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Wildfires in Piauí
Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-11 06:21 UTC
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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 173,270 km² of Piauí at least once. In an average year it detected fire in 37,190 km², ranking 5th of 27 regions of Brazil.
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 2012, with 52,550 km² detected; the quietest was 2013, with 26,420 km². The 2021–2025 average is within 5% of 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.
August, September and October together hold 73% of the fire-days in the record. The single busiest day was 18 October 2015, with detections in 1,467 cells.
Ground that burns again
Of the 173,270 km² with at least one detection, 47% had detections in three or more different years.
| Years with a detection | km² | Share |
|---|---|---|
| 1 year | 53,230 | 31% |
| 2 years | 38,390 | 22% |
| 3 to 5 years | 58,680 | 34% |
| 6 to 10 years | 21,770 | 13% |
| 11 years or more | 1,200 | 0.7% |
The half-degree square with the most fire-days is centred at -7.25, -43.75 and holds 3.5% of the region's fire-days.
The figures
Show the table
| Year | Detected km² | Fire-days |
|---|---|---|
| 2012 | 52,550 | 64,545 |
| 2013 | 26,420 | 29,703 |
| 2014 | 34,960 | 40,625 |
| 2015 | 44,480 | 56,947 |
| 2016 | 31,120 | 35,238 |
| 2017 | 29,100 | 34,234 |
| 2018 | 34,050 | 41,254 |
| 2019 | 39,600 | 47,769 |
| 2020 | 34,310 | 40,741 |
| 2021 | 43,740 | 54,116 |
| 2022 | 37,480 | 44,913 |
| 2023 | 42,710 | 51,653 |
| 2024 | 32,110 | 37,481 |
| 2025 | 38,040 | 46,045 |
Other regions of Brazil
- Pará102,950 km² in an average year
- Maranhão74,700 km² in an average year
- Mato Grosso70,190 km² in an average year
- Tocantins52,480 km² in an average year
- Bahia36,820 km² in an average year
- Minas Gerais34,920 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.