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Oleshky fire, February 2026 Олешківський район · Oleshky

Out · last measured on 30 Jun 2026

The fire started on 28 February 2026 in Oleshky, Ukraine, and satellites saw it burning for 123 days. Copernicus mapped a burnt perimeter of 115 hectares from satellite imagery, spread across a single municipality.

It is the 990th largest in Kherson Oblast since 2016 (of 1102 with a page). Number 843 in Ukraine in 2026, of 984.

Compare with…

Suggestions: Holo Prystan · 2025Holo Prystan · 2025Oleshky · 2025Oleshky · 2023

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
115ha
Copernicus perimeter
Duration
123days
28 Feb 2026 – 30 Jun 2026
Municipalities hit
1
districts
Started on
28 Feb
2026
Danger at start
1
Very low · FWI index

Where it burned

The weather it burned in

35°high
68km/h · peak gust
18%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 8.7 mm on 4 Jul.

This area had burned before

100% of the perimeter overlaps earlier fires recorded since 2016: 92 ha in 2023, 114 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 115 ha that had burned before.

What happened to each town

  1. Oleshky Олешківський район 70,367 inhabitants · 8.4 km from the centre where it started
    115 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

  • Mixed forest47 %
  • Other natural land47 %
  • Agricultural areas6.0 %

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)
28 Feb 6.4 °C 63 % 27 km/h 0.0 mm Very low 1
1 Mar 9.9 °C 56 % 19 km/h 0.0 mm Very low 1
2 Mar 8.6 °C 69 % 39 km/h 0.0 mm Very low 2
3 Mar 9.0 °C 60 % 48 km/h 0.2 mm Very low 2
4 Mar 7.0 °C 59 % 31 km/h 0.0 mm Very low 1
5 Mar 10.6 °C 46 % 35 km/h 0.0 mm Very low 3
6 Mar 7.2 °C 56 % 44 km/h 0.4 mm Very low 5
7 Mar 6.4 °C 51 % 20 km/h 0.0 mm Very low 2
8 Mar 10.4 °C 50 % 21 km/h 0.0 mm Very low 3
9 Mar 13.7 °C 30 % 24 km/h 0.0 mm Low 6
10 Mar 15.4 °C 33 % 17 km/h 0.0 mm Low 6
11 Mar 15.7 °C 40 % 26 km/h 0.0 mm Low 8
12 Mar 16.5 °C 37 % 28 km/h 0.0 mm Low 9
13 Mar 14.7 °C 32 % 37 km/h 0.0 mm Low 11
14 Mar 13.5 °C 43 % 46 km/h 0.0 mm Moderate 15
15 Mar 12.4 °C 40 % 50 km/h 0.0 mm Moderate 16
16 Mar 12.6 °C 38 % 34 km/h 0.0 mm Low 10
17 Mar 11.4 °C 51 % 28 km/h 0.0 mm Low 9
18 Mar 9.4 °C 50 % 32 km/h 0.1 mm Low 10
19 Mar 9.4 °C 58 % 36 km/h 0.0 mm Low 9
20 Mar 12.0 °C 59 % 47 km/h 0.1 mm Moderate 12
21 Mar 12.1 °C 53 % 47 km/h 0.8 mm Moderate 12
22 Mar 11.9 °C 46 % 39 km/h 1.8 mm Very low 3
23 Mar 14.9 °C 40 % 38 km/h 0.0 mm Low 7
24 Mar 12.2 °C 48 % 33 km/h 0.2 mm Low 9
25 Mar 12.2 °C 61 % 30 km/h 0.4 mm Low 7
26 Mar 14.9 °C 58 % 20 km/h 0.5 mm Very low 5
27 Mar 19.4 °C 42 % 15 km/h 0.0 mm Low 6
28 Mar 19.0 °C 47 % 28 km/h 0.0 mm Low 8
29 Mar 20.9 °C 42 % 45 km/h 3.3 mm Moderate 14
30 Mar 16.6 °C 68 % 32 km/h 8.2 mm Very low 0
31 Mar 13.1 °C 81 % 25 km/h 1.4 mm Very low 0
1 Apr 14.9 °C 70 % 28 km/h 1.9 mm Very low 0
2 Apr 15.4 °C 60 % 32 km/h 0.7 mm Very low 1
3 Apr 15.0 °C 79 % 32 km/h 3.7 mm Very low 0
4 Apr 18.2 °C 63 % 32 km/h 2.7 mm Very low 1
5 Apr 20.0 °C 35 % 38 km/h 0.0 mm Very low 2
6 Apr 21.5 °C 33 % 42 km/h 0.1 mm Moderate 13
7 Apr 12.4 °C 37 % 44 km/h 3.2 mm Low 7
8 Apr 8.9 °C 64 % 36 km/h 5.6 mm Very low 1
9 Apr 8.6 °C 69 % 29 km/h 4.1 mm Very low 0
10 Apr 10.4 °C 54 % 32 km/h 1.0 mm Very low 0
11 Apr 10.9 °C 41 % 30 km/h 0.4 mm Very low 1
12 Apr 10.2 °C 48 % 22 km/h 0.6 mm Very low 1
13 Apr 11.7 °C 42 % 19 km/h 1.7 mm Very low 3
14 Apr 16.0 °C 37 % 38 km/h 0.1 mm Very low 4
15 Apr 18.5 °C 35 % 30 km/h 0.0 mm Low 9
16 Apr 17.3 °C 27 % 25 km/h 0.0 mm Moderate 12
17 Apr 19.1 °C 27 % 26 km/h 0.0 mm Moderate 13
18 Apr 15.6 °C 54 % 32 km/h 0.8 mm Moderate 14
19 Apr 15.9 °C 40 % 43 km/h 0.2 mm Low 9
20 Apr 16.8 °C 35 % 34 km/h 0.8 mm Low 8
21 Apr 9.8 °C 55 % 48 km/h 9.7 mm Very low 0
22 Apr 11.9 °C 39 % 37 km/h 0.3 mm Very low 3
23 Apr 15.4 °C 37 % 68 km/h 3.4 mm Low 8
24 Apr 13.8 °C 33 % 43 km/h 0.4 mm Very low 4
25 Apr 18.0 °C 34 % 31 km/h 0.0 mm Low 8
26 Apr 20.4 °C 46 % 61 km/h 0.1 mm Moderate 18
27 Apr 12.2 °C 30 % 45 km/h 0.0 mm Moderate 18
28 Apr 15.9 °C 35 % 40 km/h 0.2 mm Moderate 17
29 Apr 14.9 °C 41 % 24 km/h 0.7 mm Low 7
30 Apr 14.6 °C 26 % 30 km/h 0.0 mm Moderate 13
1 May 12.6 °C 30 % 38 km/h 0.4 mm Moderate 19
2 May 13.6 °C 42 % 35 km/h 1.4 mm Moderate 12
3 May 17.4 °C 18 % 38 km/h 0.0 mm Moderate 15
4 May 19.2 °C 26 % 54 km/h 0.0 mm High 32
5 May 20.4 °C 28 % 28 km/h 0.0 mm Moderate 18
6 May 22.4 °C 36 % 28 km/h 0.0 mm Moderate 20
7 May 21.9 °C 43 % 28 km/h 0.0 mm Moderate 21
8 May 22.5 °C 37 % 32 km/h 0.0 mm High 22
9 May 23.6 °C 39 % 23 km/h 0.0 mm Moderate 19
10 May 21.5 °C 45 % 33 km/h 1.8 mm Moderate 20
11 May 21.2 °C 47 % 37 km/h 0.5 mm Low 10
12 May 22.2 °C 41 % 40 km/h 0.1 mm Moderate 20
13 May 19.1 °C 69 % 29 km/h 3.0 mm Very low 3
14 May 16.1 °C 66 % 43 km/h 0.2 mm Low 6
15 May 21.9 °C 31 % 30 km/h 0.0 mm Moderate 17
16 May 22.6 °C 32 % 22 km/h 0.0 mm Moderate 20
17 May 22.8 °C 42 % 26 km/h 0.3 mm Moderate 18
18 May 23.6 °C 43 % 31 km/h 0.5 mm Moderate 12
19 May 26.5 °C 39 % 22 km/h 0.0 mm Moderate 18
20 May 27.0 °C 42 % 37 km/h 4.8 mm Moderate 19
21 May 22.9 °C 65 % 47 km/h 0.8 mm Very low 5
22 May 28.8 °C 39 % 31 km/h 1.3 mm Moderate 15
23 May 28.0 °C 39 % 37 km/h 2.0 mm Moderate 19
24 May 26.6 °C 47 % 40 km/h 0.6 mm Moderate 14
25 May 26.5 °C 34 % 34 km/h 0.0 mm High 27
26 May 27.0 °C 35 % 50 km/h 0.0 mm High 37
27 May 28.1 °C 38 % 61 km/h 1.9 mm Very high 49
28 May 22.3 °C 30 % 46 km/h 0.3 mm Moderate 20
29 May 19.0 °C 34 % 44 km/h 1.3 mm High 25
30 May 15.2 °C 62 % 41 km/h 7.4 mm Very low 2
31 May 14.6 °C 70 % 26 km/h 8.5 mm Very low 0
1 Jun 20.0 °C 44 % 25 km/h 1.0 mm Very low 1
2 Jun 22.2 °C 39 % 31 km/h 0.0 mm Low 9
3 Jun 21.0 °C 53 % 32 km/h 2.1 mm Low 6
4 Jun 24.9 °C 51 % 18 km/h 0.4 mm Low 7
5 Jun 27.8 °C 41 % 15 km/h 0.0 mm Moderate 12
6 Jun 28.3 °C 41 % 16 km/h 0.0 mm Moderate 15
7 Jun 24.9 °C 57 % 27 km/h 6.0 mm Very low 2
8 Jun 26.6 °C 46 % 35 km/h 1.1 mm Low 8
9 Jun 26.0 °C 45 % 26 km/h 2.8 mm Moderate 12
10 Jun 27.6 °C 44 % 15 km/h 4.1 mm Very low 4
11 Jun 27.2 °C 48 % 19 km/h 0.3 mm Very low 2
12 Jun 27.2 °C 51 % 27 km/h 0.9 mm Very low 5
13 Jun 22.1 °C 62 % 40 km/h 0.0 mm Low 9
14 Jun 25.6 °C 36 % 32 km/h 0.0 mm Moderate 16
15 Jun 24.1 °C 49 % 37 km/h 0.0 mm Moderate 20
16 Jun 25.2 °C 41 % 37 km/h 5.3 mm Moderate 19
17 Jun 28.8 °C 28 % 41 km/h 0.0 mm Moderate 12
18 Jun 23.5 °C 50 % 25 km/h 3.6 mm Low 7
19 Jun 26.5 °C 37 % 33 km/h 0.0 mm Low 10
20 Jun 29.6 °C 32 % 24 km/h 0.0 mm Moderate 18
21 Jun 29.2 °C 33 % 28 km/h 0.0 mm High 27
22 Jun 31.0 °C 27 % 27 km/h 0.0 mm High 21
23 Jun 32.8 °C 35 % 29 km/h 0.5 mm High 34
24 Jun 31.4 °C 38 % 25 km/h 0.2 mm High 28
25 Jun 31.6 °C 29 % 29 km/h 0.0 mm High 32
26 Jun 29.1 °C 35 % 37 km/h 0.0 mm Very high 41
27 Jun 28.6 °C 29 % 34 km/h 0.0 mm High 38
28 Jun 34.0 °C 31 % 35 km/h 0.0 mm Very high 38
29 Jun 31.9 °C 28 % 27 km/h 0.0 mm Very high 38
30 Jun 35.2 °C 41 % 23 km/h 0.7 mm High 26
1 Jul after 33.2 °C 34 % 36 km/h 0.0 mm Very high 42
2 Jul after 33.5 °C 27 % 31 km/h 0.0 mm Very high 44
3 Jul after 34.7 °C 27 % 21 km/h 0.1 mm High 38
4 Jul after 25.0 °C 57 % 47 km/h 8.7 mm Low 8

Its twins: fires that started in the same weather

It started with an FWI of 0.6, a minimum humidity of 63% and 3 days without rain. Fires in the area that started in weather like this since 2022: 18.

FWI at the start 0.6
Minimum humidity 63 %
Days without rain 3
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Holo Prystan fire, February 2025
161 ha 2 days FWI 1.0 Min. humidity 63 % 43 km away, in 2025

First rain (1 mm or more) after it ended: 3.8 mm on 15 Feb.

See its page Compare with this fire

What happened to them

2 days
median duration
191 ha
median area
11 %
went past 1,000 ha
3.0 mm
rain at the end (median; 12 of 18 had it)

It stayed below its twins: 115 ha against a median of 191 ha. It lasted 123 days, against 2 days.

In 6 of 18, 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 3.0 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

8.7 mmfirst rain
4 Jul4 days after it ended
68km/h · max. gust

It was considered over on 30 Jun, and on 4 Jul 8.7 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 12 of 18, with a median of 3.0 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 · 21 Feb 2026
After · 7 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 1 March 2026 the air beside the fire reached 21 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak21 µg/m³
Days over the guideline0 days
PM1024 µg/m³
Optical depth0.52
26 Feb28 Feb2 Mar
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 28 February 2026 to 30 June 2026 (123 days). The perimeter dates it from 28 February 2026 to 28 February 2026.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 115 hectares (1.2 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Oleshky (115 ha, 0.1 %).
Did the fire reach a town?
The fire started in Oleshky and came within 8.4 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 35.2 °C, humidity dropped to 18 % and gusts hit 68 km/h. The fire danger index (FWI) reached 49, 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: 18. Their median duration was 2 days and their median area 191 ha; 11 % went past 1,000 ha. In 6 of 18, 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 3.0 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 28 February 2026 to 28 February 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.