Bariadi fire, 17 June 2026 Bariadi
The fire started on 17 June 2026 in Bariadi, Tanzania, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,702 hectares from heat detections, spread across a single municipality.
It is the 51th largest in Simiyu since 2016 (of 68 with a page). Number 123 in Tanzania in 2026, of 200.
- Burnt area
- 3,702ha
- GWIS perimeter (Copernicus)
- Duration
- 5days
- 17 Jun 2026 – 21 Jun 2026
- Municipalities hit
- 1
- districts
- Started on
- 17 Jun
- 2026
- Heat detections
- 110
- in a single hotspot: 66 MW
- Danger at start
- 34
- High · FWI index
- Average daily power
- 197MW
- detected power per day, on average
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 24 days without rain (1 mm or more) when it started.
This area had burned before
46% of the perimeter overlaps earlier fires recorded since 2016: 151 ha in 2016, 914 ha in 2018, 598 ha in 2020, 943 ha in 2021, 78 ha in 2023, 555 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 1,716 ha that had burned before.
- 307 ha Serengeti fire, July 2020 16,712 ha in total; the hectares shown are those it shares with this fire
- 291 ha Bariadi fire, July 2020 4,164 ha in total; the hectares shown are those it shares with this fire
- 128 ha Bariadi fire, July 2021 8,166 ha in total; the hectares shown are those it shares with this fire
- 78 ha Serengeti fire, July 2023 3,330 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Bariadi where it started3,727 ha reached on 17 Jun0.7 %
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) |
|---|---|---|---|---|---|
| 17 Jun | 28.1 °C | 32 % | 39 km/h | 0.0 mm | High 34 |
| 18 Jun | 26.9 °C | 39 % | 37 km/h | 0.1 mm | High 30 |
| 19 Jun | 27.5 °C | 39 % | 33 km/h | 0.0 mm | High 29 |
| 20 Jun | 27.0 °C | 38 % | 40 km/h | 0.0 mm | High 32 |
| 21 Jun | 27.7 °C | 34 % | 40 km/h | 0.0 mm | High 32 |
| 22 Jun after | 26.2 °C | 41 % | 35 km/h | 0.1 mm | High 29 |
| 23 Jun after | 27.5 °C | 36 % | 32 km/h | 0.0 mm | High 28 |
| 24 Jun after | 26.9 °C | 39 % | 31 km/h | 0.2 mm | High 28 |
| 25 Jun after | 29.0 °C | 28 % | 27 km/h | 0.0 mm | High 29 |
| 26 Jun after | 28.9 °C | 25 % | 27 km/h | 0.0 mm | High 33 |
| 27 Jun after | 28.4 °C | 27 % | 28 km/h | 0.0 mm | High 32 |
| 28 Jun after | 28.2 °C | 31 % | 30 km/h | 0.0 mm | High 34 |
| 29 Jun after | 29.5 °C | 30 % | 31 km/h | 0.1 mm | High 34 |
| 30 Jun after | 28.0 °C | 36 % | 34 km/h | 0.0 mm | High 33 |
| 1 Jul after | 27.5 °C | 35 % | 34 km/h | 0.1 mm | High 33 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 22 June 2026 the air beside the fire reached 44 µg/m³ of PM2.5. That day averaged 21: 1.4 times the WHO daily guideline (15).
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.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 16,712 haSerengeti17 July 2020 · 10 days · 12 km away
- 13,929 haBariadiSeptember 2020 · 11 days · 18 km away
- 33,514 haSerengeti25 June 2020 · 18 days · 28 km away
- 15,533 haBariadi3 July 2020 · 13 days · 30 km away
- 18,907 haItilimaAugust 2025 · 15 days · 31 km away
- 15,277 haItilimaJuly 2019 · 8 days · 32 km away
Frequently asked questions
- How long did the Bariadi fire last?
- GWIS (Copernicus) dates it between 17 June 2026 and 21 June 2026: 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 3,702 hectares (37.0 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Bariadi (3,727 ha, 0.7 %).
- What was the weather like?
- During the fire the temperature reached 28.1 °C, humidity dropped to 32 % and gusts hit 40 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 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
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.