How long did the Bauntovsky Rayon fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 6 May 2025 to 14 May 2025 (9 days). The perimeter dates it from 7 May 2025 to 14 May 2025.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,414 hectares (34.1 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Bauntovsky Rayon (3,300 ha, 0.0 %).

What was the weather like?

During the fire the temperature reached 19.9 °C, humidity dropped to 13 % and gusts hit 53 km/h. The fire danger index (FWI) reached 26, class High.

Where does this data come from?

From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Russia (geoBoundaries). It is not an official report.

RU · Russia · 2025-05-06 → 2025-05-14

Bauntovsky Rayon fire, 6 May 2025 Bauntovsky Rayon

Out · last detection 14 May 2025, 04:35 UTC

The fire started on 6 May 2025 in Bauntovsky Rayon, Russia, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,414 hectares from heat detections, spread across a single municipality.

It is the 169th largest in Buryatia since 2016 (of 198 with a page). Number 219 in Russia in 2025, of 246.

Compare with…

Suggestions: Yeravninsky Rayon · 2025 Yeravninsky Rayon · 2025 Bauntovsky Rayon · 2025 Yeravninsky Rayon · 2025

Burnt area: 3,414ha; GWIS perimeter (Copernicus)
Duration: 9days; 6 May 2025 – 14 May 2025
Municipalities hit: 1; districts
Started on: 6 May; 2025
Heat detections: 136; in a single hotspot: 55 MW
Danger at start: 19; Moderate · FWI index
Average daily power: 177MW; detected power per day, on average

HOTSPOTS BY DAY 6 May14 May

Play back 14 May 2025

How it evolved, day by day

7 May 9 May 10 May 11 May 13 May

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

The weather it burned in

20°high

53km/h · peak gust

13%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started.

This area had burned before

2% of the perimeter overlaps earlier fires recorded since 2016: 79 ha in 2017.

How big is it?

It burned the equivalent of 2.2% of the area of London (34 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

Bauntovsky Rayon where it started

3,300 ha reached on 7 May

0.0 %

Burnt area inside each municipality, from crossing the GWIS 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.

People and buildings inside the perimeter

GHSL 2025

Built-up area< 0.1 ha

Residents< 20

Inside the perimeter there was no noticeable 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)
7 May	11.8 °C	13 %	37 km/h	0.4 mm	Moderate 19
8 May	13.3 °C	15 %	31 km/h	0.0 mm	Moderate 18
9 May	17.9 °C	17 %	44 km/h	0.0 mm	High 22
10 May	19.9 °C	15 %	53 km/h	0.0 mm	High 26
11 May	17.3 °C	27 %	38 km/h	0.0 mm	Moderate 20
12 May	19.4 °C	24 %	49 km/h	0.8 mm	Moderate 18
13 May	10.3 °C	20 %	51 km/h	0.0 mm	Moderate 20
14 May	8.4 °C	27 %	46 km/h	0.9 mm	Moderate 12
15 May after	10.0 °C	24 %	42 km/h	0.1 mm	Moderate 14
16 May after	10.1 °C	22 %	34 km/h	0.2 mm	Moderate 15
17 May after	10.2 °C	27 %	38 km/h	0.7 mm	Moderate 13
18 May after	9.0 °C	21 %	36 km/h	0.6 mm	Moderate 14
19 May after	14.5 °C	13 %	35 km/h	0.0 mm	Moderate 19
20 May after	16.3 °C	15 %	41 km/h	0.0 mm	High 24
21 May after	16.0 °C	18 %	46 km/h	0.3 mm	High 27
22 May after	20.0 °C	19 %	27 km/h	0.0 mm	Moderate 21
23 May after	22.7 °C	20 %	25 km/h	0.0 mm	Moderate 21
24 May after	23.2 °C	19 %	48 km/h	0.7 mm	High 29

Before and after, from space

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

↔

Before · 29 Apr 2025

After · 21 May 2025

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 10 May 2025 the air beside the fire reached 322 µg/m³ of PM2.5. That day averaged 126: 8.4 times the WHO daily guideline (15).

PM2.5 peak322 µg/m³

Days over the guideline11 days

PM10326 µg/m³

Optical depth2.57

WHO 15

567891011121314151617

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 · 136Every 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 Russia ›

Frequently asked questions

How long did the Bauntovsky Rayon fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 6 May 2025 to 14 May 2025 (9 days). The perimeter dates it from 7 May 2025 to 14 May 2025.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,414 hectares (34.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Bauntovsky Rayon (3,300 ha, 0.0 %).
What was the weather like?: During the fire the temperature reached 19.9 °C, humidity dropped to 13 % and gusts hit 53 km/h. The fire danger index (FWI) reached 26, class High.
Where does this data come from?: From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Russia (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: 112 · Emergency number and official warnings ›

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

25 October 2026 Start date: 7 May 2025 → 6 May 2025.

RSS Changes to this page

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.

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What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

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 112.

How we know this

Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
Dates adjusted with the VIIRS detections inside the perimeter, which said 7 May 2025 to 14 May 2025. 136 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 comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 (Open Data Commons Open Database License 1.0). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.

Where it burned