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Freigil e Miomães fire, September 2024 Ferreiros de Tendais, Oliveira do Douro, Freigil e Miomães

Out · last detection 19 Sept 2024, 02:18 UTC

The fire started on 16 September 2024 in Freigil e Miomães, Portugal, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 2,406 hectares from satellite imagery, spread across 7 municipalities. According to ICNF, it was detected on 16 September 2024 at 17:46 and declared extinguished on 18 September 2024.

It is the largest fire in Resende since 2016 (of 10 with a page). Number 11 in Portugal in 2024, of 69.

Compare with…
Burnt area
2,406ha
Copernicus perimeter
Duration
4days
16 Sept 2024 – 19 Sept 2024
Municipalities hit
7
freguesias
Started on
16 Sept
2024
Heat detections
283
in a single hotspot: 155 MW
Danger at start
47
Very high · FWI index
Average daily power
1.8GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Sept19 Sept
19 Sept 2024

How it evolved, day by day

17 Sept 2024 · 4,934 MW · 237 18 Sept 2024 · 458 MW · 43 19 Sept 2024 · 5 MW · 3
17 Sept 18 Sept 19 Sept

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

The weather it burned in

31°high
56km/h · peak gust
15%lowest humidity

It had gone 8 days without rain (1 mm or more) when it started. Rain came after the fire: 7.3 mm on 20 Sept.

This area had burned before

42% of the perimeter overlaps earlier fires recorded since 2016: 971 ha in 2016, 337 ha in 2017, 24 ha in 2019, 325 ha in 2020, 5 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 1,009 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.5% of the area of London (24 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. Ferreiros de Tendais 540 inhabitants · fire reached the centre
    713 ha reached on 17 Sept
    45 %
  2. Oliveira do Douro 1,257 inhabitants · fire reached the centre
    660 ha reached on 17 Sept
    47 %
  3. Freigil e Miomães 678 inhabitants · fire reached the centre where it started
    392 ha reached on 17 Sept
    53 %
  4. Anreade e São Romão de Arego 1,348 inhabitants · fire reached the centre
    340 ha reached on 17 Sept
    34 %
  5. São Cipriano 670 inhabitants · fire reached the centre
    158 ha reached on 17 Sept
    24 %
  6. Alhões, Bustelo, Gralheira e Ramires 517 inhabitants · 6.4 km from the centre
    110 ha reached on 18 Sept
    3.0 %
  7. Cárquere 746 inhabitants · 0.9 km from the centre
    35 ha reached on 17 Sept
    4.6 %

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

  • Scrub and transitional woodland34 %
  • Agricultural areas29 %
  • Other natural land22 %
  • Mixed forest6.2 %
  • Coniferous forest6.2 %
  • Broadleaved forest2.5 %

Natura 2000 protected area affected: 60 %

Natura 2000 sites (European Environment Agency, 2024 release) crossed by the perimeter.

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

People and buildings inside the perimeter

GHSL 2025
Built-up area11 ha
Residents≈ 550

Inside the perimeter there were about 11 hectares of built-up land and about 550 residents (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

Official record

According to ICNF, this fire started on 16 September 2024 and burned 2,287 ha (the satellite measured 2,406 ha).

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)
16 Sept 30.6 °C 15 % 52 km/h 0.0 mm Very high 47
17 Sept 26.1 °C 25 % 56 km/h 0.0 mm Very high 45
18 Sept 26.4 °C 36 % 44 km/h 0.0 mm High 33
19 Sept 24.8 °C 50 % 31 km/h 0.4 mm High 24
20 Sept after 21.1 °C 69 % 25 km/h 7.3 mm Very low 0

Before and after, from space

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

Before · 9 Sept 2024
After · 26 Sept 2024

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 19 September 2024 the air beside the fire reached 371 µg/m³ of PM2.5. That day averaged 174: 12 times the WHO daily guideline (15).

PM2.5 peak371 µg/m³
Days over the guideline5 days
PM10452 µg/m³
Optical depth4.89
1516171819202122
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 · 283Every 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 Portugal ›

Frequently asked questions

How long did the Freigil e Miomães fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 16 September 2024 to 19 September 2024 (4 days). The perimeter dates it from 17 September 2024 to 19 September 2024. According to ICNF, it was detected on 16 September 2024 at 17:46 and declared extinguished on 18 September 2024.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 2,406 hectares (24.1 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 7 municipalities: Ferreiros de Tendais (713 ha, 45 %); Oliveira do Douro (660 ha, 47 %); Freigil e Miomães (392 ha, 53 %); Anreade e São Romão de Arego (340 ha, 34 %); São Cipriano (158 ha, 24 %); Alhões, Bustelo, Gralheira e Ramires (110 ha, 3.0 %); Cárquere (35 ha, 4.6 %).
Did the fire reach a town?
The fire started in Freigil e Miomães and reached its centre: the point marking it was inside the burnt area or less than 500 metres from it. That does not mean houses burned.
What was the weather like?
During the fire the temperature reached 30.6 °C, humidity dropped to 15 % and gusts hit 56 km/h. The fire danger index (FWI) reached 47, 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 · Emergency number and official warnings ›

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 17 September 2024 → 16 September 2024.

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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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: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 17 September 2024 to 19 September 2024. 283 Suomi-NPP VIIRS detections on those dates.
  • Compared with ICNF: 2,287 official ha against 2,406 ha of perimeter; they agree within 25%.
  • 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 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.