 km/h 0.0 mm High 33
27 Jul after 25.3 °C 33 % 42 km/h 0.0 mm High 34
28 Jul after 24.8 °C 31 % 44 km/h 0.0 mm High 35
29 Jul after 24.4 °C 31 % 45 km/h 0.0 mm High 36
30 Jul after 24.4 °C 29 % 45 km/h 0.0 mm High 36
31 Jul after 24.8 °C 32 % 41 km/h 0.0 mm High 35
1 Aug after 25.5 °C 35 % 39 km/h 0.0 mm High 34
2 Aug after 26.0 °C 30 % 37 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 2025
After · 30 Jul 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 19 July 2025 the air beside the fire reached 21 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak21 µg/m³
Days over the guideline0 days
PM1022 µg/m³
Optical depth0.56
1617181920212223242526
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 · 194Every 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 Manyoni fire last?
GWIS (Copernicus) dates it between 18 July 2025 and 23 July 2025: 6 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 5,025 hectares (50.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Manyoni (5,060 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 26.4 °C, humidity dropped to 31 % and gusts hit 41 km/h. The fire danger index (FWI) reached 35, class 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

Satellite cross-check

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.

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.