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Wildfires in Sierra Leone

Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-11 05:23 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 2026-09-21

Between 2012 and 2025, VIIRS detected fire in 69,850 km² of Sierra Leone at least once. In an average year it detected fire in 43,490 km², ranking 45th of 200 countries.

43,490 km²detected in an average year
2015busiest year, 50,320 km²
2021quietest year, 37,570 km²
Aprilpeak month, 36% of fire-days

Year by year

2012: 43,480 km2'122013: 43,960 km2'132014: 48,860 km2'142015: 50,320 km2'152016: 41,900 km2'162017: 41,020 km2'172018: 41,560 km2'182019: 44,280 km2'192020: 41,460 km2'202021: 37,570 km2'212022: 43,380 km2'222023: 44,680 km2'232024: 46,340 km2'242025: 40,020 km2'2550,320 km2

Detected area per year, km². Area of 0.01° cells with at least one detection in the year.

The busiest year was 2015, with 50,320 km² detected; the quietest was 2021, with 37,570 km². The 2021–2025 average is 7.2% lower than the 2012–2016 average.

Through the year

January: 14%JFebruary: 13%FMarch: 30%MApril: 36%AMay: 3.4%MJune: 0.1%JJuly: 0.0%JAugust: 0.0%ASeptember: 0.0%SOctober: 0.0%ONovember: 0.3%NDecember: 4.0%D36%

Share of all fire-days 2012–2025 by month. A fire-day is one cell with a detection on one day.

February, March and April together hold 78% of the fire-days in the record. The single busiest day was 29 March 2012, with detections in 4,107 cells.

Ground that burns again

Of the 69,850 km² with at least one detection, 96% had detections in three or more different years.

Years with a detectionkm²Share
1 year1,3902.0%
2 years1,5902.3%
3 to 5 years8,14012%
6 to 10 years36,37052%
11 years or more22,36032%

The half-degree square with the most fire-days is centred at 9.25, -11.25 and holds 6.1% of the country's fire-days.

The figures

Show the table
YearDetected km²Fire-days
201243,48058,162
201343,96060,051
201448,86074,265
201550,32075,322
201641,90056,128
201741,02053,788
201841,56055,432
201944,28061,921
202041,46055,287
202137,57047,303
202243,38060,102
202344,68061,199
202446,34066,636
202540,02050,749

Nearby countries

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.

Nearby countries

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Wildfires in Sierra Leone

What sits behind each of these fires

Attached to every fire in the list above, and redrawn hourly.

What is actually burning
What is actually burningThe ESA WorldCover class under every detection, read at 10 m. Forest, cropland, shrub or built-up, named rather than guessed.
Has this ground burned before
Has this ground burned beforeEvery fire is checked against an archive back to 2012, which answers with the years this same ground burned.
Alerts that stay quiet
Alerts that stay quietA fire must miss two passes before we say it stopped and grow by more than half again before we say it spread. Nothing is said twice.