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Bileća fire, 6 August 2025 Bileća, Gacko

Out · last measured on 6 Aug 2025

The fire started on 6 August 2025 in Bileća, Bosnia & Herzegovina, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 292 hectares from satellite imagery, spread across 2 municipalities.

It is the 166th largest in Republika Srpska since 2016 (of 391 with a page). Number 27 in Bosnia & Herzegovina in 2025, of 65.

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
292ha
Copernicus perimeter
Duration
1day
6 Aug 2025 – 6 Aug 2025
Municipalities hit
2
municipalities
Started on
6 Aug
2025
Danger at start
8
Low · FWI index

Where it burned

The weather it burned in

25°high
45km/h · peak gust
46%lowest humidity

It had gone one day without rain (1 mm or more) when it started.

This area had burned before

72% of the perimeter overlaps earlier fires recorded since 2016: 202 ha in 2020, 7 ha in 2022, 2 ha in 2024.

What happened to each town

  1. Bileća where it started
    286 ha
    0.4 %
  2. Gacko
    6 ha
    0.0 %

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

  • Sclerophyllous scrub84 %
  • Agricultural areas9.6 %
  • Other natural land6.1 %

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)
6 Aug 24.7 °C 46 % 45 km/h 0.0 mm Low 8
7 Aug after 27.8 °C 33 % 26 km/h 0.0 mm Low 10
8 Aug after 30.3 °C 33 % 18 km/h 0.0 mm Moderate 13
9 Aug after 32.6 °C 27 % 18 km/h 0.0 mm Moderate 16
10 Aug after 33.6 °C 22 % 24 km/h 0.0 mm Moderate 20
11 Aug after 32.1 °C 30 % 49 km/h 0.0 mm High 26
12 Aug after 32.4 °C 29 % 27 km/h 0.0 mm High 22
13 Aug after 32.1 °C 26 % 24 km/h 0.0 mm High 22
14 Aug after 30.7 °C 32 % 24 km/h 0.5 mm High 22
15 Aug after 30.4 °C 22 % 30 km/h 0.0 mm High 24
16 Aug after 29.5 °C 26 % 26 km/h 0.4 mm High 23

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 30 Jul 2025
After · 13 Aug 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 9 August 2025 the air beside the fire reached 8 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak8 µg/m³
Days over the guideline0 days
PM109 µg/m³
Optical depth0.76
456789
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)

Other fires nearby

All fires in Bosnia & Herzegovina ›

Frequently asked questions

How long did the Bileća fire last?
Copernicus dates it between 6 August 2025 and 6 August 2025: 1 day between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 292 hectares (2.9 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Bileća (286 ha, 0.4 %); Gacko (6 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 24.7 °C, humidity dropped to 46 % and gusts hit 45 km/h. The fire danger index (FWI) reached 8, class Low.
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
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 123 · 112.

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.