Castanheira de Pera fire, August 2016
Campelo, Castanheira de Pera e Coentral
Out · last detection 12 Aug 2016, 13:41 UTC
The fire started on 9 August 2016 in Castanheira de Pera e Coentral, Portugal, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 581 hectares from satellite imagery, spread across 2 freguesias. According to ICNF, it was detected on 8 August 2016 at 23:53 and declared extinguished on 11 August 2016.
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
model
30.7°C · 23% RH
High of 30.7 °C and minimum humidity of 23% on 12 August 2016; gusts of 46 km/h on 10 August 2016.
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.
Living inside
model
≈ 30people
Estimated residents inside the perimeter and 2.1 ha of built-up area (100 m grid, epoch 2015).
Source
GHSL R2023A · JRC
Date
calculated on 24 October 2026
+− cross-check
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.
ⓘ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
· reconstructedofficial
Matched with the official ICNF record
Matches: 520 ha in the official record (records: 1).
A 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
Burnt area inside each freguesia, 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.
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 2015
Built-up area2.1ha
Residents≈ 30
Inside the perimeter there were about 2.1 hectares of built-up land and about 30 residents (GHSL 2015, 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.
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)
It started with an FWI of 53.4, a minimum humidity of 30% and 32 days without rain. Fires in the area that started in weather like this since 2016: 29.
FWI at the start53.4
Minimum humidity30 %
Days without rain32
this firechosen twinsrest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Castanheira de Pera fire, August 2016
581 ha4 daysFWI 53.4Min. humidity 30 %
Vila Pouca de Aguiar fire, September 2024
1,150 ha3 daysFWI 54.6Min. humidity 27 %182 km away, in 2024
First rain (1 mm or more) after it ended: 9.6 mm on 20 Sept.
It burned an area similar to its twins (581 ha against a median of 732 ha) and lasted 4 days, against 2 days.
In 13 of 29, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 9.5 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
1.2 mmfirst rain
19 Aug7 days after it ended
46km/h · max. gust
It was considered over on 12 Aug, and on 19 Aug 1.2 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 16 of 29, with a median of 9.5 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
Same area: fires that have already ended, less than 250 km from this one, since 2016.
Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
They are sorted by similarity, and the outlines of the first five are drawn.
Drag the line to compare the same ground before the fire and after it.
↔
Before · 2 Aug 2016
After · 19 Aug 2016
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 · Copernicus
On 8 August 2016 the air beside the fire reached 96 µg/m³ of PM2.5. That day averaged 50: 3.3 times the WHO daily guideline (15).
PM2.5 peak96µg/m³
Days over the guideline7days
PM10102µg/m³
WHO 15
7 Aug9 Aug11 Aug13 Aug15 Aug
GoodFairModeratePoorVery poorExtremely 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· 51Every satellite heat detection, one by one, with time, satellite, power and coordinates.›
⬇ Download CSVTimes in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
According to the heat detections seen by satellite inside the perimeter, it burned from 9 August 2016 to 12 August 2016 (4 days). The perimeter dates it from 9 August 2016 to 11 August 2016. According to ICNF, it was detected on 8 August 2016 at 23:53 and declared extinguished on 11 August 2016.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 581 hectares (5.8 km²). Official national figures may differ.
Which freguesias burned?
The fire entered 2 freguesias: Campelo (431 ha, 8.4 %); Castanheira de Pera e Coentral (151 ha, 2.3 %).
Did the fire reach a town?
The fire came within 1.3 km of the centre of Campelo, the closest of the areas it touched. 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 30.7 °C, humidity dropped to 23 % and gusts hit 46 km/h. The fire danger index (FWI) reached 53, class Extreme.
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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 29. Their median duration was 2 days and their median area 732 ha; 38 % went past 1,000 ha. In 13 of 29, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 9.5 mm.
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.
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 errorHow we know this›
Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
Dates adjusted with the VIIRS detections inside the perimeter, which said 9 August 2016 to 11 August 2016. 51 Suomi-NPP VIIRS detections on those dates.
Compared with ICNF: 520 official ha against 581 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 2015, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
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. Freguesia boundaries come from geoBoundaries ADM3 (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). The area per freguesia is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.