Tsandi fire, September 2025 Tsandi
The fire started on 15 September 2025 in Tsandi, Namibia, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,853 hectares from heat detections, spread across a single municipality.
It is the 14th largest in Omusati since 2016 (of 41 with a page). Number 31 in Namibia in 2025, of 87.
- Burnt area
- 4,853ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 15 Sept 2025 – 18 Sept 2025
- Municipalities hit
- 1
- constituencies
- Started on
- 15 Sept
- 2025
- Heat detections
- 128
- in a single hotspot: 94 MW
- Danger at start
- 73
- Very extreme · FWI index
- Energy released
- 1.8GW
- sum of detected power
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 more than two months without rain (1 mm or more) when it started.
This area had burned before
0% of the perimeter overlaps earlier fires recorded since 2016: 21 ha in 2021.
What happened to each town
-
Tsandi where it started4,883 ha reached on 15 Sept2.1 %
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) |
|---|---|---|---|---|---|
| 15 Sept | 35.3 °C | 9 % | 41 km/h | 0.0 mm | Very extreme 73 |
| 16 Sept | 35.2 °C | 7 % | 32 km/h | 0.0 mm | Extreme 62 |
| 17 Sept | 36.1 °C | 7 % | 37 km/h | 0.0 mm | Extreme 66 |
| 18 Sept | 36.2 °C | 11 % | 37 km/h | 0.0 mm | Extreme 66 |
| 19 Sept after | 36.4 °C | 11 % | 43 km/h | 0.0 mm | Very extreme 76 |
| 20 Sept after | 36.5 °C | 12 % | 53 km/h | 0.0 mm | Very extreme 75 |
| 21 Sept after | 35.6 °C | 15 % | 36 km/h | 0.0 mm | Extreme 65 |
| 22 Sept after | 34.4 °C | 16 % | 44 km/h | 0.0 mm | Extreme 62 |
| 23 Sept after | 35.2 °C | 17 % | 36 km/h | 0.1 mm | Extreme 55 |
| 24 Sept after | 34.5 °C | 14 % | 28 km/h | 0.0 mm | Extreme 54 |
| 25 Sept after | 35.9 °C | 14 % | 31 km/h | 0.0 mm | Extreme 56 |
| 26 Sept after | 33.7 °C | 5 % | 32 km/h | 0.0 mm | Extreme 60 |
| 27 Sept after | 35.0 °C | 5 % | 45 km/h | 0.0 mm | Extreme 69 |
| 28 Sept after | 33.2 °C | 6 % | 31 km/h | 0.0 mm | Extreme 63 |
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 17 September 2025 the air beside the fire reached 34 µg/m³ of PM2.5. That day averaged 18: 1.2 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 · 128Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 2,790 haTsandiSeptember 2026 · 5 days · 6 km away
- 11,265 haOkahaoSeptember 2026 · 4 days · 19 km away
- 7,137 haTsandi30 November 2025 · 4 days · 19 km away
- 3,367 haTsandi24 November 2025 · 3 days · 28 km away
- 3,146 haOkahaoSeptember 2017 · 3 days · 33 km away
- 23,379 haOkahao27 September 2025 · 4 days · 37 km away
Frequently asked questions
- How long did the Tsandi fire last?
- GWIS (Copernicus) dates it between 15 September 2025 and 18 September 2025: 4 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 4,853 hectares (48.5 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Tsandi (4,883 ha, 2.1 %).
- What was the weather like?
- During the fire the temperature reached 36.2 °C, humidity dropped to 7 % and gusts hit 41 km/h. The fire danger index (FWI) reached 73, class Very extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Namibia (OCHA COD-AB). 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
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 OCHA COD-AB (Namibia Statistics Agency (NSA)) (Creative Commons Attribution for Intergovernmental Organisations (CC BY-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.