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Wildfires in Guam

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 222 km² of Guam at least once. In an average year it detected fire in 36 km², ranking 175th of 200 countries.

36 km²detected in an average year
2019busiest year, 81 km²
2023quietest year, 14 km²
Marchpeak month, 23% of fire-days

Year by year

2012: 37 km2'122013: 46 km2'132014: 40 km2'142015: 25 km2'152016: 58 km2'162017: 29 km2'172018: 34 km2'182019: 81 km2'192020: 31 km2'202021: 20 km2'212022: 23 km2'222023: 14 km2'232024: 31 km2'242025: 34 km2'2581 km2

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

The busiest year was 2019, with 81 km² detected; the quietest was 2023, with 14 km². The 2021–2025 average is 40% lower than the 2012–2016 average.

Through the year

January: 8.4%JFebruary: 21%FMarch: 23%MApril: 16%AMay: 16%MJune: 8.6%JJuly: 2.1%JAugust: 0.0%ASeptember: 0.9%SOctober: 0.0%ONovember: 0.4%NDecember: 4.1%D23%

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 60% of the fire-days in the record. The single busiest day was 9 May 2019, with detections in 6 cells.

Ground that burns again

Of the 222 km² with at least one detection, 34% had detections in three or more different years.

Years with a detectionkm²Share
1 year10045%
2 years4721%
3 to 5 years6429%
6 to 10 years114.9%
11 years or more0.00.0%

The half-degree square with the most fire-days is centred at 13.25, 144.75 and holds 96% of the country's fire-days.

The figures

Show the table
YearDetected km²Fire-days
20123733
20134640
20144037
20152526
20165855
20172926
20183433
20198174
20203127
20212019
20222321
20231412
20243134
20253430

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 Guam

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.