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Grude fire, September 2026 Grude

Out · last measured on 4 Sept 2026

The fire started on 4 September 2026 in Grude, Bosnia & Herzegovina, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 188 hectares from satellite imagery, spread across a single municipality.

It is the 324th largest in Federation of Bosnia and Herzegovina since 2016 (of 520 with a page). Number 53 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
188ha
Copernicus perimeter
Duration
1day
4 Sept 2026 – 4 Sept 2026
Municipalities hit
1
municipalities
Started on
4 Sept
2026
Danger at start
30
High · FWI index

Where it burned

The weather it burned in

35°high
26km/h · peak gust
30%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 34.1 mm on 11 Sept.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

  1. Grude where it started
    188 ha
    0.9 %

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 areas97 %
  • Broadleaved forest2.7 %

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)
4 Sept 34.8 °C 30 % 26 km/h 0.0 mm High 30
5 Sept after 35.2 °C 30 % 34 km/h 0.0 mm High 33
6 Sept after 34.3 °C 35 % 29 km/h 0.0 mm High 31
7 Sept after 34.8 °C 31 % 19 km/h 0.0 mm High 30
8 Sept after 34.6 °C 33 % 24 km/h 0.0 mm High 30
9 Sept after 31.8 °C 46 % 26 km/h 0.5 mm High 27
10 Sept after 31.7 °C 47 % 35 km/h 0.2 mm High 28
11 Sept after 26.9 °C 73 % 40 km/h 34.1 mm Very low 0

Before and after, from space

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

Before · 28 Aug 2026
After · 11 Sept 2026

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 7 September 2026 the air beside the fire reached 63 µg/m³ of PM2.5. That day averaged 27: 1.8 times the WHO daily guideline (15).

PM2.5 peak63 µg/m³
Days over the guideline2 days
PM1073 µg/m³
Optical depth1.62
234567
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 Grude fire last?
Copernicus dates it between 4 September 2026 and 4 September 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 188 hectares (1.9 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Grude (188 ha, 0.9 %).
What was the weather like?
During the fire the temperature reached 34.8 °C, humidity dropped to 30 % and gusts hit 26 km/h. The fire danger index (FWI) reached 30, 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
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.