How long did the Barrô fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 24 September 2026 to 25 September 2026 (2 days). The perimeter dates it from 24 September 2026 to 24 September 2026. According to ICNF, it was detected on 24 September 2026 at 20:36 and declared extinguished on 25 September 2026.

How much area did it burn?

The perimeter Copernicus measured from satellite imagery is 132 hectares (1.3 km²). Official national figures may differ.

Which municipalities burned?

The fire entered 2 municipalities: Barrô (79 ha, 8.0 %); Penajoia (53 ha, 5.2 %).

Is the Barrô fire still active?

No fire detections since 25 Sept 2026, 03:34 UTC. A lack of detections is not an official extinction.

Did the fire reach a town?

The closest fire to a town centre came within 0.5 km of Penajoia. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.

What was the weather like?

During the fire the temperature reached 32.5 °C, humidity dropped to 19 % and gusts hit 35 km/h. The fire danger index (FWI) reached 43, class Very high.

Where does this data come from?

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

PT · Portugal · 2026-09-24 → 2026-09-25

Barrô fire, September 2026 Barrô, Penajoia

Out · last detection 25 Sept 2026, 03:34 UTC

The fire started on 24 September 2026 in Barrô, Portugal, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 132 hectares from satellite imagery, spread across 2 municipalities. According to ICNF, it was detected on 24 September 2026 at 20:36 and declared extinguished on 25 September 2026.

It is the 8th largest in Resende since 2016 (of 10 with a page). Number 66 in Portugal in 2026, of 78.

The power measured by the satellite is low (22.2 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area: 132ha; Copernicus perimeter
Duration: 2days; 24 Sept 2026 – 25 Sept 2026
Municipalities hit: 2; freguesias
Started on: 24 Sept; 2026
Heat detections: 10; in a single hotspot: 22 MW
Danger at start: 43; Very high · FWI index
Energy released: 133MW; sum of detected power

HOTSPOTS BY DAY 24 Sept25 Sept

How it evolved, day by day

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

The weather it burned in

32°high

35km/h · peak gust

19%lowest humidity

It had gone 15 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 28 Sept.

This area had burned before

49% of the perimeter overlaps earlier fires recorded since 2016: 48 ha in 2016, 28 ha in 2017, 3 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 65 ha that had burned before.

What happened to each town

Barrô 595 inhabitants · 1.2 km from the town where it started

79 ha reached on 25 Sept

8.0 %
Penajoia 804 inhabitants · 0.5 km from the town

53 ha reached on 25 Sept

5.2 %

Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

What burned

Other natural land84 %
Scrub and transitional woodland11 %
Agricultural areas5.5 %

Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.

Official record

According to ICNF, this fire started on 24 September 2026 and burned 123 ha (the satellite measured 132 ha).

Resende Barrô 24 September 2026 · 20:36 123 ha · extinguished on 25 September 2026 · cause: arson

ICNF (Instituto da Conservação da Natureza e das Florestas). This is the agency’s operational record: its figures may be revised when the year’s statistics are closed.

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)
24 Sept	32.5 °C	19 %	35 km/h	0.0 mm	Very high 43
25 Sept	28.7 °C	24 %	25 km/h	0.0 mm	High 36
26 Sept after	28.0 °C	28 %	17 km/h	0.0 mm	High 31
27 Sept after	25.8 °C	46 %	29 km/h	0.1 mm	High 26
28 Sept after	23.6 °C	55 %	32 km/h	1.1 mm	Low 10

Before and after, from space

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

↔

Before · 17 Sept 2026

After · 2 Oct 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 27 September 2026 the air beside the fire reached 168 µg/m³ of PM2.5. That day averaged 74: 4.9 times the WHO daily guideline (15).

PM2.5 peak168 µg/m³

Days over the guideline2 days

PM10206 µg/m³

Optical depth0.43

WHO 15

22232425262728

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 · 10Every 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 Portugal ›

Frequently asked questions

How long did the Barrô fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 24 September 2026 to 25 September 2026 (2 days). The perimeter dates it from 24 September 2026 to 24 September 2026. According to ICNF, it was detected on 24 September 2026 at 20:36 and declared extinguished on 25 September 2026.
How much area did it burn?: The perimeter Copernicus measured from satellite imagery is 132 hectares (1.3 km²). Official national figures may differ.
Which municipalities burned?: The fire entered 2 municipalities: Barrô (79 ha, 8.0 %); Penajoia (53 ha, 5.2 %).
Is the Barrô fire still active?: No fire detections since 25 Sept 2026, 03:34 UTC. A lack of detections is not an official extinction.
Did the fire reach a town?: The closest fire to a town centre came within 0.5 km of Penajoia. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.
What was the weather like?: During the fire the temperature reached 32.5 °C, humidity dropped to 19 % and gusts hit 35 km/h. The fire danger index (FWI) reached 43, class Very high.
Where does this data come from?: From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Portugal (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

Satellite cross-check

NASA FIRMS ↗
EFFIS · Copernicus ↗

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?

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

What really happened?

Your connection to the fire (optional) Email (optional)

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.

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 ADM3 (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). 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