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Holo Prystan fire, 10 August 2026 Скадовський район · Oleshky, Holo Prystan

Out · last detection 18 Aug 2026, 10:43 UTC

The fire started on 10 August 2026 in Holo Prystan, Ukraine, and satellites saw it burning for 9 days. Copernicus mapped a burnt perimeter of 5,107 hectares from satellite imagery, spread across 2 municipalities.

It is the 3th largest in Kherson Oblast since 2016 (of 1103 with a page). Number 2 in Ukraine in 2026, of 984.

Compare with…

Suggestions: Kakhovka · 2023Oleshky · 2023Holo Prystan · 2024Holo Prystan · 2023

Burnt area
5,107ha
Copernicus perimeter
Duration
≈ 9days
10 Aug 2026 – 18 Aug 2026
Municipalities hit
2
districts
Started on
10 Aug
2026
Heat detections
156
in a single hotspot: 112 MW
Danger at start
29
High · FWI index
Average daily power
247MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 10 Aug18 Aug
18 Aug 2026

How it evolved, day by day

10 Aug 2026 · 19 MW · 10 13 Aug 2026 · 3 MW · 2 14 Aug 2026 · 1,076 MW · 65 15 Aug 2026 · 342 MW · 60 16 Aug 2026 · 285 MW · 17 17 Aug 2026 · 0 MW · 1 18 Aug 2026 · 4 MW · 1
10 Aug 14 Aug 16 Aug 18 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

34°high
45km/h · peak gust
25%lowest humidity

It had gone 12 days without rain (1 mm or more) when it started. Rain came after the fire: 3.6 mm on 19 Aug.

This area had burned before

89% of the perimeter overlaps earlier fires recorded since 2016: 1,422 ha in 2023, 3,495 ha in 2024, 767 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 4,521 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.2% of the area of London (51 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Oleshky Олешківський район 70,367 inhabitants · 14.0 km from the centre
    2,645 ha reached on 10 Aug
    1.4 %
  2. Holo Prystan Скадовський район 127,000 inhabitants · 17.8 km from the centre where it started
    2,458 ha reached on 10 Aug
    1.1 %

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

  • Other natural land54 %
  • Agricultural areas33 %
  • Mixed forest8.0 %
  • Coniferous forest4.2 %

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

People and buildings inside the perimeter

GHSL 2025
Built-up area0.53 ha
Residents< 20

Inside the perimeter there were about 0.53 hectares of 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 33.2 °C 41 % 29 km/h 0.2 mm High 29
11 Aug 34.1 °C 31 % 17 km/h 0.0 mm High 26
12 Aug 29.7 °C 29 % 45 km/h 0.0 mm High 36
13 Aug 26.2 °C 27 % 40 km/h 0.0 mm High 34
14 Aug 26.8 °C 26 % 35 km/h 0.0 mm High 32
15 Aug 27.5 °C 25 % 36 km/h 0.0 mm High 33
16 Aug 29.3 °C 28 % 24 km/h 0.0 mm High 29
17 Aug 30.9 °C 27 % 20 km/h 0.0 mm High 30
18 Aug 31.2 °C 27 % 40 km/h 0.0 mm High 37
19 Aug after 24.8 °C 46 % 28 km/h 3.6 mm Very low 5

Its twins: fires that started in the same weather

It started with an FWI of 28.9, a minimum humidity of 41% and 12 days without rain. Fires in the area that started in weather like this since 2022: 27.

FWI at the start 28.9
Minimum humidity 41 %
Days without rain 12
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Kakhovka fire, September 2023
119 ha 3 days FWI 30.3 Min. humidity 42 % 58 km away, in 2023

First rain (1 mm or more) after it ended: none in the following ten days.

See its page Compare with this fire

What happened to them

2 days
median duration
146 ha
median area
4 %
went past 1,000 ha
2.6 mm
rain at the end (median; 25 of 27 had it)

It was 35.0 times larger than the median of its twins and lasted 9 days, against 2 days.

None of its 27 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 2 of 27, 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 2.6 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

3.6 mmfirst rain
19 Augthe day after it ended
45km/h · max. gust

It was considered over on 18 Aug, and on 19 Aug 3.6 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 25 of 27, with a median of 2.6 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 · 3 Aug 2026
After · 25 Aug 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 16 August 2026 the air beside the fire reached 33 µg/m³ of PM2.5. That day averaged 18: 1.2 times the WHO daily guideline (15).

PM2.5 peak33 µg/m³
Days over the guideline1 day
PM1040 µg/m³
Optical depth0.42
8 Aug11 Aug14 Aug17 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)

Detections table · 156Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Ukraine

Frequently asked questions

How long did the Holo Prystan fire last?
The official perimeter only gives the start date (13 August 2026). The end comes from the heat detections inside the perimeter: it burned until 18 August 2026 (9 days from 10 August 2026), the last day with detections before more than 10 days in a row without any, so it is approximate.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 5,107 hectares (51.1 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Oleshky (2,645 ha, 1.4 %); Holo Prystan (2,458 ha, 1.1 %).
Did the fire reach a town?
The fire came within 14.0 km of the centre of Oleshky, the closest of the areas it touched. 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 34.1 °C, humidity dropped to 25 % and gusts hit 45 km/h. The fire danger index (FWI) reached 37, class 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: 27. Their median duration was 2 days and their median area 146 ha; 4 % went past 1,000 ha. None of its 27 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 2 of 27, 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 2.6 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.
  • The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 156 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.

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.