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Built 2026-10-19 (19 October 2026)

Heat wave in Thailand and Vietnam, 28 September to 4 October 2026

Heat wave in Thailand and Vietnam, 28 September to 4 October 2026: 47 records at 16 stations, peak on 3 October 2026. Closed.

Data as of . Last revised (2026-10-18).

Key Facts

  • Heat wave in Thailand and Vietnam, 28 September to 4 October 2026 set or tied 47 station records at 16 stations.
  • It ran from 28 September 2026 to 4 October 2026 (7 days) and its peak day was 3 October 2026.
  • Status: closed.
  • Surin set a monthly record high minimum temperature of 26.5 C (79.7 F) on 1 October 2026 (provisional).
  • The busiest day was 2 October 2026 with 12 records.
  • The oldest broken record in the ranked list had stood for 60 years.

Footprint

28 September to 4 October 2026
Footprint of Heat wave in Thailand and Vietnam, 28 September to 4 October 2026 The area covered by Heat wave in Thailand and Vietnam, 28 September to 4 October 2026 is outlined, with 11 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Thailand and Vietnam, 28 September to 4 October 2026 is outlined, with 11 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Thailand and Vietnam, 28 September to 4 October 2026: stations that set records in the event
StationTypeValueDate
SurinRecord high minimum temperature26.5 C (79.7 F)2026-10-01
Nakhon PhanomRecord high minimum temperature28.4 C (83.1 F)2026-10-03
Bangkok MetropolisRecord high minimum temperature27.1 C (80.8 F)2026-10-02
AranyaprathetRecord high maximum temperature35.8 C (96.4 F)2026-10-04
Lop BuriRecord high minimum temperature27.3 C (81.1 F)2026-10-03
MukdahanRecord high maximum temperature36.5 C (97.7 F)2026-10-02
Suphan BuriRecord high minimum temperature26.5 C (79.7 F)2026-10-04
KanchanaburiRecord high minimum temperature26.2 C (79.2 F)2026-10-04
Dong HoiRecord high minimum temperature26.3 C (79.3 F)2026-10-03
Thanh HoaRecord high minimum temperature28.2 C (82.8 F)2026-09-28
Phu LienRecord high minimum temperature27.7 C (81.9 F)2026-09-28
Lang SonRecord high minimum temperature26.1 C (79.0 F)2026-09-29
Cao BangRecord high minimum temperature25.4 C (77.7 F)2026-09-29
Mae SariangRecord high maximum temperature35.5 C (95.9 F)2026-10-02
UttaraditRecord high maximum temperature36.8 C (98.2 F)2026-10-02

Records per Day

Peak day 11
Records per day during Heat wave in Thailand and Vietnam, 28 September to 4 October 2026 Records set or tied each day from 28 September 2026 to 4 October 2026. The most in one day was 12 on 2 October 2026. 0 3 6 9 12 09-2809-2909-3010-0110-0210-0310-04
Records set or tied each day from 28 September 2026 to 4 October 2026. The most in one day was 12 on 2 October 2026.
Records per day during Heat wave in Thailand and Vietnam, 28 September to 4 October 2026
DateRecords
2026-09-286
2026-09-295
2026-09-301
2026-10-016
2026-10-0212
2026-10-0311
2026-10-046

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Thailand and Vietnam, 28 September to 4 October 2026 ranked by margin
Thanh Hoa, 09-292.3 C (4.1 F)
Nakhon Phanom, 10-031.9 C (3.4 F)
Thanh Hoa, 09-281.4 C (2.5 F)
Lop Buri, 10-031.3 C (2.3 F)
Phu Lien, 09-281.2 C (2.2 F)
Aranyaprathet, 10-040.7 C (1.3 F)
Kanchanaburi, 10-040.6 C (1.1 F)
Mukdahan, 10-010.5 C (0.9 F)
Suphan Buri, 10-020.4 C (0.7 F)
Bangkok Metropolis, 10-020.3 C (0.5 F)
Mukdahan, 10-020.3 C (0.5 F)
Dong Hoi, 10-030.3 C (0.5 F)
Mukdahan, 10-020.3 C (0.5 F)
Suphan Buri, 10-040.2 C (0.4 F)
Aranyaprathet, 10-010.2 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 Vietnam, 28 September to 4 October 2026 47 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 15 30 45 60 0.00.61.31.92.5 Margin (C) Years the old record stood
47 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 Vietnam, 28 September to 4 October 2026
Margin (C)Years the old record stood
0.153
1.95
0.360
1.331
0.748
0.322
0.248
0.637
0.215
0.352
0.25
0.16
0.141
0.32
1.411
2.39
0.520
0.420
0.224
1.211
1.211
0.12
0.320
0.321
1.011
0.232
0.712
0.69
1.00
0.611
0.74
0.83
0.47
0.90
0.67
1.11
0.28
0.27
0.27
0.63
0.63
0.47
0.27
0.18
0.15
0.20
0.41

Compared With Other Events

Station records per event
Station records in Heat wave in Thailand and Vietnam, 28 September to 4 October 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 Vietnam, 28 September to 4 October 2026 (this event)47 records

Every Record Set

46 of 47
Every record set or tied during Heat wave in Thailand and Vietnam, 28 September to 4 October 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-09-28Thanh HoaRecord high minimum temperature (provisional)28.2 C (82.8 F)1.4 C (2.5 F)1118 of 100 (Routine)
2026-09-28Phu LienRecord high minimum temperature (provisional)27.7 C (81.9 F)1.2 C (2.2 F)1115 of 100 (Routine)
2026-09-28Dong HoiRecord high maximum temperature (provisional)32.6 C (90.7 F)0.2 C (0.4 F)3214 of 100 (Routine)
2026-09-28Dong HoiRecord high minimum temperature (provisional)26.0 C (78.8 F)0.6 C (1.1 F)1112 of 100 (Routine)
2026-09-28Cao BangRecord high minimum temperature (provisional)25.6 C (78.1 F)1.1 C (2.0 F)111 of 100 (Routine)
2026-09-28Lang SonRecord high minimum temperature (provisional)25.2 C (77.4 F)0.4 C (0.7 F)17 of 100 (Routine)
2026-09-29Thanh HoaRecord high maximum temperature (provisional)36.5 C (97.7 F)2.3 C (4.1 F)916 of 100 (Routine)
2026-09-29Phu LienRecord high minimum temperature (provisional)27.9 C (82.2 F)1.2 C (2.2 F)1115 of 100 (Routine)
2026-09-29Lang SonRecord high minimum temperature (provisional)26.1 C (79.0 F)0.1 C (0.2 F)215 of 100 (Routine)
2026-09-29Cao BangRecord high minimum temperature (provisional)25.4 C (77.7 F)1.0 C (1.8 F)1114 of 100 (Routine)
2026-09-29Thanh HoaRecord high minimum temperature (provisional)28.0 C (82.4 F)1.0 C (1.8 F)012 of 100 (Routine)
2026-09-30SurinRecord high minimum temperature (provisional)26.0 C (78.8 F)0.2 C (0.4 F)2415 of 100 (Routine)
2026-09-30Nakhon PhanomRecord high minimum temperature (tie) (provisional)25.8 C (78.4 F)tie82 of 100 (Routine)
2026-10-01SurinRecord high minimum temperature (provisional)26.5 C (79.7 F)0.1 C (0.2 F)5333 of 100 (Routine)
2026-10-01AranyaprathetRecord high minimum temperature (provisional)26.5 C (79.7 F)0.2 C (0.4 F)1522 of 100 (Routine)
2026-10-01MukdahanRecord high maximum temperature (provisional)35.5 C (95.9 F)0.5 C (0.9 F)2015 of 100 (Routine)
2026-10-01Bangkok MetropolisRecord high maximum temperature (provisional)35.7 C (96.3 F)0.3 C (0.5 F)2114 of 100 (Routine)
2026-10-01MukdahanRecord high minimum temperature (provisional)26.2 C (79.2 F)0.6 C (1.1 F)310 of 100 (Routine)
2026-10-02Bangkok MetropolisRecord high minimum temperature (provisional)27.1 C (80.8 F)0.3 C (0.5 F)6027 of 100 (Routine)
2026-10-02MukdahanRecord high maximum temperature (provisional)36.5 C (97.7 F)0.3 C (0.5 F)2224 of 100 (Routine)
2026-10-02Suphan BuriRecord high minimum temperature (provisional)28.0 C (82.4 F)0.2 C (0.4 F)519 of 100 (Routine)
2026-10-02MukdahanRecord high minimum temperature (provisional)26.7 C (80.1 F)0.3 C (0.5 F)218 of 100 (Routine)
2026-10-02Suphan BuriRecord high maximum temperature (provisional)35.6 C (96.1 F)0.4 C (0.7 F)2015 of 100 (Routine)
2026-10-02Nakhon PhanomRecord high maximum temperature (provisional)35.4 C (95.7 F)0.7 C (1.3 F)1213 of 100 (Routine)
2026-10-02Nakhon PhanomRecord high minimum temperature (provisional)26.1 C (79.0 F)0.7 C (1.3 F)411 of 100 (Routine)
2026-10-02Lop BuriRecord high maximum temperature (provisional)35.7 C (96.3 F)0.4 C (0.7 F)711 of 100 (Routine)
2026-10-02Mae SariangRecord high maximum temperature (provisional)35.5 C (95.9 F)0.2 C (0.4 F)710 of 100 (Routine)
2026-10-02UttaraditRecord high maximum temperature (provisional)36.8 C (98.2 F)0.2 C (0.4 F)710 of 100 (Routine)
2026-10-02UttaraditRecord high minimum temperature (provisional)26.7 C (80.1 F)0.1 C (0.2 F)58 of 100 (Routine)
2026-10-03Nakhon PhanomRecord high minimum temperature (provisional)28.4 C (83.1 F)1.9 C (3.4 F)527 of 100 (Routine)
2026-10-03Lop BuriRecord high minimum temperature (provisional)27.3 C (81.1 F)1.3 C (2.3 F)3125 of 100 (Routine)
2026-10-03Dong HoiRecord high minimum temperature (provisional)26.3 C (79.3 F)0.3 C (0.5 F)5221 of 100 (Routine)
2026-10-03AranyaprathetRecord high minimum temperature (provisional)25.9 C (78.6 F)0.1 C (0.2 F)4119 of 100 (Routine)
2026-10-03SurinRecord high minimum temperature (provisional)25.8 C (78.4 F)0.3 C (0.5 F)2014 of 100 (Routine)
2026-10-03MukdahanRecord high minimum temperature (provisional)26.3 C (79.3 F)0.8 C (1.4 F)311 of 100 (Routine)
2026-10-03SurinRecord high maximum temperature (provisional)35.3 C (95.5 F)0.9 C (1.6 F)011 of 100 (Routine)
2026-10-03Mae SariangRecord high minimum temperature (provisional)24.7 C (76.5 F)0.2 C (0.4 F)810 of 100 (Routine)
2026-10-03UttaraditRecord high minimum temperature (provisional)26.7 C (80.1 F)0.6 C (1.1 F)310 of 100 (Routine)
2026-10-03Bangkok MetropolisRecord high minimum temperature (provisional)27.4 C (81.3 F)0.2 C (0.4 F)710 of 100 (Routine)
2026-10-03MukdahanRecord high maximum temperature (tie) (provisional)35.7 C (96.3 F)tie72 of 100 (Routine)
2026-10-03Suphan BuriRecord high minimum temperature (tie) (provisional)26.6 C (79.9 F)tie132 of 100 (Routine)
2026-10-04AranyaprathetRecord high maximum temperature (provisional)35.8 C (96.4 F)0.7 C (1.3 F)4825 of 100 (Routine)
2026-10-04Suphan BuriRecord high minimum temperature (provisional)26.5 C (79.7 F)0.2 C (0.4 F)4822 of 100 (Routine)
2026-10-04KanchanaburiRecord high minimum temperature (provisional)26.2 C (79.2 F)0.6 C (1.1 F)3722 of 100 (Routine)
2026-10-04Lop BuriRecord high minimum temperature (provisional)27.6 C (81.7 F)0.1 C (0.2 F)619 of 100 (Routine)
2026-10-04SurinRecord high minimum temperature (provisional)26.2 C (79.2 F)0.6 C (1.1 F)912 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 46 of the 47 records the event counts. The counts above use the full total.

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 2026-10-18. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.