How long did the Orikhiv fire last?

The official perimeter only gives the start date (1 August 2026). The end comes from the heat detections inside the perimeter: it burned until 5 August 2026 (5 days from 1 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 112 hectares (1.1 km²). Official national figures may differ.

Which municipalities burned?

The fire only entered Orikhiv (112 ha, 0.1 %).

Did the fire reach a town?

The fire started in Orikhiv and came within 12.7 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 34.5 °C, humidity dropped to 25 % and gusts hit 37 km/h. The fire danger index (FWI) reached 32, 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.

UA · Ukraine · 2026-08-01 → 2026-08-05

Orikhiv fire, 1 August 2026 Оріхівський район · Orikhiv

Out · last detection 1 Aug 2026, 11:04 UTC

The fire started on 1 August 2026 in Orikhiv, Ukraine, and satellites saw it burning for 5 days. Copernicus mapped a burnt perimeter of 112 hectares from satellite imagery, spread across a single municipality.

It is the 426th largest in Zaporizhzhia Oblast since 2016 (of 490 with a page). Number 870 in Ukraine in 2026, of 984.

The power measured by the satellite is low (2.4 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…

Suggestions: Orikhiv · 2024 Orikhiv · 2023 Orikhiv · 2025 Orikhiv · 2024

Burnt area: 112ha; Copernicus perimeter
Duration: ≈ 5days; 1 Aug 2026 – 5 Aug 2026
Municipalities hit: 1; districts
Started on: 1 Aug; 2026
Heat detections: 3; in a single hotspot: 2 MW
Danger at start: 24; High · FWI index
Average daily power: 7MW; detected power per day, on average

HOTSPOTS BY DAY 1 Aug5 Aug

How it evolved, day by day

1 Aug 2026 · 7 MW · 3

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

37km/h · peak gust

25%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started.

This area had burned before

96% of the perimeter overlaps earlier fires recorded since 2016: 56 ha in 2023, 101 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 107 ha that had burned before.

What happened to each town

Orikhiv Оріхівський район 44,686 inhabitants · 12.7 km from the centre where it started

112 ha reached on 1 Aug

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 areas42 %
Other natural land42 %
Mixed forest16 %
Artificial surfaces0.9 %

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)
1 Aug	30.7 °C	27 %	27 km/h	0.0 mm	High 24
2 Aug	32.8 °C	25 %	31 km/h	0.0 mm	High 28
3 Aug	33.3 °C	26 %	37 km/h	0.0 mm	High 31
4 Aug	33.9 °C	26 %	33 km/h	0.0 mm	High 32
5 Aug	34.5 °C	26 %	28 km/h	0.0 mm	High 29
6 Aug after	35.9 °C	20 %	29 km/h	0.0 mm	High 34
7 Aug after	36.2 °C	21 %	48 km/h	0.0 mm	Very high 46
8 Aug after	34.8 °C	27 %	36 km/h	0.8 mm	High 36
9 Aug after	31.2 °C	46 %	41 km/h	0.1 mm	High 31
10 Aug after	31.7 °C	38 %	38 km/h	0.0 mm	High 30
11 Aug after	33.9 °C	34 %	21 km/h	0.1 mm	High 27
12 Aug after	29.6 °C	29 %	41 km/h	0.9 mm	High 32
13 Aug after	24.8 °C	27 %	43 km/h	0.0 mm	High 33
14 Aug after	24.9 °C	25 %	36 km/h	0.0 mm	High 32
15 Aug after	25.7 °C	27 %	29 km/h	0.0 mm	High 30

Before and after, from space

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

↔

Before · 25 Jul 2026

After · 12 Aug 2026

Before After

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 31 July 2026 the air beside the fire reached 23 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak23 µg/m³

Days over the guideline0 days

PM1033 µg/m³

Optical depth0.67

WHO 15

30311234

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 · 3Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Ukraine ›

Frequently asked questions

How long did the Orikhiv fire last?: The official perimeter only gives the start date (1 August 2026). The end comes from the heat detections inside the perimeter: it burned until 5 August 2026 (5 days from 1 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 112 hectares (1.1 km²). Official national figures may differ.
Which municipalities burned?: The fire only entered Orikhiv (112 ha, 0.1 %).
Did the fire reach a town?: The fire started in Orikhiv and came within 12.7 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 34.5 °C, humidity dropped to 25 % and gusts hit 37 km/h. The fire danger index (FWI) reached 32, 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.

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 ›

ДСНС · State Emergency Service ↗

Satellite cross-check

NASA FIRMS ↗
EFFIS · Copernicus ↗

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

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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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What really happened?

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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. 3 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.

Where it burned