Zavidovići fire, August 2026 Zavidovići
The fire started on 20 August 2026 in Zavidovići, Bosnia & Herzegovina, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 139 hectares from satellite imagery, spread across a single municipality.
It is the 407th largest in Federation of Bosnia and Herzegovina since 2016 (of 520 with a page). Number 71 in Bosnia & Herzegovina in 2026, of 94.
The power measured by the satellite is low (5.2 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
- Burnt area
- 139ha
- Copernicus perimeter
- Duration
- 1day
- 20 Aug 2026 – 20 Aug 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 20 Aug
- 2026
- Heat detections
- 16
- in a single hotspot: 5 MW
- Danger at start
- 32
- High · FWI index
- Energy released
- 22MW
- 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 one day without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 10 Sept.
This area had burned before
1% of the perimeter overlaps earlier fires recorded since 2016: 2 ha in 2025.
What happened to each town
-
Zavidovići where it started139 ha reached on 20 Aug0.2 %
Burnt area inside each municipality, from crossing the official 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.
What burned
- Mixed forest90 %
- Coniferous forest6.0 %
- Scrub and transitional woodland4.5 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
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) |
|---|---|---|---|---|---|
| 20 Aug | 33.2 °C | 26 % | 39 km/h | 0.0 mm | High 32 |
| 21 Aug after | 33.2 °C | 27 % | 45 km/h | 0.0 mm | High 34 |
| 22 Aug after | 30.1 °C | 33 % | 38 km/h | 0.1 mm | High 32 |
| 23 Aug after | 25.9 °C | 36 % | 33 km/h | 0.0 mm | High 28 |
| 24 Aug after | 28.7 °C | 30 % | 35 km/h | 0.0 mm | High 28 |
| 25 Aug after | 25.4 °C | 42 % | 38 km/h | 1.8 mm | Low 9 |
| 26 Aug after | 26.7 °C | 49 % | 31 km/h | 0.8 mm | Moderate 12 |
| 27 Aug after | 32.6 °C | 29 % | 27 km/h | 0.0 mm | High 26 |
| 28 Aug after | 34.6 °C | 29 % | 37 km/h | 0.1 mm | High 28 |
| 29 Aug after | 32.3 °C | 27 % | 29 km/h | 1.2 mm | High 23 |
| 30 Aug after | 29.5 °C | 37 % | 26 km/h | 0.0 mm | High 24 |
| 31 Aug after | 31.3 °C | 31 % | 18 km/h | 0.0 mm | High 27 |
| 1 Sept after | 26.3 °C | 46 % | 28 km/h | 0.0 mm | High 24 |
| 2 Sept after | 28.4 °C | 34 % | 27 km/h | 0.0 mm | High 24 |
| 3 Sept after | 27.6 °C | 30 % | 32 km/h | 0.0 mm | High 27 |
| 4 Sept after | 27.9 °C | 34 % | 26 km/h | 0.0 mm | High 25 |
| 5 Sept after | 32.4 °C | 24 % | 40 km/h | 0.0 mm | High 36 |
| 6 Sept after | 26.5 °C | 33 % | 32 km/h | 0.0 mm | High 32 |
| 7 Sept after | 28.6 °C | 23 % | 26 km/h | 0.0 mm | High 31 |
| 8 Sept after | 30.2 °C | 21 % | 20 km/h | 0.0 mm | High 32 |
| 9 Sept after | 30.6 °C | 26 % | 32 km/h | 0.5 mm | High 32 |
| 10 Sept after | 26.3 °C | 49 % | 32 km/h | 1.1 mm | Moderate 17 |
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 9 September 2026 the air beside the fire reached 44 µg/m³ of PM2.5. That day averaged 28: 1.8 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 · 16Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Zavidovići fire last?
- Copernicus dates it between 20 August 2026 and 20 August 2026: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 139 hectares (1.4 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Zavidovići (139 ha, 0.2 %).
- What was the weather like?
- During the fire the temperature reached 34.6 °C, humidity dropped to 23 % and gusts hit 45 km/h. The fire danger index (FWI) reached 36, class High.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bosnia & Herzegovina (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: 123 · 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 and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 ADM3 (Public Domain). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.