AURSEEAursee
Wildfires in Portalegre
Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-11 11:24 UTC
Follow Portalegre: fire alerts by emailNo fires detected in Portalegre in the last 24 hours.
Fire alerts for Portalegre
Free. One email when satellites detect fire anywhere in Portalegre, then at most one update a day while fires continue.
Free. Pick a town and we email you when satellites detect fire within 30 km of it.
Fire history, 2012–2025
Detected · VIIRS S-NPP 375 m · 0.01° cells (~1.1 km) · complete years 2012–2025 · built 2026-09-23
Between 2012 and 2025, VIIRS detected fire in 552 km² of Portalegre at least once. In an average year it detected fire in 44 km², ranking 19th of 20 regions of Portugal.
Year by year
Detected area per year, km². Area of 0.01° cells with at least one detection in the year.
The busiest year was 2017, with 155 km² detected; the quietest was 2023, with 12 km². The 2021–2025 average is 35% lower than the 2012–2016 average.
Through the year
Share of all fire-days 2012–2025 by month. A fire-day is one cell with a detection on one day.
June, July and August together hold 44% of the fire-days in the record. The single busiest day was 27 July 2017, with detections in 56 cells.
Ground that burns again
Of the 552 km² with at least one detection, 1.9% had detections in three or more different years.
| Years with a detection | km² | Share |
|---|---|---|
| 1 year | 507 | 92% |
| 2 years | 35 | 6.3% |
| 3 to 5 years | 11 | 1.9% |
| 6 to 10 years | 0.0 | 0.0% |
| 11 years or more | 0.0 | 0.0% |
The half-degree square with the most fire-days is centred at 39.25, -7.75 and holds 26% of the region's fire-days.
The figures
Show the table
| Year | Detected km² | Fire-days |
|---|---|---|
| 2012 | 43 | 51 |
| 2013 | 69 | 75 |
| 2014 | 33 | 35 |
| 2015 | 43 | 49 |
| 2016 | 30 | 32 |
| 2017 | 155 | 186 |
| 2018 | 32 | 34 |
| 2019 | 40 | 44 |
| 2020 | 27 | 28 |
| 2021 | 24 | 26 |
| 2022 | 23 | 26 |
| 2023 | 12 | 15 |
| 2024 | 28 | 29 |
| 2025 | 54 | 60 |
Other regions of Portugal
- Viseu320 km² in an average year
- Vila Real294 km² in an average year
- Braga245 km² in an average year
- Guarda213 km² in an average year
- Viana do Castelo204 km² in an average year
- Porto197 km² in an average year
- How these figures are madeDetected area, cells, and the single-satellite record.
Detected area counts every 0.01° cell with at least one VIIRS detection, so a small fire counts as a whole cell and a fire missed by cloud or between passes is absent. Borders: Natural Earth 1:10m. 2012 begins on 20 January.