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TH · Countries

Wildfires in Thailand

4,526 fires over 1,000 hectares with a perimeter estimated by GWIS since 2016, adding up to 12,800,634 hectares burned across 307 districts.

Only fires of 1,000 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 season, week by week

Copernicus GWIS

Thailand, at this point in the year: 2,671,187 hectares, 1.2 times the 2012–2025 average.

0 1,964k 3,928k Jan Apr Jul Oct Dec
2026 average 2012–2025 lowest and highest

The GWIS yearly series

2012–2026
Yearly average 2016–20252,302,347 ha
Worst year2020 3,939,322 ha
With a page here4,526 since 2016
121314151617181920212223242526
›See the year-by-year table
Year Fires hectares Source
20266,901 2,671,187 GWIS
20254,998 1,546,618 GWIS
20246,505 1,986,465 GWIS
20239,775 2,878,144 GWIS
20222,264 467,994 GWIS
20216,055 1,654,412 GWIS
202013,841 3,939,322 GWIS
201914,508 3,936,349 GWIS
20183,810 1,030,368 GWIS
20177,400 1,867,002 GWIS
201613,504 3,716,793 GWIS
201510,186 2,553,963 GWIS
201410,527 2,791,584 GWIS
201310,088 2,624,039 GWIS
20128,742 2,433,230 GWIS

National estimates from Copernicus GWIS, rebuilt from heat detections since 2012.

When it burned: year by year, month by month

Hectares with a perimeter estimated by GWIS by the fire’s starting month, and the largest fire of each year.

JanFebMarAprMayJunJulAugSepOctNovDecΣLargest of the year
2026
57k
227k
2,945k
984k
13k
4,225,510 Mae Sariang 156,979 ha
2025
20k
40k
464k
12k
5k
541,324 Mae Sariang 48,494 ha
2024
220k
434k
152k
12k
1k
818,700 Mae Sariang 44,037 ha
2023
19k
242k
808k
187k
4k
1k
1,261,354 Mae Suai 23,457 ha
2022
8k
26k
60k
14k
1k
108,564 Mueang Mae Hong Son 18,436 ha
2021
29k
341k
225k
6k
3k
604,187 Umphang 26,711 ha
2020
205k
400k
1,037k
116k
2k
1,760,477 Ban Rai 65,377 ha
2019
21k
347k
648k
238k
12k
4k
3k
19k
1,291,970 Mae Sariang 107,025 ha
2018
4k
215k
146k
20k
385,009 Tha Song Yang 31,649 ha
2017
3k
65k
367k
66k
16k
517,916 Mae Sariang 25,654 ha
2016
23k
242k
588k
414k
16k
3k
1,285,623 Ban Rai 82,117 ha

Hectares burned per year

Largest recorded fires

By region

  1. Mae Hong Son Province 1,459,328 ha · 462
  2. Chiang Mai Province 1,067,700 ha · 480
  3. Tak Province 893,904 ha · 422
  4. Kanchanaburi Province 845,761 ha · 293
  5. Chiang Rai Province 541,482 ha · 229
  6. Nan Province 514,268 ha · 227
  7. Lampang Province 485,289 ha · 274
  8. Uthai Thani Province 464,607 ha · 97
  9. Chaiyaphum Province 292,458 ha · 149
  10. Uttaradit Province 290,292 ha · 128
  11. Loei Province 267,101 ha · 148
  12. Kamphaeng Phet Province 257,562 ha · 78

and 40 more regions with less area

Fires in 2026 · 903

Fires in 2025 · 243

Fires in 2024 · 359

Fires in 2023 · 525

Fires in 2022 · 59

Fires in 2021 · 279

Fires in 2020 · 689

Fires in 2019 · 519

Fires in 2018 · 152

Fires in 2017 · 252

Fires in 2016 · 546