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Oleshky fire, 14 June 2026 Олешківський район · Oleshky

Out · last measured on 6 Jul 2026

The fire started on 14 June 2026 in Oleshky, Ukraine, and satellites saw it burning for 23 days. Copernicus mapped a burnt perimeter of 112 hectares from satellite imagery, spread across a single municipality.

It is the 1013th largest in Kherson Oblast since 2016 (of 1102 with a page). Number 870 in Ukraine in 2026, of 984.

Compare with…

Suggestions: Krasnoperekopsk · 2026Holo Prystan · 2024Oleshky · 2025Beryslav · 2025

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
112ha
Copernicus perimeter
Duration
23days
14 Jun 2026 – 6 Jul 2026
Municipalities hit
1
districts
Started on
14 Jun
2026
Danger at start
19
Moderate · FWI index

Where it burned

The weather it burned in

36°high
49km/h · peak gust
25%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 1.9 mm on 8 Jul.

This area had burned before

82% of the perimeter overlaps earlier fires recorded since 2016: 92 ha in 2025.

What happened to each town

  1. Oleshky Олешківський район 70,367 inhabitants · 29.0 km from the centre where it started
    112 ha
    0.1 %

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

  • Agricultural areas58 %
  • Other natural land38 %
  • Artificial surfaces3.6 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

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)
14 Jun 25.2 °C 37 % 29 km/h 0.0 mm Moderate 19
15 Jun 24.0 °C 47 % 40 km/h 0.0 mm High 24
16 Jun 25.0 °C 41 % 32 km/h 5.5 mm High 22
17 Jun 28.7 °C 27 % 42 km/h 0.0 mm Moderate 13
18 Jun 23.5 °C 50 % 24 km/h 1.6 mm Low 10
19 Jun 26.5 °C 37 % 31 km/h 0.0 mm Moderate 20
20 Jun 29.7 °C 30 % 22 km/h 0.0 mm High 24
21 Jun 29.0 °C 34 % 29 km/h 0.0 mm High 31
22 Jun 31.6 °C 25 % 27 km/h 0.0 mm High 25
23 Jun 32.6 °C 35 % 29 km/h 1.5 mm High 36
24 Jun 31.2 °C 37 % 24 km/h 0.1 mm Moderate 20
25 Jun 31.7 °C 28 % 31 km/h 0.0 mm High 37
26 Jun 29.0 °C 35 % 38 km/h 0.0 mm Very high 44
27 Jun 28.8 °C 29 % 34 km/h 0.0 mm Very high 41
28 Jun 34.0 °C 29 % 32 km/h 0.0 mm Very high 40
29 Jun 32.0 °C 28 % 27 km/h 0.0 mm Very high 40
30 Jun 35.5 °C 36 % 29 km/h 0.5 mm High 32
1 Jul 33.2 °C 33 % 34 km/h 0.0 mm Very high 45
2 Jul 34.3 °C 27 % 31 km/h 0.0 mm Very high 45
3 Jul 34.4 °C 26 % 22 km/h 0.0 mm Very high 40
4 Jul 25.3 °C 61 % 49 km/h 5.9 mm Low 11
5 Jul 26.2 °C 32 % 38 km/h 0.0 mm Moderate 21
6 Jul 28.1 °C 32 % 40 km/h 0.1 mm High 38
7 Jul after 29.3 °C 23 % 27 km/h 0.0 mm High 30
8 Jul after 29.0 °C 41 % 49 km/h 1.9 mm Very high 45

Its twins: fires that started in the same weather

It started with an FWI of 18.7, a minimum humidity of 37% and 3 days without rain. Fires in the area that started in weather like this since 2022: 15.

FWI at the start 18.7
Minimum humidity 37 %
Days without rain 3
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Krasnoperekopsk fire, September 2026
209 ha 1 day FWI 18.4 Min. humidity 37 % 92 km away, in 2026

First rain (1 mm or more) after it ended: 5.2 mm on 14 Sept.

See its page Compare with this fire

What happened to them

2 days
median duration
129 ha
median area
7 %
went past 1,000 ha
2.7 mm
rain at the end (median; 9 of 15 had it)

It burned an area similar to its twins (112 ha against a median of 129 ha) and lasted 23 days, against 2 days.

In 6 of 15, 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 2.7 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

1.9 mmfirst rain
8 Jul2 days after it ended
49km/h · max. gust

It was considered over on 6 Jul, and on 8 Jul 1.9 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 9 of 15, with a median of 2.7 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 2022.
  • 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.

How we calculate it

Before and after, from space

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

Before · 7 Jun 2026
After · 13 Jul 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 12 June 2026 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
PM1010 µg/m³
Optical depth0.32
12 Jun14 Jun16 Jun
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 Ukraine

Frequently asked questions

How long did the Oleshky fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 14 June 2026 to 6 July 2026 (23 days). The perimeter dates it from 14 June 2026 to 14 June 2026.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 112 hectares (1.1 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Oleshky (112 ha, 0.1 %).
Did the fire reach a town?
The fire started in Oleshky and came within 29.0 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 35.5 °C, humidity dropped to 25 % and gusts hit 49 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2022 with a similar FWI, humidity and dry spell: 15. Their median duration was 2 days and their median area 129 ha; 7 % went past 1,000 ha. In 6 of 15, 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 2.7 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: 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.

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
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 101 · 112.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 14 June 2026 to 14 June 2026. 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.

How we build fire pages: methodology

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.