Bihać fire, 3 August 2026 Bihać
The fire started on 3 August 2026 in Bihać, Bosnia & Herzegovina, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 209 hectares from satellite imagery, spread across a single municipality.
It is the 286th largest in Federation of Bosnia and Herzegovina since 2016 (of 520 with a page). Number 47 in Bosnia & Herzegovina in 2026, of 94.
We have the Copernicus perimeter for this fire, but not yet its hotspots: NASA publishes the yearly hotspot archive only once the year closes. The page picks it up automatically when it is available.
- Burnt area
- 209ha
- Copernicus perimeter
- Duration
- 1day
- 3 Aug 2026 – 3 Aug 2026
- Municipalities hit
- 1
- municipalities
- Started on
- 3 Aug
- 2026
- Danger at start
- 26
- High · FWI index
Where it burned
The weather it burned in
It had gone 6 days without rain (1 mm or more) when it started.
This area had burned before
15% of the perimeter overlaps earlier fires recorded since 2016: 4 ha in 2020, 22 ha in 2021, 10 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 32 ha that had burned before.
What happened to each town
-
Bihać where it started208 ha0.2 %
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
- Agricultural areas65 %
- Scrub and transitional woodland18 %
- Broadleaved forest15 %
- Other natural land1.4 %
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) |
|---|---|---|---|---|---|
| 3 Aug | 34.7 °C | 24 % | 23 km/h | 0.0 mm | High 26 |
| 4 Aug after | 34.5 °C | 27 % | 17 km/h | 0.0 mm | High 27 |
| 5 Aug after | 34.8 °C | 26 % | 29 km/h | 0.0 mm | High 30 |
| 6 Aug after | 34.8 °C | 20 % | 30 km/h | 0.0 mm | High 33 |
| 7 Aug after | 31.5 °C | 40 % | 36 km/h | 0.3 mm | High 29 |
| 8 Aug after | 27.5 °C | 50 % | 42 km/h | 0.2 mm | High 24 |
| 9 Aug after | 31.2 °C | 34 % | 41 km/h | 0.0 mm | High 26 |
| 10 Aug after | 34.4 °C | 23 % | 28 km/h | 0.0 mm | High 29 |
| 11 Aug after | 34.5 °C | 27 % | 38 km/h | 0.0 mm | High 36 |
| 12 Aug after | 31.8 °C | 32 % | 46 km/h | 0.0 mm | High 35 |
| 13 Aug after | 30.2 °C | 27 % | 49 km/h | 0.0 mm | High 37 |
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 4 August 2026 the air beside the fire reached 18 µg/m³ of PM2.5, but no daily average passed the WHO 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)
Other fires nearby
- 3,528 haBihać20 March 2022 · 8 days · 2 km away
- 4,086 haOpćina Gračac5 August 2017 · 6 days · 21 km away
- 4,225 haOpćina Gračac21 March 2022 · 6 days · 22 km away
- 4,959 haOpćina Gračac5 April 2020 · 6 days · 28 km away
- 3,936 haOpćina Gračac22 March 2022 · 6 days · 34 km away
- 8,657 haBosansko GrahovoAugust 2026 · 2 days · 37 km away
Frequently asked questions
- How long did the Bihać fire last?
- Copernicus dates it between 3 August 2026 and 3 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 209 hectares (2.1 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Bihać (208 ha, 0.2 %).
- What was the weather like?
- During the fire the temperature reached 34.7 °C, humidity dropped to 24 % and gusts hit 23 km/h. The fire danger index (FWI) reached 26, 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.