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JP · 2022 yearbook

Wildfires in Japan in 2022

21 fires larger than 200 hectares in Japan in 2022, with 15,960 hectares burned according to their perimeters. Here is the whole year: what the official record says, when and where it burned and what the weather was like.

Only fires of 200 ha or more get an entry: smaller ones are not in the lists or the entry totals, but they are in the GWIS yearly series.

The year in a few sentences

  1. According to Copernicus GWIS, 18,456 hectares burned in Japan in 2022: 1.8 times the average of the other years from 2012 to 2024 (10,515 ha). It is the year with the most burned area of the 13 in the record.

    Copernicus GWIS · See the data

  2. The worst week was 5 March to 11 March: 9,392 hectares burned in seven days, 51% of the year according to Copernicus GWIS.

    Copernicus GWIS · See the data

  3. The largest fire was the Aso fire, which started on 6 March 2022 and burned 4,010 hectares: 25% of the area of the year's 21 fires with a page.

    WorldFires · See the data · Open the fire page

Official burned area
18k ha
Copernicus GWIS · ×1.8 the average
Fires with a page
21
15,960 ha within their perimeters
Largest fire
4,010 ha
Aso · 6 Mar
Highest FWI
—
Not yet calculated with the current method

Map of the year

Copernicus GWIS
One circle per fire, sized by its area. Tap one to open its page.

Month by month

Hectares within the perimeters by the month the fire started. Tap a month to see it on the map.

Week by week, against other years

Copernicus GWIS

Cumulative burned area in 2022 over the lowest and highest of each week in the record since 2012, and its average. The bars below show what burned each week. Tap the chart to see a week. The average and the band are the Copernicus GWIS climatology for 2012–2025, which includes 2022 itself.

0 6,152 12k 18k Worst week · 9,392 ha Jan Mar May Jul Sep Nov
2022 average 2012–2025 lowest and highest Hectares each week

Every year since 2012

Copernicus GWIS

Hectares burned per year in the official record. Tap a year to open its yearbook.

2022: 18,456 ha Average of the other years: 10,515 ha

Cite this

Markdown version

Copy the sentences with their source and link. WorldFires data are CC BY 4.0: credit WorldFires and the original source.

- According to Copernicus GWIS, 18,456 hectares burned in Japan in 2022: 1.8 times the average of the other years from 2012 to 2024 (10,515 ha). It is the year with the most burned area of the 13 in the record.
- The worst week was 5 March to 11 March: 9,392 hectares burned in seven days, 51% of the year according to Copernicus GWIS.
- The largest fire was the Aso fire, which started on 6 March 2022 and burned 4,010 hectares: 25% of the area of the year's 21 fires with a page.

WorldFires, “Wildfires in Japan in 2022”, https://worldfires.org/en/country/japan/2022 (accessed 6 November 2026). Sources: Copernicus GWIS, WorldFires.

Fires of 2022, largest first · 21

Burned area in 2022 (Copernicus Land, Sentinel-3)

According to Copernicus Land, 34,409 ha burned in 2022: rank 2 of 7 complete years (1 = the most burned). The average of those years is 27,647 ha.

The area the Sentinel-3 satellite sees burned each month, separate from the fire pages. It is the same source and the same method every year, so years can be compared with each other. It counts everything that burns, including crop and pasture burning, which is why it does not match the fire pages or the official statistics.

JanFebMarAprMayJunJulAugSepOctNovDec

Where most burned in 2022

  1. Kumamoto 17,058 ha
  2. Oita 4,468 ha
  3. Shizuoka 3,844 ha
  4. Yamanashi 1,919 ha
  5. Hokkaido 1,737 ha
  6. Tochigi 1,431 ha
  7. Fukushima 1,165 ha
  8. Aomori 588 ha
  9. Fukuoka Prefecture 491 ha
  10. Miyazaki Prefecture 455 ha

The whole series since 2018

Source: Copernicus Land Monitoring Service, “Burnt Area 2018-present (raster 300 m), global, monthly – version 4”, monthly Sentinel-3 product, DOI 10.2909/8fa58061-28ab-49bb-9b77-c26b50733e34. Generated using European Union’s Copernicus Land Monitoring Service information; worldfires.org adds up, by country and region, the true area of the 300 m cells where a burn was detected. Latest month published: May 2026. Product page · Methodology

Sources and limits

Fire-page areas are satellite-measured perimeters and may differ from official statistics. The yearly and weekly record is the Copernicus GWIS estimate. The FWI is our own calculation from ERA5 at each fire's location: it is not an official danger warning.

Perimeters: Copernicus EFFIS and GWIS (and MTBS, NIFC or NBAC in North America). Hotspots: NASA FIRMS (VIIRS). Weather: Copernicus ERA5 via Open-Meteo. How it is calculated