Burned area
satellite only482ha
Perimeter published by EFFIS (Copernicus).
- Source
- EFFIS (Copernicus)
- Date
- perimeter revised on 4 August 2025
+− cross-check
No official record is matched to this page to compare it with.
PT · Portugal · –
Celorico de Basto fire, 3 August 2025 Rebordelo, Fridão, Codeçoso
Out · last detection 5 Aug 2025, 13:43 UTC
The fire started on 3 August 2025 in Rebordelo, Portugal, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 482 hectares from satellite imagery, spread across 4 freguesias.
Number 40 in Portugal in 2025, of 85.
Use this data
Fire page data · version 2026-10-25matches 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
3 Aug 2025 to 5 Aug 2025: first and last day with fire on the page.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 5 Aug 2025, 13:43 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 only3 Aug 2025
First day with fire seen by the satellites or the perimeter.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 3 Aug 2025
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only38
VIIRS detections at 375 m. Most intense hotspot: 71 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 3 Aug 2025 – 5 Aug 2025
+− 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 only701MW
Total radiative power on 3 August 2025; hotspots that day: 19.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 3 Aug 2025
+− 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
model32.8FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 13.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 3 Aug 2025, 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
model37.5°C · 26% RH
High of 37.5 °C and minimum humidity of 26% on 5 August 2025; gusts of 38 km/h on 3 August 2025.
- Source
- weather model at the fire’s grid cell
- Date
- 3 Aug 2025 – 5 Aug 2025
- 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
-
officialNo longer matched to the official record from ICNF.
-
· reconstructed GHSLPopulation and built-up area computed
-
· reconstructed perimeterEFFIS (Copernicus) revises the perimeter
What was saved on 25 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
- 482 ha
- Dates
- 3 Aug 2025 – 5 Aug 2025
- Name
- Celorico de Basto
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/celorico-de-basto-2025-08?v=2026-10-25A 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 celorico-de-basto-2025-08.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-08-03 | 19 | 701 | 36.1 | 19.5 | 28 | 13.7 | 38.5 | 0 | 32.8 | alto | 1 |
| 2025-08-04 | 18 | 100 | 35.8 | 20.2 | 28 | 10.5 | 30.2 | 0 | 30.3 | alto | 1 |
| 2025-08-05 | 1 | 24 | 37.5 | 18.4 | 26 | 9.8 | 24.5 | 0 | 33.5 | alto | 1 |
| 2025-08-06 | 0 | 0 | 33 | 20.2 | 40 | 11.2 | 31.3 | 0 | 30.6 | alto | 0 |
| 2025-08-07 | 0 | 0 | 33.4 | 18.7 | 39 | 11.7 | 31 | 0 | 28.8 | alto | 0 |
| 2025-08-08 | 0 | 0 | 32.9 | 18.5 | 45 | 12.5 | 32.4 | 0.4 | 29.3 | alto | 0 |
| 2025-08-09 | 0 | 0 | 34.8 | 19.6 | 38 | 11.4 | 28.1 | 0 | 25.8 | alto | 0 |
| 2025-08-10 | 0 | 0 | 35.3 | 20.4 | 35 | 15.1 | 39.6 | 0 | 29.2 | alto | 0 |
| 2025-08-11 | 0 | 0 | 35 | 19.5 | 32 | 8.5 | 18.7 | 0 | 31.4 | alto | 0 |
| 2025-08-12 | 0 | 0 | 33.8 | 20.7 | 37 | 13.4 | 36 | 0 | 35.3 | alto | 0 |
| 2025-08-13 | 0 | 0 | 32.5 | 20.3 | 42 | 9.6 | 26.6 | 0.7 | 29.2 | alto | 0 |
| 2025-08-14 | 0 | 0 | 34.8 | 19.6 | 34 | 8 | 27.7 | 0 | 32.1 | alto | 0 |
| 2025-08-15 | 0 | 0 | 32.2 | 19.5 | 39 | 12.3 | 37.1 | 0 | 39.3 | muy_alto | 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), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 482ha
- Copernicus perimeter
- Duration
- 3days
- 3 Aug 2025 – 5 Aug 2025
- Freguesias hit
- 4
- freguesias
- Started on
- 3 Aug
- 2025
- Heat detections
- 38
- in a single hotspot: 71 MW
- Danger at start
- 33
- High · FWI index
- Average daily power
- 275MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
3 Aug5 Aug
5 Aug 2025
How it evolved, day by day
3 Aug
4 Aug
5 Aug
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
38°high
38km/h · peak gust
26%lowest humidity
It had gone 13 days without rain (1 mm or more) when it started.
This area had burned before
1% of the perimeter overlaps earlier fires recorded since 2016: 6 ha in 2017.
What happened to each freguesia
-
265 ha reached on 3 Aug17 %
-
Fridão 664 inhabitants · 0.7 km from the centre215 ha reached on 3 Aug27 %
-
Codeçoso 388 inhabitants · 1.0 km from the centre2 ha reached on 3 Aug0.2 %
-
Arnoia 1,512 inhabitants · 2.8 km from the centre0 ha0.0 %
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.
What burned
- Scrub and transitional woodland71 %
- Broadleaved forest27 %
- Agricultural areas1.0 %
- Mixed forest0.8 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
People and buildings inside the perimeter
GHSL 2025Built-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) |
|---|---|---|---|---|---|
| 3 Aug | 36.1 °C | 28 % | 38 km/h | 0.0 mm | High 33 |
| 4 Aug | 35.8 °C | 28 % | 30 km/h | 0.0 mm | High 30 |
| 5 Aug | 37.5 °C | 26 % | 24 km/h | 0.0 mm | High 34 |
| 6 Aug after | 33.0 °C | 40 % | 31 km/h | 0.0 mm | High 31 |
| 7 Aug after | 33.4 °C | 39 % | 31 km/h | 0.0 mm | High 29 |
| 8 Aug after | 32.9 °C | 45 % | 32 km/h | 0.4 mm | High 29 |
| 9 Aug after | 34.8 °C | 38 % | 28 km/h | 0.0 mm | High 26 |
| 10 Aug after | 35.3 °C | 35 % | 40 km/h | 0.0 mm | High 29 |
| 11 Aug after | 35.0 °C | 32 % | 19 km/h | 0.0 mm | High 31 |
| 12 Aug after | 33.8 °C | 37 % | 36 km/h | 0.0 mm | High 35 |
| 13 Aug after | 32.5 °C | 42 % | 27 km/h | 0.7 mm | High 29 |
| 14 Aug after | 34.8 °C | 34 % | 28 km/h | 0.0 mm | High 32 |
| 15 Aug after | 32.2 °C | 39 % | 37 km/h | 0.0 mm | Very high 39 |
Its twins: fires that started in the same weather
It started with an FWI of 32.8, a minimum humidity of 28% and 13 days without rain. Fires in the area that started in weather like this since 2016: 19.
FWI at the start
32.8
Minimum humidity
28 %
Days without rain
13
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Celorico de Basto fire, 3 August 2025
482 ha
3 days
FWI 32.8
Min. humidity 28 %
Soalhães fire, September 2019
194 ha
1 day
FWI 32.9
Min. humidity 27 %
21 km away, in 2019
First rain (1 mm or more) after it ended: none in the following ten days.
Verín fire, August 2022
917 ha
2 days
FWI 32.3
Min. humidity 28 %
85 km away, in 2022
First rain (1 mm or more) after it ended: none in the following ten days.
Guarda fire, September 2016
248 ha
1 day
FWI 31.9
Min. humidity 28 %
101 km away, in 2016
First rain (1 mm or more) after it ended: none in the following ten days.
Beiral do Lima fire, September 2016
171 ha
2 days
FWI 31.8
Min. humidity 29 %
61 km away, in 2016
First rain (1 mm or more) after it ended: 46.3 mm on 13 Sept.
Vieira do Minho fire, September 2024
1,359 ha
5 days
FWI 31.8
Min. humidity 28 %
27 km away, in 2024
First rain (1 mm or more) after it ended: 4.7 mm on 20 Sept.
What happened to them
- 2 days
- median duration
- 235 ha
- median area
- 5 %
- went past 1,000 ha
- 9.5 mm
- rain at the end (median; 11 of 19 had it)
It was 2.1 times larger than the median of its twins and lasted 3 days, against 2 days.
Only 6 of its 19 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 8 of 19, 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
—first rain
—no rain in ten days
38km/h · max. gust
It was considered over on 5 Aug, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 11 of 19, 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.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 27 Jul 2025
After · 12 Aug 2025
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 7 August 2025 the air beside the fire reached 197 µg/m³ of PM2.5. That day averaged 97: 6.4 times the WHO daily guideline (15).
PM2.5 peak197 µg/m³
Days over the guideline4 days
PM10328 µg/m³
Optical depth1.14
WHO 15
1 Aug3 Aug5 Aug7 Aug
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 · 38Every 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
- 6,845 haUnião das Freguesias de Campelo e Ovil e Loivos do MonteSeptember 2024 · 3 days · 15 km away
- 6,087 haVila Real Vila Marim3 August 2025 · 13 days · 17 km away
- 5,850 haVila Real Adoufe e Vilarinho de Samardã21 August 2022 · 6 days · 24 km away
- 2,869 haRibeira de Pena AlvãoSeptember 2016 · 7 days · 27 km away
- 6,118 haVila Pouca de Aguiar Telões17 September 2024 · 3 days · 29 km away
- 4,706 haAguiar de SousaSeptember 2024 · 4 days · 36 km away
Frequently asked questions
- How long did the Celorico de Basto fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 3 August 2025 to 5 August 2025 (3 days). The perimeter dates it from 3 August 2025 to 4 August 2025.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 482 hectares (4.8 km²). Official national figures may differ.
- Which freguesias burned?
- The fire entered 4 freguesias: Rebordelo (265 ha, 17 %); Fridão (215 ha, 27 %); Codeçoso (2 ha, 0.2 %); Arnoia (0 ha, 0.0 %).
- Did the fire reach a town?
- The fire came within 0.7 km of the centre of Fridão, 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 37.5 °C, humidity dropped to 26 % and gusts hit 38 km/h. The fire danger index (FWI) reached 34, class 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.
- 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: 19. Their median duration was 2 days and their median area 235 ha; 5 % went past 1,000 ha. Only 6 of its 19 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 8 of 19, 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.
Emergency number: 112 · Emergency number and official warnings
- ICNF · Instituto da Conservação da Natureza e das Florestas ↗
- ANEPC · Proteção Civil ↗
- Fogos.pt (ocorrências em tempo real) ↗
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.
- No longer matched to the official record from ICNF.
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.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 3 August 2025 to 4 August 2025. 38 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.
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. 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.