Burned area
satellite only153ha
Perimeter published by EFFIS (Copernicus).
- Source
- EFFIS (Copernicus)
- Date
- perimeter revised on 8 September 2026
+− cross-check
No official record is matched to this page to compare it with.
UA · Ukraine · –
Boikivske fire, August 2026 Кальміуський район · Boikivske
Out · last detection 30 Aug 2026, 10:19 UTC
The fire started on 28 August 2026 in Boikivske, Ukraine, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 153 hectares from satellite imagery, spread across a single municipality.
It is the 602th largest in Donetsk Oblast since 2016 (of 1004 with a page). Number 618 in Ukraine in 2026, of 984.
The power measured by the satellite is low (22.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only3days
28 Aug 2026 to 30 Aug 2026: first and last day with fire on the page.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 30 Aug 2026, 10:19 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only28 Aug 2026
First day with fire seen by the satellites or the perimeter.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 28 Aug 2026
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only4
VIIRS detections at 375 m. Most intense hotspot: 23 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 28 Aug 2026 – 30 Aug 2026
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only79MW
Total radiative power on 30 August 2026; hotspots that day: 4.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 30 Aug 2026
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model31.3FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 1.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 28 Aug 2026, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model27.0°C · 26% RH
High of 27.0 °C and minimum humidity of 26% on 30 August 2026; gusts of 39 km/h on 30 August 2026.
- Source
- weather model at the fire’s grid cell
- Date
- 28 Aug 2026 – 30 Aug 2026
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed perimeterEFFIS (Copernicus) revises the perimeter
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 153 ha
- Dates
- 28 Aug 2026 – 30 Aug 2026
- Name
- Boikivske
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/boikivske-2026-08?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire boikivske-2026-08.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-30 | 4 | 79 | 27 | 15.4 | 26 | 20.2 | 39.2 | 0 | 31.3 | alto | 1 |
| 2026-08-31 | 0 | 0 | 27.3 | 12.4 | 17 | 17.7 | 34.9 | 0 | 35.5 | alto | 0 |
| 2026-09-01 | 0 | 0 | 27.9 | 11.9 | 18 | 13.4 | 25.2 | 0 | 32.8 | alto | 0 |
| 2026-09-02 | 0 | 0 | 29.6 | 12.9 | 27 | 7 | 12.2 | 0 | 28.4 | alto | 0 |
| 2026-09-03 | 0 | 0 | 29.5 | 15.6 | 29 | 13.8 | 25.6 | 0 | 32.9 | alto | 0 |
| 2026-09-04 | 0 | 0 | 28.5 | 14.9 | 27 | 9.7 | 18.7 | 0 | 30.2 | alto | 0 |
| 2026-09-05 | 0 | 0 | 29.6 | 12.2 | 27 | 21.3 | 40 | 0 | 40.6 | muy_alto | 0 |
| 2026-09-06 | 0 | 0 | 23.1 | 15 | 44 | 20.6 | 40.3 | 6.3 | 5.7 | bajo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: EFFIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 153ha
- Copernicus perimeter
- Duration
- ≈ 3days
- 28 Aug 2026 – 30 Aug 2026
- Municipalities hit
- 1
- districts
- Started on
- 28 Aug
- 2026
- Heat detections
- 4
- in a single hotspot: 23 MW
- Danger at start
- 31
- High · FWI index
- Average daily power
- 79MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
28 Aug30 Aug
How it evolved, day by day
30 Aug 2026 · 79 MW · 4
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
27°high
39km/h · peak gust
26%lowest humidity
It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 6.3 mm on 6 Sept.
This area had burned before
100% of the perimeter overlaps earlier fires recorded since 2016: 76 ha in 2023, 153 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 153 ha that had burned before.
What happened to each town
-
153 ha reached on 30 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
- Agricultural areas62 %
- Other natural land38 %
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) |
|---|---|---|---|---|---|
| 30 Aug | 27.0 °C | 26 % | 39 km/h | 0.0 mm | High 31 |
| 31 Aug after | 27.3 °C | 17 % | 35 km/h | 0.0 mm | High 36 |
| 1 Sept after | 27.9 °C | 18 % | 25 km/h | 0.0 mm | High 33 |
| 2 Sept after | 29.6 °C | 27 % | 12 km/h | 0.0 mm | High 28 |
| 3 Sept after | 29.5 °C | 29 % | 26 km/h | 0.0 mm | High 33 |
| 4 Sept after | 28.5 °C | 27 % | 19 km/h | 0.0 mm | High 30 |
| 5 Sept after | 29.6 °C | 27 % | 40 km/h | 0.0 mm | Very high 41 |
| 6 Sept after | 23.1 °C | 44 % | 40 km/h | 6.3 mm | Low 6 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 21 Aug 2026
After · 6 Sept 2026
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 2 September 2026 the air beside the fire reached 18 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
PM2.5 peak18 µg/m³
Days over the guideline0 days
PM1033 µg/m³
Optical depth0.42
WHO 15
28 Aug30 Aug1 Sept
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 · 4Every 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
- 10,977 haBoikivske Кальміуський район8 July 2025 · 4 days · 6 km away
- 1,354 haVolnovakha Волноваський район20 March 2022 · 3 days · 12 km away
- 2,027 haBoikivske Кальміуський район30 August 2023 · 1 day · 13 km away
- 1,398 haNovoazovsk Новоазовський район12 July 2025 · 2 days · 28 km away
- 2,717 haNovoazovsk Новоазовський районJuly 2026 · 7 days · 32 km away
- 2,125 haMarinka Мар'їнський район29 July 2025 · 3 days · 33 km away
Frequently asked questions
- How long did the Boikivske fire last?
- The official perimeter only gives the start date (30 August 2026). The end comes from the heat detections inside the perimeter: it burned until 30 August 2026 (3 days from 28 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 153 hectares (1.5 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Boikivske (153 ha, 0.1 %).
- Did the fire reach a town?
- The fire started in Boikivske and came within 12.0 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 27.0 °C, humidity dropped to 26 % and gusts hit 39 km/h. The fire danger index (FWI) reached 31, 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
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
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. 4 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.
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.