Oleshky fire, 10 August 2025 Олешківський район · Oleshky
The fire started on 10 August 2025 in Oleshky, Ukraine, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 138 hectares from satellite imagery, spread across a single municipality.
It is the 833th largest in Kherson Oblast since 2016 (of 1103 with a page). Number 967 in Ukraine in 2025, of 1359.
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- Burnt area
- 138ha
- Copernicus perimeter
- Duration
- 4days
- 10 Aug 2025 – 13 Aug 2025
- Municipalities hit
- 1
- districts
- Started on
- 10 Aug
- 2025
- Heat detections
- 18
- in a single hotspot: 39 MW
- Danger at start
- 41
- Very high · FWI index
- Average daily power
- 36MW
- detected power per day, on average
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 22 days without rain (1 mm or more) when it started. Rain came after the fire: 13.4 mm on 23 Aug.
This area had burned before
64% of the perimeter overlaps earlier fires recorded since 2016: 75 ha in 2022, 11 ha in 2023, 41 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 88 ha that had burned before.
- 54 ha Oleshky fire, August 2022 602 ha in total; the hectares shown are those it shares with this fire
- 27 ha Oleshky fire, April 2024 1,000 ha in total; the hectares shown are those it shares with this fire
- 21 ha Oleshky fire, July 2022 1,435 ha in total; the hectares shown are those it shares with this fire
- 11 ha Oleshky fire, October 2023 352 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
138 ha reached on 10 Aug0.1 %
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
- Mixed forest52 %
- Other natural land21 %
- Agricultural areas14 %
- Coniferous forest13 %
Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).
People and buildings inside the perimeter
GHSL 2025Inside 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) |
|---|---|---|---|---|---|
| 10 Aug | 31.1 °C | 22 % | 31 km/h | 0.0 mm | Very high 41 |
| 11 Aug | 31.5 °C | 25 % | 43 km/h | 0.6 mm | Very high 45 |
| 12 Aug | 28.7 °C | 24 % | 30 km/h | 0.0 mm | High 36 |
| 13 Aug | 30.4 °C | 26 % | 25 km/h | 0.0 mm | High 34 |
| 14 Aug after | 31.4 °C | 21 % | 28 km/h | 0.0 mm | High 38 |
| 15 Aug after | 29.1 °C | 21 % | 38 km/h | 0.0 mm | Very high 44 |
| 16 Aug after | 29.8 °C | 25 % | 28 km/h | 0.0 mm | High 38 |
| 17 Aug after | 32.4 °C | 24 % | 20 km/h | 0.0 mm | High 35 |
| 18 Aug after | 32.0 °C | 23 % | 43 km/h | 0.2 mm | Extreme 51 |
| 19 Aug after | 26.6 °C | 26 % | 32 km/h | 0.0 mm | Very high 42 |
| 20 Aug after | 28.9 °C | 24 % | 25 km/h | 0.0 mm | High 37 |
| 21 Aug after | 31.2 °C | 29 % | 30 km/h | 0.0 mm | Very high 42 |
| 22 Aug after | 31.6 °C | 31 % | 43 km/h | 0.0 mm | Very high 45 |
| 23 Aug after | 23.0 °C | 60 % | 45 km/h | 13.4 mm | Very low 4 |
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 15 August 2025 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)
Detections table · 18Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 3,517 haOleshky Олешківський район24 June 2025 · 7 days · 12 km away
- 3,116 haBilozerka Білозерський район20 June 2026 · 19 days · 19 km away
- 3,175 haBilozerka Білозерський район1 June 2025 · 12 days · 23 km away
- 2,957 haBeryslav30 May 2025 · 15 days · 24 km away
- 5,595 haBeryslav2 June 2025 · 11 days · 30 km away
- 5,107 haHolo Prystan Скадовський район10 August 2026 · 9 days · 34 km away
Frequently asked questions
- How long did the Oleshky fire last?
- Copernicus dates it between 10 August 2025 and 13 August 2025: 4 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 138 hectares (1.4 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Oleshky (138 ha, 0.1 %).
- Did the fire reach a town?
- The fire started in Oleshky and came within 14.2 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
- What was the weather like?
- During the fire the temperature reached 31.5 °C, humidity dropped to 22 % and gusts hit 43 km/h. The fire danger index (FWI) reached 45, class Very high.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ukraine (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: 101 · 112 · 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.
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.
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How we know this
- Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 18 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 ADM2 (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.