Burned area
satellite only577ha
Perimeter published by EFFIS (Copernicus).
- Source
- EFFIS (Copernicus)
- Date
- perimeter revised on 20 August 2025
+− cross-check
No official record is matched to this page to compare it with.
ME · Montenegro ·
Kotor Municipality fire, August 2025 Kotor Municipality
Out · last measured on 18 Aug 2025
The fire started on 18 August 2025 in Kotor Municipality, Montenegro, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 577 hectares from satellite imagery, spread across a single municipality.
Number 12 in Montenegro in 2025, of 60.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only1day
18 Aug 2025 to 18 Aug 2025: first and last day with fire on the page.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 18 Aug 2025 – 18 Aug 2025
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only18 Aug 2025
First day with fire seen by the satellites or the perimeter.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 18 Aug 2025
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Danger at the start
model0.7FWI · very low
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 0.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 18 Aug 2025, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model27.1°C · 52% RH
High of 27.1 °C and minimum humidity of 52% on 18 August 2025; gusts of 26 km/h on 18 August 2025.
- Source
- weather model at the fire’s grid cell
- Date
- 18 Aug 2025 – 18 Aug 2025
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed GHSLPopulation and built-up area computed
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed perimeterEFFIS (Copernicus) revises the perimeter
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 577 ha
- Dates
- 18 Aug 2025 – 18 Aug 2025
- Name
- Kotor Municipality
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/kotor-municipality-2025-08?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire kotor-municipality-2025-08.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-08-18 | 0 | 0 | 27.1 | 19.2 | 52 | 9.6 | 25.6 | 9.5 | 0.7 | muy_bajo | 1 |
| 2025-08-19 | 0 | 0 | 26.4 | 17.1 | 51 | 7.1 | 18 | 0 | 2.7 | muy_bajo | 0 |
| 2025-08-20 | 0 | 0 | 25.4 | 17.4 | 61 | 6.9 | 20.2 | 1.5 | 2.1 | muy_bajo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: EFFIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
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
- 577ha
- Copernicus perimeter
- Duration
- 1day
- 18 Aug 2025 – 18 Aug 2025
- Municipalities hit
- 1
- municipalities
- Started on
- 18 Aug
- 2025
- Danger at start
- 1
- Very low · FWI index
Where it burned
The weather it burned in
27°high
26km/h · peak gust
52%lowest humidity
It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.5 mm on 20 Aug.
This area had burned before
3% of the perimeter overlaps earlier fires recorded since 2016: 20 ha in 2022.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Kotor Municipality where it started579 ha2.0 %
Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.
What burned
- Other natural land78 %
- Agricultural areas18 %
- Scrub and transitional woodland3.8 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
People and buildings inside the perimeter
GHSL 2025Built-up area< 0.1 ha
Residents< 20
Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).
This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.
Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu
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) |
|---|---|---|---|---|---|
| 18 Aug | 27.1 °C | 52 % | 26 km/h | 9.5 mm | Very low 1 |
| 19 Aug after | 26.4 °C | 51 % | 18 km/h | 0.0 mm | Very low 3 |
| 20 Aug after | 25.4 °C | 61 % | 20 km/h | 1.5 mm | Very low 2 |
Its twins: fires that started in the same weather
It started with an FWI of 0.7, a minimum humidity of 52% and rain the day before. Fires in the area that started in weather like this since 2016: 39.
FWI at the start
0.7
Minimum humidity
52 %
Days without rain
0
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Kotor Municipality fire, August 2025
577 ha
1 day
FWI 0.7
Min. humidity 52 %
Bileća fire, February 2022
167 ha
1 day
FWI 0.1
Min. humidity 52 %
43 km away, in 2022
First rain (1 mm or more) after it ended: 1.0 mm on 13 Feb.
Gacko fire, February 2024
216 ha
2 days
FWI 0.6
Min. humidity 52 %
67 km away, in 2024
First rain (1 mm or more) after it ended: 3.0 mm on 23 Feb.
Prozor-Rama fire, March 2024
254 ha
1 day
FWI 0.1
Min. humidity 52 %
159 km away, in 2024
First rain (1 mm or more) after it ended: 5.5 mm on 18 Mar.
Gacko fire, January 2024
2,198 ha
6 days
FWI 0.4
Min. humidity 53 %
80 km away, in 2024
First rain (1 mm or more) after it ended: 1.1 mm on 7 Feb.
Nikšić Municipality fire, February 2024
186 ha
2 days
FWI 0.2
Min. humidity 54 %
38 km away, in 2024
First rain (1 mm or more) after it ended: 5.1 mm on 23 Feb.
What happened to them
- 2 days
- median duration
- 221 ha
- median area
- 5 %
- went past 1,000 ha
- 5.2 mm
- rain at the end (median; 34 of 39 had it)
It was 2.6 times larger than the median of its twins and lasted 1 day, against 2 days.
Only 9 of its 39 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 5 of 39, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 5.2 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
1.5 mmfirst rain
20 Aug2 days after it ended
26km/h · max. gust
It was considered over on 18 Aug, and on 20 Aug 1.5 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 34 of 39, with a median of 5.2 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2016.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 11 Aug 2025
After · 25 Aug 2025
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 21 August 2025 the air beside the fire reached 11 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
PM2.5 peak11 µg/m³
Days over the guideline0 days
PM1016 µg/m³
Optical depth0.51
16 Aug18 Aug20 Aug
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
- 7,850 haCetinje Municipality1 August 2021 · 24 days · 14 km away
- 4,394 haCetinje Municipality3 August 2021 · 20 days · 17 km away
- 14,076 haNikšić Municipality17 August 2026 · 26 days · 19 km away
- 6,073 haTrebinjeAugust 2026 · 19 days · 24 km away
- 5,687 haDanilovgrad Municipality7 July 2017 · 13 days · 28 km away
- 3,061 haTrebinje8 August 2021 · 10 days · 37 km away
Frequently asked questions
- How long did the Kotor Municipality fire last?
- Copernicus dates it between 18 August 2025 and 18 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 577 hectares (5.8 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Kotor Municipality (579 ha, 2.0 %).
- What was the weather like?
- During the fire the temperature reached 27.1 °C, humidity dropped to 52 % and gusts hit 26 km/h. The fire danger index (FWI) reached 1, class Very low.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Montenegro (geoBoundaries). It is not an official report.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 39. Their median duration was 2 days and their median area 221 ha; 5 % went past 1,000 ha. Only 9 of its 39 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 5 of 39, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 5.2 mm.
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: 112 · 123 · Emergency number and official warnings
Satellite cross-check
History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
No changes since 24 October 2026.
RSS Changes to this page With cross-checks and a citable version
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
How we know this
- Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. No Suomi-NPP VIIRS detections on those dates.
- We have not matched this page with any official record.
- Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
- Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
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 ADM1 (Open Data Commons Open Database License 1.0). 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.