# Wildfires in Thailand in 2018

84 fires larger than 1,000 hectares in Thailand in 2018, with 245,990 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.

## The year in a few sentences

- According to Copernicus GWIS, 1,030,368 hectares burned in Thailand in 2018: 40% of the average of the other years from 2012 to 2024 (2,570,775 ha). (Copernicus GWIS)
- The worst week was 9 April to 15 April: 227,270 hectares burned in seven days, 22% of the year according to Copernicus GWIS. (Copernicus GWIS)
- The largest fire was the Tha Song Yang fire, which started on 7 April 2018 and burned 31,578 hectares: 13% of the area of the year's 84 fires with a page. (WorldFires)

## Month by month

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

| Month | Fires | Hectares |
|---|---:|---:|
| January | 0 | 0 |
| February | 0 | 0 |
| March | 53 | 125,864 |
| April | 29 | 117,820 |
| May | 0 | 0 |
| June | 0 | 0 |
| July | 0 | 0 |
| August | 0 | 0 |
| September | 0 | 0 |
| October | 0 | 0 |
| November | 0 | 0 |
| December | 2 | 2,306 |

## Week by week, against other years (Copernicus GWIS)

The average and the band are the Copernicus GWIS climatology for 2012–2025, which includes 2018 itself.

| Week | 2018 | That week | average | lowest and highest |
|---|---:|---:|---:|---:|
| 1 (1 Jan–7 Jan) | 10,802 | 10,802 | 22,101 | 667–87,100 |
| 2 (8 Jan–14 Jan) | 19,649 | 8,847 | 50,926 | 963–240,044 |
| 3 (15 Jan–21 Jan) | 38,222 | 18,573 | 90,989 | 6,323–323,385 |
| 4 (22 Jan–28 Jan) | 56,642 | 18,420 | 160,419 | 44,167–676,868 |
| 5 (29 Jan–4 Feb) | 73,078 | 16,436 | 224,936 | 56,888–810,087 |
| 6 (5 Feb–11 Feb) | 73,078 | 0 | 354,466 | 73,078–966,394 |
| 7 (12 Feb–18 Feb) | 74,542 | 1,464 | 485,174 | 74,542–1,373,251 |
| 8 (19 Feb–25 Feb) | 75,106 | 564 | 648,931 | 75,106–1,697,631 |
| 9 (26 Feb–4 Mar) | 82,029 | 6,923 | 903,982 | 82,029–1,854,965 |
| 10 (5 Mar–11 Mar) | 209,659 | 127,630 | 1,146,285 | 209,659–2,162,392 |
| 11 (12 Mar–18 Mar) | 400,866 | 191,207 | 1,421,200 | 328,443–2,489,306 |
| 12 (19 Mar–25 Mar) | 539,518 | 138,652 | 1,712,152 | 334,779–2,962,052 |
| 13 (26 Mar–1 Apr) | 605,552 | 66,034 | 1,928,230 | 381,527–3,423,913 |
| 14 (2 Apr–8 Apr) | 633,041 | 27,489 | 2,065,622 | 398,868–3,709,441 |
| 15 (9 Apr–15 Apr) | 860,311 | 227,270 | 2,166,508 | 418,567–3,778,979 |
| 16 (16 Apr–22 Apr) | 907,337 | 47,026 | 2,236,205 | 428,096–3,835,389 |
| 17 (23 Apr–29 Apr) | 938,141 | 30,804 | 2,279,805 | 442,771–3,854,710 |
| 18 (30 Apr–6 May) | 938,610 | 469 | 2,304,342 | 445,556–3,861,907 |
| 19 (7 May–13 May) | 941,612 | 3,002 | 2,310,886 | 445,730–3,869,721 |
| 20 (14 May–20 May) | 942,628 | 1,016 | 2,313,608 | 446,785–3,873,607 |
| 21 (21 May–27 May) | 943,034 | 406 | 2,314,538 | 447,145–3,875,108 |
| 22 (28 May–3 Jun) | 943,034 | 0 | 2,314,920 | 447,312–3,875,702 |
| 23 (4 Jun–10 Jun) | 943,034 | 0 | 2,315,285 | 447,474–3,875,702 |
| 24 (11 Jun–17 Jun) | 943,034 | 0 | 2,315,363 | 447,474–3,875,875 |
| 25 (18 Jun–24 Jun) | 943,034 | 0 | 2,315,560 | 447,474–3,876,029 |
| 26 (25 Jun–1 Jul) | 943,034 | 0 | 2,315,689 | 447,474–3,876,029 |
| 27 (2 Jul–8 Jul) | 943,034 | 0 | 2,315,790 | 447,474–3,876,029 |
| 28 (9 Jul–15 Jul) | 943,034 | 0 | 2,315,985 | 447,474–3,876,245 |
| 29 (16 Jul–22 Jul) | 943,232 | 198 | 2,316,120 | 447,681–3,876,472 |
| 30 (23 Jul–29 Jul) | 943,232 | 0 | 2,316,322 | 447,681–3,877,366 |
| 31 (30 Jul–5 Aug) | 943,423 | 191 | 2,316,769 | 447,681–3,877,528 |
| 32 (6 Aug–12 Aug) | 943,857 | 434 | 2,317,441 | 447,681–3,877,528 |
| 33 (13 Aug–19 Aug) | 943,862 | 5 | 2,317,950 | 447,681–3,877,655 |
| 34 (20 Aug–26 Aug) | 943,862 | 0 | 2,318,086 | 447,681–3,877,655 |
| 35 (27 Aug–2 Sept) | 944,103 | 241 | 2,318,284 | 447,681–3,877,812 |
| 36 (3 Sept–9 Sept) | 944,103 | 0 | 2,318,447 | 447,855–3,877,812 |
| 37 (10 Sept–16 Sept) | 944,103 | 0 | 2,318,535 | 447,855–3,877,812 |
| 38 (17 Sept–23 Sept) | 944,103 | 0 | 2,318,574 | 447,855–3,877,812 |
| 39 (24 Sept–30 Sept) | 944,103 | 0 | 2,318,679 | 447,855–3,877,812 |
| 40 (1 Oct–7 Oct) | 944,486 | 383 | 2,318,813 | 447,855–3,877,812 |
| 41 (8 Oct–14 Oct) | 945,454 | 968 | 2,318,967 | 447,855–3,877,812 |
| 42 (15 Oct–21 Oct) | 946,756 | 1,302 | 2,319,117 | 448,240–3,877,812 |
| 43 (22 Oct–28 Oct) | 946,978 | 222 | 2,319,251 | 448,240–3,877,812 |
| 44 (29 Oct–4 Nov) | 949,157 | 2,179 | 2,319,793 | 449,854–3,877,812 |
| 45 (5 Nov–11 Nov) | 949,458 | 301 | 2,320,146 | 451,161–3,878,006 |
| 46 (12 Nov–18 Nov) | 949,458 | 0 | 2,320,590 | 451,161–3,878,702 |
| 47 (19 Nov–25 Nov) | 949,458 | 0 | 2,322,356 | 451,161–3,880,865 |
| 48 (26 Nov–2 Dec) | 949,458 | 0 | 2,326,890 | 451,161–3,885,815 |
| 49 (3 Dec–9 Dec) | 949,458 | 0 | 2,337,596 | 453,261–3,895,484 |
| 50 (10 Dec–16 Dec) | 966,903 | 17,445 | 2,348,691 | 457,494–3,903,515 |
| 51 (17 Dec–23 Dec) | 996,662 | 29,759 | 2,365,816 | 462,810–3,912,916 |
| 52 (24 Dec–30 Dec) | 1,020,420 | 23,758 | 2,382,663 | 465,609–3,927,651 |

## Largest recorded fires

- [Tha Song Yang fire, 7 April 2018](https://worldfires.org/en/fire/tha-song-yang-2018-04.md) · 31,578 ha
- [Tha Song Yang fire, 3 April 2018](https://worldfires.org/en/fire/tha-song-yang-2018-04-2.md) · 31,164 ha
- [Mae Sariang fire, 19 March 2018](https://worldfires.org/en/fire/mae-sariang-2018-03-8.md) · 22,090 ha
- [Mae Sariang fire, 13 March 2018](https://worldfires.org/en/fire/mae-sariang-2018-03-5.md) · 9,657 ha
- [Tha Song Yang fire, 6 April 2018](https://worldfires.org/en/fire/tha-song-yang-2018-04-4.md) · 7,577 ha
- [Sam Ngao fire, 11 March 2018](https://worldfires.org/en/fire/sam-ngao-2018-03-5.md) · 4,112 ha
- [Mueang Tak fire, March 2018](https://worldfires.org/en/fire/mueang-tak-2018-03.md) · 4,100 ha
- [Mae Sariang fire, 20 March 2018](https://worldfires.org/en/fire/mae-sariang-2018-03-7.md) · 4,052 ha
- [Si Sawat fire, 11 March 2018](https://worldfires.org/en/fire/si-sawat-2018-03-2.md) · 3,903 ha
- [Mae Ramat fire, 11 April 2018](https://worldfires.org/en/fire/mae-ramat-2018-04-2.md) · 3,708 ha
- [Mae La Noi fire, March 2018](https://worldfires.org/en/fire/mae-la-noi-2018-03.md) · 3,575 ha
- [Mueang Tak fire, 9 April 2018](https://worldfires.org/en/fire/mueang-tak-2018-04.md) · 3,507 ha
- [Li fire, 5 March 2018](https://worldfires.org/en/fire/li-2018-03-2.md) · 3,500 ha
- [Mae Sariang fire, 23 March 2018](https://worldfires.org/en/fire/mae-sariang-2018-03-13.md) · 3,385 ha
- [Mae Sot fire, 11 April 2018](https://worldfires.org/en/fire/mae-sot-2018-04-3.md) · 3,186 ha
- [Khun Yuam fire, 16 March 2018](https://worldfires.org/en/fire/khun-yuam-2018-03.md) · 3,154 ha
- [Thoen fire, 14 March 2018](https://worldfires.org/en/fire/thoen-2018-03-2.md) · 2,738 ha
- [Mae Ramat fire, 11 April 2018](https://worldfires.org/en/fire/mae-ramat-2018-04-4.md) · 2,622 ha
- [Khun Yuam fire, 17 March 2018](https://worldfires.org/en/fire/khun-yuam-2018-03-3.md) · 2,604 ha
- [Mueang Mae Hong Son fire, 22 March 2018](https://worldfires.org/en/fire/mueang-mae-hong-son-2018-03-3.md) · 2,476 ha

## 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.

## How to cite

WorldFires, “Wildfires in Thailand in 2018”, https://worldfires.org/en/country/thailand/2018 (accessed 9 November 2026). Sources: Copernicus GWIS, WorldFires, NASA FIRMS (VIIRS).

> Experimental site with automatically processed open data: it may contain errors and is not an official emergency service. If there is a fire, call your local emergency number.

Full version with maps: https://worldfires.org/en/country/thailand/2018