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Built 2026-10-14 (14 October 2026)

Heat wave in Thailand and 2 other countries, 20 to 30 June 2026

Heat wave in Thailand and 2 other countries, 20 to 30 June 2026: 51 records at 18 stations, peak on 24 June 2026. Closed.

Data as of . Last revised (2026-10-12).

Key Facts

  • Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 set or tied 51 station records at 18 stations.
  • It ran from 20 June 2026 to 30 June 2026 (11 days) and its peak day was 24 June 2026.
  • Status: closed.
  • Khlong Yai set a daily record high minimum temperature of 28.1 C (82.6 F) on 29 June 2026.
  • The busiest day was 24 June 2026 with 15 records.
  • The oldest broken record in the ranked list had stood for 72 years.

Footprint

20 to 30 June 2026
Footprint of Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 The area covered by Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 is outlined, with 12 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 is outlined, with 12 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Thailand and 2 other countries, 20 to 30 June 2026: stations that set records in the event
StationTypeValueDate
Khlong YaiRecord high minimum temperature28.1 C (82.6 F)2026-06-29
HaikouRecord high minimum temperature29.8 C (85.6 F)2026-06-23
AranyaprathetRecord high maximum temperature36.3 C (97.3 F)2026-06-25
Phu LienRecord high minimum temperature30.4 C (86.7 F)2026-06-24
Nakhon PhanomRecord high maximum temperature36.3 C (97.3 F)2026-06-25
DongfangRecord high minimum temperature32.1 C (89.8 F)2026-06-25
Thanh HoaRecord high minimum temperature31.3 C (88.3 F)2026-06-24
SurinRecord high maximum temperature38.3 C (100.9 F)2026-06-24
Lop BuriRecord high minimum temperature26.7 C (80.1 F)2026-06-29
Dong HoiRecord high minimum temperature30.8 C (87.4 F)2026-06-28
HuiliRecord high minimum temperature20.7 C (69.3 F)2026-06-24
UttaraditRecord high minimum temperature27.0 C (80.6 F)2026-06-27
Lang SonRecord high minimum temperature27.7 C (81.9 F)2026-06-24
Ca MauRecord high minimum temperature28.9 C (84.0 F)2026-06-20
MengziRecord high minimum temperature23.2 C (73.8 F)2026-06-23
Suphan BuriRecord high minimum temperature27.1 C (80.8 F)2026-06-30
MukdahanRecord high minimum temperature28.0 C (82.4 F)2026-06-23
Cao BangRecord high minimum temperature27.5 C (81.5 F)2026-06-24

Records per Day

Peak day 15
Records per day during Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 Records set or tied each day from 20 June 2026 to 30 June 2026. The most in one day was 15 on 24 June 2026. 0 4 8 11 15 06-2006-2206-2306-2406-2506-2706-2806-2906-30
Records set or tied each day from 20 June 2026 to 30 June 2026. The most in one day was 15 on 24 June 2026.
Records per day during Heat wave in Thailand and 2 other countries, 20 to 30 June 2026
DateRecords
2026-06-201
2026-06-223
2026-06-239
2026-06-2415
2026-06-259
2026-06-274
2026-06-284
2026-06-294
2026-06-302

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 ranked by margin
Surin, 06-241.8 C (3.2 F)
Haikou, 06-241.6 C (2.9 F)
Nakhon Phanom, 06-251.5 C (2.7 F)
Dongfang, 06-241.4 C (2.5 F)
Khlong Yai, 06-291.2 C (2.2 F)
Dong Hoi, 06-281.1 C (2.0 F)
Surin, 06-241.0 C (1.8 F)
Haikou, 06-250.9 C (1.6 F)
Aranyaprathet, 06-240.9 C (1.6 F)
Haikou, 06-270.7 C (1.3 F)
Thanh Hoa, 06-250.6 C (1.1 F)
Aranyaprathet, 06-250.5 C (0.9 F)
Haikou, 06-230.4 C (0.7 F)
Phu Lien, 06-240.2 C (0.4 F)
Dongfang, 06-250.2 C (0.4 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 51 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 20 40 60 80 0.00.51.01.52.0 Margin (C) Years the old record stood
51 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Heat wave in Thailand and 2 other countries, 20 to 30 June 2026
Margin (C)Years the old record stood
1.265
0.420
0.572
1.553
0.210
0.20
0.268
1.624
1.437
0.11
0.933
1.828
0.252
0.651
0.251
0.249
1.140
0.728
0.928
1.015
1.423
0.80
0.139
0.428
1.616
0.517
0.715
0.228
0.20
1.216
0.712
0.219
0.87
0.64
0.316
0.616
0.216
0.423
0.94
0.87
0.53
0.75
0.221
0.43
0.27
0.77
0.25
0.67
0.25
0.111
0.13

Compared With Other Events

Station records per event
Station records in Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 20249,869 records
Heat wave in United States, 28 January to 24 February 20266,528 records
Heat wave in United States and Mexico, 24 May to 19 June 20205,047 records
Heat wave in United States and Mexico, 26 March to 17 April 20213,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 20223,626 records
Heat wave in Thailand and 2 other countries, 20 to 30 June 2026 (this event)51 records

Every Record Set

54 of 51
Every record set or tied during Heat wave in Thailand and 2 other countries, 20 to 30 June 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-06-20Ca MauRecord high minimum temperature28.9 C (84.0 F)0.7 C (1.3 F)1214 of 100 (Routine)
2026-06-22Khlong YaiRecord high minimum temperature26.1 C (79.0 F)0.2 C (0.4 F)6828 of 100 (Routine)
2026-06-22SurinRecord high minimum temperature27.2 C (81.0 F)0.2 C (0.4 F)710 of 100 (Routine)
2026-06-22Dong HoiRecord high minimum temperature32.0 C (89.6 F)0.7 C (1.3 F)710 of 100 (Routine)
2026-06-22DongfangRecord high minimum temperature (tie)30.5 C (86.9 F)tie42 of 100 (Routine)
2026-06-23HaikouRecord high minimum temperature29.8 C (85.6 F)0.4 C (0.7 F)2036 of 100 (Notable)
2026-06-23SurinRecord high minimum temperature27.2 C (81.0 F)0.4 C (0.7 F)2818 of 100 (Routine)
2026-06-23AranyaprathetRecord high minimum temperature27.2 C (81.0 F)0.2 C (0.4 F)2816 of 100 (Routine)
2026-06-23MengziRecord high minimum temperature23.2 C (73.8 F)0.2 C (0.4 F)1913 of 100 (Routine)
2026-06-23DongfangRecord high minimum temperature31.1 C (88.0 F)0.8 C (1.4 F)713 of 100 (Routine)
2026-06-23Phu LienRecord high minimum temperature29.2 C (84.6 F)0.6 C (1.1 F)1613 of 100 (Routine)
2026-06-23Lang SonRecord high minimum temperature26.6 C (79.9 F)0.9 C (1.6 F)412 of 100 (Routine)
2026-06-23Thanh HoaRecord high minimum temperature30.5 C (86.9 F)0.8 C (1.4 F)712 of 100 (Routine)
2026-06-23MukdahanRecord high minimum temperature28.0 C (82.4 F)0.5 C (0.9 F)311 of 100 (Routine)
2026-06-24Phu LienRecord high minimum temperature30.4 C (86.7 F)0.2 C (0.4 F)1029 of 100 (Routine)
2026-06-24HaikouRecord high minimum temperature28.8 C (83.8 F)1.6 C (2.9 F)2427 of 100 (Routine)
2026-06-24DongfangRecord high minimum temperature31.6 C (88.9 F)1.4 C (2.5 F)3725 of 100 (Routine)
2026-06-24Thanh HoaRecord high minimum temperature31.3 C (88.3 F)0.1 C (0.2 F)125 of 100 (Routine)
2026-06-24SurinRecord high maximum temperature38.3 C (100.9 F)1.8 C (3.2 F)2824 of 100 (Routine)
2026-06-24HuiliRecord high minimum temperature20.7 C (69.3 F)0.2 C (0.4 F)5122 of 100 (Routine)
2026-06-24AranyaprathetRecord high maximum temperature37.0 C (98.6 F)0.9 C (1.6 F)2820 of 100 (Routine)
2026-06-24SurinRecord high minimum temperature27.3 C (81.1 F)1.0 C (1.8 F)1519 of 100 (Routine)
2026-06-24Dong HoiRecord high minimum temperature33.0 C (91.4 F)0.8 C (1.4 F)019 of 100 (Routine)
2026-06-24Phu LienRecord high maximum temperature36.4 C (97.5 F)1.6 C (2.9 F)1617 of 100 (Routine)
2026-06-24Nakhon PhanomRecord high minimum temperature27.6 C (81.7 F)0.5 C (0.9 F)1716 of 100 (Routine)
2026-06-24Lang SonRecord high minimum temperature27.7 C (81.9 F)0.2 C (0.4 F)016 of 100 (Routine)
2026-06-24Cao BangRecord high minimum temperature27.5 C (81.5 F)0.7 C (1.3 F)511 of 100 (Routine)
2026-06-24Thanh HoaRecord high maximum temperature38.5 C (101.3 F)0.2 C (0.4 F)2111 of 100 (Routine)
2026-06-24Dong HoiRecord high maximum temperature39.6 C (103.3 F)0.6 C (1.1 F)79 of 100 (Routine)
2026-06-25AranyaprathetRecord high maximum temperature36.3 C (97.3 F)0.5 C (0.9 F)7230 of 100 (Routine)
2026-06-25Nakhon PhanomRecord high maximum temperature36.3 C (97.3 F)1.5 C (2.7 F)5329 of 100 (Routine)
2026-06-25DongfangRecord high minimum temperature32.1 C (89.8 F)0.2 C (0.4 F)028 of 100 (Routine)
2026-06-25HaikouRecord high minimum temperature28.5 C (83.3 F)0.9 C (1.6 F)3324 of 100 (Routine)
2026-06-25Thanh HoaRecord high minimum temperature29.6 C (85.3 F)0.6 C (1.1 F)5123 of 100 (Routine)
2026-06-25Phu LienRecord high minimum temperature29.6 C (85.3 F)1.4 C (2.5 F)2319 of 100 (Routine)
2026-06-25Phu LienRecord high maximum temperature35.8 C (96.4 F)0.4 C (0.7 F)2312 of 100 (Routine)
2026-06-25SurinRecord high maximum temperature37.4 C (99.3 F)0.2 C (0.4 F)59 of 100 (Routine)
2026-06-25MukdahanRecord high maximum temperature37.4 C (99.3 F)0.2 C (0.4 F)58 of 100 (Routine)
2026-06-27UttaraditRecord high minimum temperature27.0 C (80.6 F)0.2 C (0.4 F)4922 of 100 (Routine)
2026-06-27HaikouRecord high minimum temperature28.1 C (82.6 F)0.7 C (1.3 F)2821 of 100 (Routine)
2026-06-27SurinRecord high minimum temperature26.7 C (80.1 F)0.7 C (1.3 F)1516 of 100 (Routine)
2026-06-27Dong HoiRecord high minimum temperature31.6 C (88.9 F)1.2 C (2.2 F)1615 of 100 (Routine)
2026-06-27Lop BuriRecord high minimum temperature (tie)26.5 C (79.7 F)tie42 of 100 (Routine)
2026-06-28Dong HoiRecord high minimum temperature30.8 C (87.4 F)1.1 C (2.0 F)4022 of 100 (Routine)
2026-06-28Ca MauRecord high minimum temperature28.2 C (82.8 F)0.7 C (1.3 F)1214 of 100 (Routine)
2026-06-28DongfangRecord high minimum temperature30.6 C (87.1 F)0.2 C (0.4 F)1612 of 100 (Routine)
2026-06-28Suphan BuriRecord high minimum temperature27.0 C (80.6 F)0.4 C (0.7 F)310 of 100 (Routine)
2026-06-28Khlong YaiRecord high minimum temperature (tie)25.9 C (78.6 F)tie334 of 100 (Routine)
2026-06-29Khlong YaiRecord high minimum temperature28.1 C (82.6 F)1.2 C (2.2 F)6537 of 100 (Notable)
2026-06-29Lop BuriRecord high minimum temperature26.7 C (80.1 F)0.2 C (0.4 F)5223 of 100 (Routine)
2026-06-29Dong HoiRecord high minimum temperature30.2 C (86.4 F)0.1 C (0.2 F)118 of 100 (Routine)
2026-06-29Suphan BuriRecord high minimum temperature26.8 C (80.2 F)0.1 C (0.2 F)37 of 100 (Routine)
2026-06-30Suphan BuriRecord high minimum temperature27.1 C (80.8 F)0.6 C (1.1 F)413 of 100 (Routine)
2026-06-30Lop BuriRecord high minimum temperature26.8 C (80.2 F)0.3 C (0.5 F)1613 of 100 (Routine)

Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.