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Wildfires in Tongatapu
Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-12 08:29 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 166 km² of Tongatapu at least once. In an average year it detected fire in 29 km², ranking 1st of 5 regions of Tonga.
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 2013, with 52 km² detected; the quietest was 2025, with 16 km². The 2021–2025 average is 43% 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.
August, September and October together hold 36% of the fire-days in the record. The single busiest day was 17 June 2013, with detections in 6 cells.
Ground that burns again
Of the 166 km² with at least one detection, 36% had detections in three or more different years.
| Years with a detection | km² | Share |
|---|---|---|
| 1 year | 56 | 33% |
| 2 years | 51 | 31% |
| 3 to 5 years | 49 | 29% |
| 6 to 10 years | 12 | 7.0% |
| 11 years or more | 0.0 | 0.0% |
The half-degree square with the most fire-days is centred at -21.25, -175.25 and holds 100% of the region's fire-days.
The figures
Show the table
| Year | Detected km² | Fire-days |
|---|---|---|
| 2012 | 30 | 30 |
| 2013 | 52 | 49 |
| 2014 | 42 | 42 |
| 2015 | 39 | 39 |
| 2016 | 27 | 25 |
| 2017 | 21 | 19 |
| 2018 | 29 | 30 |
| 2019 | 28 | 26 |
| 2020 | 35 | 33 |
| 2021 | 22 | 23 |
| 2022 | 18 | 17 |
| 2023 | 30 | 28 |
| 2024 | 21 | 20 |
| 2025 | 16 | 15 |
Other regions of Tonga
- Haʻapai7.0 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.