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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Heat wave in Japan and 4 other countries, 15 to 22 June 2026

Heat wave in Japan and 4 other countries, 15 to 22 June 2026: 89 records at 66 stations, peak on 19 June 2026. Closed.

Data as of . Last revised (2026-10-17).

Key Facts

  • Heat wave in Japan and 4 other countries, 15 to 22 June 2026 set or tied 89 station records at 66 stations.
  • It ran from 15 June 2026 to 22 June 2026 (8 days) and its peak day was 19 June 2026.
  • Status: closed.
  • Mokpo set a daily record high minimum temperature of 21.7 C (71.1 F) on 17 June 2026.
  • The busiest day was 19 June 2026 with 23 records.
  • The oldest broken record in the ranked list had stood for 89 years.

Footprint

15 to 22 June 2026
Footprint of Heat wave in Japan and 4 other countries, 15 to 22 June 2026 The area covered by Heat wave in Japan and 4 other countries, 15 to 22 June 2026 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Japan and 4 other countries, 15 to 22 June 2026 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Japan and 4 other countries, 15 to 22 June 2026: stations that set records in the event
StationTypeValueDate
MokpoRecord high minimum temperature21.7 C (71.1 F)2026-06-17
KutchanRecord high maximum temperature28.6 C (83.5 F)2026-06-18
MiyazakiRecord high minimum temperature25.9 C (78.6 F)2026-06-20
BusanRecord high minimum temperature23.1 C (73.6 F)2026-06-18
MoriokaRecord high maximum temperature30.9 C (87.6 F)2026-06-17
ObihiroRecord high minimum temperature15.8 C (60.4 F)2026-06-15
YeosuRecord high minimum temperature22.7 C (72.9 F)2026-06-18
AkitaRecord high maximum temperature29.9 C (85.8 F)2026-06-18
BugtRecord high minimum temperature15.4 C (59.7 F)2026-06-19
YanjiRecord high minimum temperature18.9 C (66.0 F)2026-06-19
AburatsuRecord high minimum temperature26.6 C (79.9 F)2026-06-20
RumoiRecord high minimum temperature18.9 C (66.0 F)2026-06-18
EsashiRecord high maximum temperature28.6 C (83.5 F)2026-06-18
HumaRecord high minimum temperature19.9 C (67.8 F)2026-06-20
SuttsuRecord high minimum temperature17.6 C (63.7 F)2026-06-18
WakkanaiRecord high minimum temperature16.2 C (61.2 F)2026-06-17
NaganoRecord high minimum temperature22.1 C (71.8 F)2026-06-19
KyotoRecord high minimum temperature24.1 C (75.4 F)2026-06-19
HikoneRecord high minimum temperature24.1 C (75.4 F)2026-06-19
Erofej PavlovicRecord high minimum temperature17.0 C (62.6 F)2026-06-20
NaraRecord high minimum temperature22.9 C (73.2 F)2026-06-19
IwamizawaRecord high minimum temperature17.6 C (63.7 F)2026-06-18
NagasakiRecord high minimum temperature24.1 C (75.4 F)2026-06-19
OwaseRecord high maximum temperature34.4 C (93.9 F)2026-06-21
IncheonRecord high minimum temperature21.9 C (71.4 F)2026-06-17
Kure Reg Met HQRecord high minimum temperature22.4 C (72.3 F)2026-06-18
KanazawaRecord high minimum temperature23.1 C (73.6 F)2026-06-19
SaigoRecord high minimum temperature21.6 C (70.9 F)2026-06-19
TokushimaRecord high minimum temperature23.6 C (74.5 F)2026-06-19
Sasebo Reg Met HQRecord high minimum temperature23.6 C (74.5 F)2026-06-16
TongheRecord high minimum temperature22.7 C (72.9 F)2026-06-19
SumotoRecord high minimum temperature23.4 C (74.1 F)2026-06-19
HaboroRecord high minimum temperature17.9 C (64.2 F)2026-06-18
FujinRecord high minimum temperature21.1 C (70.0 F)2026-06-19
SinuijuRecord high minimum temperature20.4 C (68.7 F)2026-06-20
ChuncheonRecord high minimum temperature22.4 C (72.3 F)2026-06-17
AndaRecord high minimum temperature21.6 C (70.9 F)2026-06-18
ShangzhiRecord high minimum temperature21.0 C (69.8 F)2026-06-19
SunwuRecord high minimum temperature20.3 C (68.5 F)2026-06-20
MishimaRecord high maximum temperature32.5 C (90.5 F)2026-06-21
HamadaRecord high minimum temperature22.9 C (73.2 F)2026-06-19
HitaRecord high minimum temperature23.6 C (74.5 F)2026-06-19
WonsanRecord high minimum temperature20.2 C (68.4 F)2026-06-16
NenjiangRecord high minimum temperature19.9 C (67.8 F)2026-06-20
ShimizuRecord high maximum temperature30.6 C (87.1 F)2026-06-21
UrakawaRecord high minimum temperature17.1 C (62.8 F)2026-06-18
HiradoRecord high minimum temperature23.6 C (74.5 F)2026-06-19
UlleungdoRecord high minimum temperature21.6 C (70.9 F)2026-06-19
OmaezakiRecord high maximum temperature28.8 C (83.8 F)2026-06-21
ShinjoRecord high maximum temperature31.1 C (88.0 F)2026-06-17
ChunggangRecord high minimum temperature17.1 C (62.8 F)2026-06-17
TomakomaiRecord high minimum temperature15.8 C (60.4 F)2026-06-18
TanegashimaRecord high minimum temperature26.1 C (79.0 F)2026-06-20
MurotomisakiRecord high minimum temperature23.4 C (74.1 F)2026-06-20
SapporoRecord high minimum temperature18.9 C (66.0 F)2026-06-18
IzuharaRecord high minimum temperature22.6 C (72.7 F)2026-06-18
IlyinskiyRecord high minimum temperature12.7 C (54.9 F)2026-06-18
FukauraRecord high minimum temperature20.1 C (68.2 F)2026-06-20
MiyakonojoRecord high minimum temperature24.8 C (76.6 F)2026-06-20
AkuneRecord high maximum temperature29.9 C (85.8 F)2026-06-16

Records per Day

Peak day 23
Records per day during Heat wave in Japan and 4 other countries, 15 to 22 June 2026 Records set or tied each day from 15 June 2026 to 22 June 2026. The most in one day was 23 on 19 June 2026. 0 6 13 19 25 06-1506-1606-1706-1806-1906-2006-2106-22
Records set or tied each day from 15 June 2026 to 22 June 2026. The most in one day was 23 on 19 June 2026.
Records per day during Heat wave in Japan and 4 other countries, 15 to 22 June 2026
DateRecords
2026-06-154
2026-06-168
2026-06-1710
2026-06-1822
2026-06-1923
2026-06-2015
2026-06-216
2026-06-221

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Japan and 4 other countries, 15 to 22 June 2026 ranked by margin
Busan, 06-182.9 C (5.2 F)
Esashi, 06-182.6 C (4.7 F)
Kutchan, 06-182.2 C (4.0 F)
Aburatsu, 06-202.1 C (3.8 F)
Rumoi, 06-182.0 C (3.6 F)
Yeosu, 06-181.7 C (3.1 F)
Morioka, 06-171.3 C (2.3 F)
Huma, 06-201.3 C (2.3 F)
Suttsu, 06-181.3 C (2.3 F)
Mokpo, 06-171.1 C (2.0 F)
Miyazaki, 06-201.0 C (1.8 F)
Obihiro, 06-150.9 C (1.6 F)
Nagano, 06-190.9 C (1.6 F)
Kyoto, 06-190.9 C (1.6 F)
Hikone, 06-190.9 C (1.6 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 Japan and 4 other countries, 15 to 22 June 2026 89 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 25 50 75 100 0.01.02.03.04.0 Margin (C) Years the old record stood
89 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 Japan and 4 other countries, 15 to 22 June 2026
Margin (C)Years the old record stood
1.189
2.268
1.075
1.372
2.941
0.964
0.272
0.568
0.172
2.148
1.747
1.356
2.047
2.640
1.347
0.851
0.948
0.947
0.948
0.748
4.013
0.448
0.647
0.348
1.341
0.148
0.148
0.247
0.248
0.641
1.625
1.241
2.819
0.145
0.244
0.241
0.329
0.928
1.423
1.321
0.725
0.917
2.115
1.119
1.516
0.623
1.74
2.112
1.94
0.817
0.817
1.412
1.115
1.50
0.816
1.24
1.10
0.812
1.00
0.80
0.112
0.90
0.70
0.60
1.20
0.19
0.60
0.40
0.28
0.51
0.30
0.30
0.24
0.30
0.50
0.14
0.40
0.71
0.10
0.23
0.10
0.20
0.20
0.20
0.20
0.10
0.10
0.50
0.61

Compared With Other Events

Station records per event
Station records in Heat wave in Japan and 4 other countries, 15 to 22 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 Japan and 4 other countries, 15 to 22 June 2026 (this event)89 records

Every Record Set

97 of 89
Every record set or tied during Heat wave in Japan and 4 other countries, 15 to 22 June 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-06-15ObihiroRecord high minimum temperature15.8 C (60.4 F)0.9 C (1.6 F)6429 of 100 (Routine)
2026-06-15SinuijuRecord high minimum temperature20.5 C (68.9 F)1.5 C (2.7 F)013 of 100 (Routine)
2026-06-15Sasebo Reg Met HQRecord high minimum temperature23.9 C (75.0 F)0.2 C (0.4 F)07 of 100 (Routine)
2026-06-16Sasebo Reg Met HQRecord high minimum temperature23.6 C (74.5 F)0.1 C (0.2 F)4520 of 100 (Routine)
2026-06-16MokpoRecord high minimum temperature22.4 C (72.3 F)0.3 C (0.5 F)2919 of 100 (Routine)
2026-06-16WonsanRecord high minimum temperature20.2 C (68.4 F)0.8 C (1.4 F)1613 of 100 (Routine)
2026-06-16IncheonRecord high minimum temperature21.4 C (70.5 F)1.2 C (2.2 F)413 of 100 (Routine)
2026-06-16YeosuRecord high minimum temperature21.8 C (71.2 F)0.8 C (1.4 F)1212 of 100 (Routine)
2026-06-16BusanRecord high minimum temperature22.0 C (71.6 F)0.7 C (1.3 F)18 of 100 (Routine)
2026-06-16AkuneRecord high maximum temperature29.9 C (85.8 F)0.2 C (0.4 F)07 of 100 (Routine)
2026-06-16PreobrazhenieRecord high minimum temperature14.7 C (58.5 F)0.2 C (0.4 F)07 of 100 (Routine)
2026-06-16FukuokaRecord high minimum temperature (tie)23.8 C (74.8 F)tie485 of 100 (Routine)
2026-06-17MokpoRecord high minimum temperature21.7 C (71.1 F)1.1 C (2.0 F)8941 of 100 (Notable)
2026-06-17MoriokaRecord high maximum temperature30.9 C (87.6 F)1.3 C (2.3 F)7231 of 100 (Routine)
2026-06-17WakkanaiRecord high minimum temperature16.2 C (61.2 F)0.8 C (1.4 F)5124 of 100 (Routine)
2026-06-17IncheonRecord high minimum temperature21.9 C (71.4 F)1.6 C (2.9 F)2521 of 100 (Routine)
2026-06-17ChuncheonRecord high minimum temperature22.4 C (72.3 F)2.1 C (3.8 F)1215 of 100 (Routine)
2026-06-17BusanRecord high minimum temperature22.5 C (72.5 F)1.4 C (2.5 F)1214 of 100 (Routine)
2026-06-17ShinjoRecord high maximum temperature31.1 C (88.0 F)1.2 C (2.2 F)09 of 100 (Routine)
2026-06-17ChunggangRecord high minimum temperature17.1 C (62.8 F)0.2 C (0.4 F)89 of 100 (Routine)
2026-06-17SuttsuRecord high minimum temperature16.9 C (62.4 F)0.3 C (0.5 F)08 of 100 (Routine)
2026-06-17YeosuRecord high minimum temperature (tie)21.7 C (71.1 F)tie122 of 100 (Routine)
2026-06-17PreobrazhenieRecord high minimum temperature (tie)16.6 C (61.9 F)tie31 of 100 (Routine)
2026-06-18KutchanRecord high maximum temperature28.6 C (83.5 F)2.2 C (4.0 F)6832 of 100 (Routine)
2026-06-18BusanRecord high minimum temperature23.1 C (73.6 F)2.9 C (5.2 F)4131 of 100 (Routine)
2026-06-18AkitaRecord high maximum temperature29.9 C (85.8 F)0.1 C (0.2 F)7228 of 100 (Routine)
2026-06-18YeosuRecord high minimum temperature22.7 C (72.9 F)1.7 C (3.1 F)4728 of 100 (Routine)
2026-06-18RumoiRecord high minimum temperature18.9 C (66.0 F)2.0 C (3.6 F)4727 of 100 (Routine)
2026-06-18EsashiRecord high maximum temperature28.6 C (83.5 F)2.6 C (4.7 F)4027 of 100 (Routine)
2026-06-18SuttsuRecord high minimum temperature17.6 C (63.7 F)1.3 C (2.3 F)4726 of 100 (Routine)
2026-06-18IwamizawaRecord high minimum temperature17.6 C (63.7 F)0.4 C (0.7 F)4822 of 100 (Routine)
2026-06-18KutchanRecord high minimum temperature16.6 C (61.9 F)0.1 C (0.2 F)4821 of 100 (Routine)
2026-06-18Kure Reg Met HQRecord high minimum temperature22.4 C (72.3 F)0.2 C (0.4 F)4821 of 100 (Routine)
2026-06-18HaboroRecord high minimum temperature17.9 C (64.2 F)1.4 C (2.5 F)2317 of 100 (Routine)
2026-06-18Erofej PavlovicRecord high minimum temperature15.4 C (59.7 F)0.9 C (1.6 F)1716 of 100 (Routine)
2026-06-18AndaRecord high minimum temperature21.6 C (70.9 F)1.1 C (2.0 F)1915 of 100 (Routine)
2026-06-18IncheonRecord high minimum temperature22.2 C (72.0 F)1.7 C (3.1 F)415 of 100 (Routine)
2026-06-18UrakawaRecord high minimum temperature17.1 C (62.8 F)1.0 C (1.8 F)010 of 100 (Routine)
2026-06-18TomakomaiRecord high minimum temperature15.8 C (60.4 F)0.6 C (1.1 F)09 of 100 (Routine)
2026-06-18SinuijuRecord high minimum temperature20.2 C (68.4 F)0.5 C (0.9 F)19 of 100 (Routine)
2026-06-18SapporoRecord high minimum temperature18.9 C (66.0 F)0.3 C (0.5 F)08 of 100 (Routine)
2026-06-18UrakawaRecord high maximum temperature21.4 C (70.5 F)0.2 C (0.4 F)48 of 100 (Routine)
2026-06-18IzuharaRecord high minimum temperature22.6 C (72.7 F)0.1 C (0.2 F)48 of 100 (Routine)
2026-06-18IlyinskiyRecord high minimum temperature12.7 C (54.9 F)0.1 C (0.2 F)08 of 100 (Routine)
2026-06-18ZhangwuRecord high minimum temperature20.8 C (69.4 F)0.1 C (0.2 F)07 of 100 (Routine)
2026-06-18MatsueRecord high minimum temperature (tie)22.1 C (71.8 F)tie717 of 100 (Routine)
2026-06-18MakurazakiRecord high minimum temperature (tie)24.8 C (76.6 F)tie636 of 100 (Routine)
2026-06-18HumaRecord high minimum temperature (tie)17.8 C (64.0 F)tie193 of 100 (Routine)
2026-06-18IizukaRecord high minimum temperature (tie)23.4 C (74.1 F)tie122 of 100 (Routine)
2026-06-19BugtRecord high minimum temperature15.4 C (59.7 F)0.2 C (0.4 F)7228 of 100 (Routine)
2026-06-19YanjiRecord high minimum temperature18.9 C (66.0 F)0.5 C (0.9 F)6828 of 100 (Routine)
2026-06-19NaganoRecord high minimum temperature22.1 C (71.8 F)0.9 C (1.6 F)4824 of 100 (Routine)
2026-06-19KyotoRecord high minimum temperature24.1 C (75.4 F)0.9 C (1.6 F)4724 of 100 (Routine)
2026-06-19HikoneRecord high minimum temperature24.1 C (75.4 F)0.9 C (1.6 F)4824 of 100 (Routine)
2026-06-19NaraRecord high minimum temperature22.9 C (73.2 F)0.7 C (1.3 F)4823 of 100 (Routine)
2026-06-19NagasakiRecord high minimum temperature24.1 C (75.4 F)0.3 C (0.5 F)4822 of 100 (Routine)
2026-06-19KanazawaRecord high minimum temperature23.1 C (73.6 F)0.1 C (0.2 F)4821 of 100 (Routine)
2026-06-19SaigoRecord high minimum temperature21.6 C (70.9 F)0.2 C (0.4 F)4721 of 100 (Routine)
2026-06-19TokushimaRecord high minimum temperature23.6 C (74.5 F)0.6 C (1.1 F)4121 of 100 (Routine)
2026-06-19TongheRecord high minimum temperature22.7 C (72.9 F)2.8 C (5.0 F)1920 of 100 (Routine)
2026-06-19SumotoRecord high minimum temperature23.4 C (74.1 F)0.2 C (0.4 F)4119 of 100 (Routine)
2026-06-19FujinRecord high minimum temperature21.1 C (70.0 F)0.9 C (1.6 F)2817 of 100 (Routine)
2026-06-19RumoiRecord high minimum temperature17.6 C (63.7 F)1.3 C (2.3 F)2117 of 100 (Routine)
2026-06-19ShangzhiRecord high minimum temperature21.0 C (69.8 F)1.5 C (2.7 F)1615 of 100 (Routine)
2026-06-19HamadaRecord high minimum temperature22.9 C (73.2 F)0.8 C (1.4 F)1714 of 100 (Routine)
2026-06-19HitaRecord high minimum temperature23.6 C (74.5 F)0.8 C (1.4 F)1714 of 100 (Routine)
2026-06-19HiradoRecord high minimum temperature23.6 C (74.5 F)0.1 C (0.2 F)1210 of 100 (Routine)
2026-06-19Sasebo Reg Met HQRecord high minimum temperature24.2 C (75.6 F)0.9 C (1.6 F)010 of 100 (Routine)
2026-06-19UlleungdoRecord high minimum temperature21.6 C (70.9 F)0.7 C (1.3 F)010 of 100 (Routine)
2026-06-19TuliheRecord high minimum temperature13.8 C (56.8 F)0.2 C (0.4 F)37 of 100 (Routine)
2026-06-19TadotsuRecord high minimum temperature22.6 C (72.7 F)0.1 C (0.2 F)07 of 100 (Routine)
2026-06-19YeosuRecord high minimum temperature22.1 C (71.8 F)0.5 C (0.9 F)07 of 100 (Routine)
2026-06-19HaboroRecord high minimum temperature (tie)16.1 C (61.0 F)tie485 of 100 (Routine)
2026-06-19FushikiRecord high minimum temperature (tie)22.8 C (73.0 F)tie485 of 100 (Routine)
2026-06-20MiyazakiRecord high minimum temperature25.9 C (78.6 F)1.0 C (1.8 F)7532 of 100 (Routine)
2026-06-20AburatsuRecord high minimum temperature26.6 C (79.9 F)2.1 C (3.8 F)4828 of 100 (Routine)
2026-06-20HumaRecord high minimum temperature19.9 C (67.8 F)1.3 C (2.3 F)5627 of 100 (Routine)
2026-06-20Erofej PavlovicRecord high minimum temperature17.0 C (62.6 F)4.0 C (7.2 F)1323 of 100 (Routine)
2026-06-20SinuijuRecord high minimum temperature20.4 C (68.7 F)0.7 C (1.3 F)2516 of 100 (Routine)
2026-06-20SunwuRecord high minimum temperature20.3 C (68.5 F)2.1 C (3.8 F)1515 of 100 (Routine)
2026-06-20NenjiangRecord high minimum temperature19.9 C (67.8 F)1.1 C (2.0 F)1513 of 100 (Routine)
2026-06-20TanegashimaRecord high minimum temperature26.1 C (79.0 F)0.1 C (0.2 F)99 of 100 (Routine)
2026-06-20MurotomisakiRecord high minimum temperature23.4 C (74.1 F)0.4 C (0.7 F)09 of 100 (Routine)
2026-06-20EsashiRecord high minimum temperature18.4 C (65.1 F)0.3 C (0.5 F)08 of 100 (Routine)
2026-06-20FukauraRecord high minimum temperature20.1 C (68.2 F)0.5 C (0.9 F)08 of 100 (Routine)
2026-06-20MiyakonojoRecord high minimum temperature24.8 C (76.6 F)0.4 C (0.7 F)08 of 100 (Routine)
2026-06-20KatsuuraRecord high minimum temperature22.4 C (72.3 F)0.2 C (0.4 F)07 of 100 (Routine)
2026-06-20WakayamaRecord high minimum temperature24.9 C (76.8 F)0.2 C (0.4 F)07 of 100 (Routine)
2026-06-20TadotsuRecord high minimum temperature23.1 C (73.6 F)0.1 C (0.2 F)07 of 100 (Routine)
2026-06-21OwaseRecord high maximum temperature34.4 C (93.9 F)0.6 C (1.1 F)4722 of 100 (Routine)
2026-06-21MishimaRecord high maximum temperature32.5 C (90.5 F)0.6 C (1.1 F)2315 of 100 (Routine)
2026-06-21Erofej PavlovicRecord high minimum temperature15.9 C (60.6 F)1.9 C (3.4 F)415 of 100 (Routine)
2026-06-21ShimizuRecord high maximum temperature30.6 C (87.1 F)1.1 C (2.0 F)012 of 100 (Routine)
2026-06-21OmaezakiRecord high maximum temperature28.8 C (83.8 F)0.8 C (1.4 F)010 of 100 (Routine)
2026-06-21TokushimaRecord high maximum temperature31.1 C (88.0 F)0.6 C (1.1 F)09 of 100 (Routine)
2026-06-21IncheonRecord high minimum temperature (tie)22.0 C (71.6 F)tie11 of 100 (Routine)
2026-06-22IncheonRecord high minimum temperature20.8 C (69.4 F)0.2 C (0.4 F)4420 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 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.