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

Extreme rain in Japan, 24 July to 4 August 2026

Extreme rain in Japan, 24 July to 4 August 2026: 70 records at 43 stations, peak on 28 July 2026. Closed.

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

Key Facts

  • Extreme rain in Japan, 24 July to 4 August 2026 set or tied 70 station records at 43 stations.
  • It ran from 24 July 2026 to 4 August 2026 (12 days) and its peak day was 28 July 2026.
  • Status: closed.
  • Akune set a daily record precipitation of 346.0 mm (13.6 in) on 26 July 2026.
  • The busiest day was 28 July 2026 with 18 records.
  • The oldest broken record in the ranked list had stood for 73 years.

Footprint

24 July to 4 August 2026
Footprint of Extreme rain in Japan, 24 July to 4 August 2026 The area covered by Extreme rain in Japan, 24 July to 4 August 2026 is outlined, with 18 of the stations that set records marked, coloured by record type.
The area covered by Extreme rain in Japan, 24 July to 4 August 2026 is outlined, with 18 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Extreme rain in Japan, 24 July to 4 August 2026: stations that set records in the event
StationTypeValueDate
AkuneRecord daily precipitation346.0 mm (13.6 in)2026-07-26
HamadaRecord daily precipitation261.0 mm (10.3 in)2026-07-26
Kure Reg Met HQRecord daily precipitation287.0 mm (11.3 in)2026-07-28
ShimonosekiRecord daily precipitation183.5 mm (7.2 in)2026-07-28
MiyakonojoRecord daily precipitation548.0 mm (21.6 in)2026-07-25
FukuyamaRecord daily precipitation133.5 mm (5.3 in)2026-08-03
HikoneRecord daily precipitation98.5 mm (3.9 in)2026-07-29
SendaiRecord daily precipitation157.5 mm (6.2 in)2026-08-03
MatsueRecord daily precipitation307.0 mm (12.1 in)2026-07-24
MiyazakiRecord daily precipitation328.0 mm (12.9 in)2026-07-25
OitaRecord daily precipitation160.0 mm (6.3 in)2026-07-25
KobeRecord daily precipitation94.0 mm (3.7 in)2026-07-28
KyotoRecord daily precipitation271.0 mm (10.7 in)2026-07-28
SakaiRecord daily precipitation103.5 mm (4.1 in)2026-07-28
IidaRecord daily precipitation135.0 mm (5.3 in)2026-07-28
SumotoRecord daily precipitation74.0 mm (2.9 in)2026-07-31
ChibaRecord daily precipitation86.5 mm (3.4 in)2026-07-29
ChichibuRecord daily precipitation155.5 mm (6.1 in)2026-07-25
TanegashimaRecord daily precipitation430.5 mm (16.9 in)2026-07-25
SuwaRecord daily precipitation141.0 mm (5.6 in)2026-07-28
WakayamaRecord daily precipitation129.5 mm (5.1 in)2026-07-28
NaraRecord daily precipitation52.0 mm (2.0 in)2026-07-31
YokkaichiRecord daily precipitation101.5 mm (4.0 in)2026-07-28
KumagayaRecord daily precipitation206.5 mm (8.1 in)2026-07-29
MatsuyamaRecord daily precipitation72.5 mm (2.9 in)2026-08-03
OshimaRecord daily precipitation125.0 mm (4.9 in)2026-07-31
HitoyoshiRecord daily precipitation223.5 mm (8.8 in)2026-07-28
TottoriRecord daily precipitation92.5 mm (3.6 in)2026-07-31
TajimaRecord daily precipitation63.0 mm (2.5 in)2026-07-29
TokushimaRecord daily precipitation306.0 mm (12.0 in)2026-08-03
YokohamaRecord daily precipitation94.5 mm (3.7 in)2026-08-03
KofuRecord daily precipitation78.0 mm (3.1 in)2026-07-28
KanazawaRecord daily precipitation93.5 mm (3.7 in)2026-07-28
UshibukaRecord daily precipitation117.0 mm (4.6 in)2026-07-26
HiroshimaRecord daily precipitation76.5 mm (3.0 in)2026-07-26
TadotsuRecord daily precipitation49.0 mm (1.9 in)2026-07-31
TateyamaRecord daily precipitation87.5 mm (3.4 in)2026-07-30
TsuRecord daily precipitation40.5 mm (1.6 in)2026-07-28
ShizuokaRecord daily precipitation108.0 mm (4.3 in)2026-08-03
NobeokaRecord daily precipitation78.0 mm (3.1 in)2026-07-25
TakayamaRecord daily precipitation50.0 mm (2.0 in)2026-08-04

Records per Day

Peak day 18
Records per day during Extreme rain in Japan, 24 July to 4 August 2026 Records set or tied each day from 24 July 2026 to 4 August 2026. The most in one day was 18 on 28 July 2026. 0 5 10 15 20 07-2407-2607-2807-3008-0108-03
Records set or tied each day from 24 July 2026 to 4 August 2026. The most in one day was 18 on 28 July 2026.
Records per day during Extreme rain in Japan, 24 July to 4 August 2026
DateRecords
2026-07-244
2026-07-257
2026-07-269
2026-07-272
2026-07-2818
2026-07-298
2026-07-303
2026-07-3110
2026-08-012
2026-08-021
2026-08-035
2026-08-041

Top Records by Margin

Margin over the record replaced
Top records of Extreme rain in Japan, 24 July to 4 August 2026 ranked by margin
Miyakonojo, 07-25411.5 mm (16.2 in)
Kyoto, 07-28234.9 mm (9.2 in)
Akune, 07-26231.3 mm (9.1 in)
Kure Reg Met HQ, 07-28224.0 mm (8.8 in)
Hamada, 07-26202.5 mm (8.0 in)
Miyazaki, 07-25181.5 mm (7.1 in)
Kobe, 07-26174.0 mm (6.9 in)
Miyazaki, 07-28165.5 mm (6.5 in)
Sendai, 08-03144.5 mm (5.7 in)
Shimonoseki, 07-28140.0 mm (5.5 in)
Fukuyama, 07-2899.0 mm (3.9 in)
Iida, 07-2890.8 mm (3.6 in)
Suwa, 07-2888.9 mm (3.5 in)
Sakai, 07-2882.0 mm (3.2 in)
Oita, 07-2581.4 mm (3.2 in)

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 Extreme rain in Japan, 24 July to 4 August 2026 70 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 0125250375500 Margin (mm) Years the old record stood
70 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 Extreme rain in Japan, 24 July to 4 August 2026
Margin (mm)Years the old record stood
23172
20368
14057
22457
41253
14544
6673
4362
16636
18237
8168
8157
8272
23528
9927
17428
9115
6336
5972
894
8727
2965
3515
8016
4056
1338
5215
3863
270
290
7936
2957
5635
5532
1072
3345
6127
517
2919
1837
574
2144
2144
4540
772
2833
468
2545
2445
3235
1939
257
4416
1952
944
2328
298
1728
552
252
444
3716
237
144
28
1127
175
716
023
84

Compared With Other Events

Station records per event
Station records in Extreme rain in Japan, 24 July to 4 August 2026 compared with similar events
Extreme rain in United States and Mexico, 23 February to 15 March 20192,223 records
Extreme rain in United States, 3 to 19 January 20242,133 records
Extreme rain in Australia, 7 to 26 March 20212,099 records
Extreme rain in United States and Mexico, 29 September to 19 October 20181,970 records
Extreme rain in United States, 19 December 2022 to 13 January 20231,941 records
Extreme rain in Japan, 24 July to 4 August 2026 (this event)70 records

Every Record Set

74 of 70
Every record set or tied during Extreme rain in Japan, 24 July to 4 August 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-07-24MatsueRecord daily precipitation307.0 mm (12.1 in)43.2 mm (1.7 in)6259 of 100 (Notable)
2026-07-24NaraRecord daily precipitation46.5 mm (1.8 in)21.0 mm (0.8 in)4430 of 100 (Routine)
2026-07-24SumotoRecord daily precipitation108.5 mm (4.3 in)16.6 mm (0.7 in)514 of 100 (Routine)
2026-07-24ChichibuRecord daily precipitation31.5 mm (1.2 in)0.5 mm (0.02 in)1611 of 100 (Routine)
2026-07-25MiyakonojoRecord daily precipitation548.0 mm (21.6 in)411.5 mm (16.2 in)5363 of 100 (Major)
2026-07-25MiyazakiRecord daily precipitation328.0 mm (12.9 in)181.5 mm (7.1 in)3758 of 100 (Notable)
2026-07-25OitaRecord daily precipitation160.0 mm (6.3 in)81.4 mm (3.2 in)6857 of 100 (Notable)
2026-07-25ChichibuRecord daily precipitation155.5 mm (6.1 in)107.5 mm (4.2 in)548 of 100 (Notable)
2026-07-25TanegashimaRecord daily precipitation430.5 mm (16.9 in)296.4 mm (11.7 in)548 of 100 (Notable)
2026-07-25AkuneRecord daily precipitation180.5 mm (7.1 in)19.0 mm (0.7 in)5226 of 100 (Routine)
2026-07-25KyotoRecord daily precipitation71.0 mm (2.8 in)4.5 mm (0.18 in)5223 of 100 (Routine)
2026-07-25NobeokaRecord daily precipitation78.0 mm (3.1 in)1.0 mm (0.04 in)4419 of 100 (Routine)
2026-07-26AkuneRecord daily precipitation346.0 mm (13.6 in)231.3 mm (9.1 in)7268 of 100 (Major)
2026-07-26HamadaRecord daily precipitation261.0 mm (10.3 in)202.5 mm (8.0 in)6867 of 100 (Major)
2026-07-26KobeRecord daily precipitation238.0 mm (9.4 in)174.0 mm (6.9 in)2855 of 100 (Notable)
2026-07-26MatsueRecord daily precipitation336.0 mm (13.2 in)29.0 mm (1.1 in)036 of 100 (Notable)
2026-07-26MiyakonojoRecord daily precipitation275.5 mm (10.8 in)61.4 mm (2.4 in)2731 of 100 (Routine)
2026-07-26UshibukaRecord daily precipitation117.0 mm (4.6 in)7.3 mm (0.29 in)7229 of 100 (Routine)
2026-07-26HiroshimaRecord daily precipitation76.5 mm (3.0 in)31.5 mm (1.2 in)3527 of 100 (Routine)
2026-07-26Kure Reg Met HQRecord daily precipitation21.0 mm (0.8 in)3.5 mm (0.14 in)6820 of 100 (Routine)
2026-07-26HitoyoshiRecord daily precipitation116.5 mm (4.6 in)10.6 mm (0.4 in)2717 of 100 (Routine)
2026-07-27TanegashimaRecord daily precipitation124.0 mm (4.9 in)54.9 mm (2.2 in)3234 of 100 (Routine)
2026-07-27KofuRecord daily precipitation48.0 mm (1.9 in)24.9 mm (1.0 in)726 of 100 (Routine)
2026-07-28ShimonosekiRecord daily precipitation183.5 mm (7.2 in)140.0 mm (5.5 in)5764 of 100 (Major)
2026-07-28Kure Reg Met HQRecord daily precipitation287.0 mm (11.3 in)224.0 mm (8.8 in)5764 of 100 (Major)
2026-07-28MiyazakiRecord daily precipitation394.0 mm (15.5 in)165.5 mm (6.5 in)3658 of 100 (Notable)
2026-07-28KobeRecord daily precipitation94.0 mm (3.7 in)81.0 mm (3.2 in)5756 of 100 (Notable)
2026-07-28SakaiRecord daily precipitation103.5 mm (4.1 in)82.0 mm (3.2 in)7255 of 100 (Notable)
2026-07-28KyotoRecord daily precipitation271.0 mm (10.7 in)234.9 mm (9.2 in)2855 of 100 (Notable)
2026-07-28FukuyamaRecord daily precipitation146.0 mm (5.7 in)99.0 mm (3.9 in)2755 of 100 (Notable)
2026-07-28IidaRecord daily precipitation135.0 mm (5.3 in)90.8 mm (3.6 in)1551 of 100 (Notable)
2026-07-28SuwaRecord daily precipitation141.0 mm (5.6 in)88.9 mm (3.5 in)448 of 100 (Notable)
2026-07-28WakayamaRecord daily precipitation129.5 mm (5.1 in)86.6 mm (3.4 in)2748 of 100 (Notable)
2026-07-28YokkaichiRecord daily precipitation101.5 mm (4.0 in)80.4 mm (3.2 in)1642 of 100 (Notable)
2026-07-28HitoyoshiRecord daily precipitation223.5 mm (8.8 in)79.0 mm (3.1 in)3636 of 100 (Notable)
2026-07-28KanazawaRecord daily precipitation93.5 mm (3.7 in)50.6 mm (2.0 in)730 of 100 (Routine)
2026-07-28KofuRecord daily precipitation78.0 mm (3.1 in)18.0 mm (0.7 in)3730 of 100 (Routine)
2026-07-28ChichibuRecord daily precipitation154.0 mm (6.1 in)29.0 mm (1.1 in)824 of 100 (Routine)
2026-07-28TsuRecord daily precipitation40.5 mm (1.6 in)17.4 mm (0.7 in)2823 of 100 (Routine)
2026-07-28NaraRecord daily precipitation45.5 mm (1.8 in)22.9 mm (0.9 in)720 of 100 (Routine)
2026-07-29HikoneRecord daily precipitation98.5 mm (3.9 in)66.4 mm (2.6 in)7360 of 100 (Major)
2026-07-29ChibaRecord daily precipitation86.5 mm (3.4 in)62.5 mm (2.5 in)3650 of 100 (Notable)
2026-07-29KumagayaRecord daily precipitation206.5 mm (8.1 in)35.0 mm (1.4 in)1542 of 100 (Notable)
2026-07-29MiyazakiRecord daily precipitation197.0 mm (7.8 in)56.0 mm (2.2 in)3534 of 100 (Routine)
2026-07-29TajimaRecord daily precipitation63.0 mm (2.5 in)9.7 mm (0.38 in)7233 of 100 (Routine)
2026-07-29TadotsuRecord daily precipitation145.0 mm (5.7 in)2.0 mm (0.08 in)819 of 100 (Routine)
2026-07-29OshimaRecord daily precipitation99.0 mm (3.9 in)6.8 mm (0.27 in)1613 of 100 (Routine)
2026-07-30MatsueRecord daily precipitation81.5 mm (3.2 in)23.5 mm (0.9 in)4527 of 100 (Routine)
2026-07-30TateyamaRecord daily precipitation87.5 mm (3.4 in)43.6 mm (1.7 in)1626 of 100 (Routine)
2026-07-30HikoneRecord daily precipitation43.5 mm (1.7 in)0.1 mm (0.00 in)2313 of 100 (Routine)
2026-07-31SumotoRecord daily precipitation74.0 mm (2.9 in)58.9 mm (2.3 in)7250 of 100 (Notable)
2026-07-31NaraRecord daily precipitation52.0 mm (2.0 in)39.5 mm (1.6 in)5642 of 100 (Notable)
2026-07-31ShimonosekiRecord daily precipitation117.5 mm (4.6 in)67.0 mm (2.6 in)5241 of 100 (Notable)
2026-07-31ChichibuRecord daily precipitation101.5 mm (4.0 in)51.5 mm (2.0 in)1539 of 100 (Notable)
2026-07-31OshimaRecord daily precipitation125.0 mm (4.9 in)37.9 mm (1.5 in)6337 of 100 (Notable)
2026-07-31MatsueRecord daily precipitation363.0 mm (14.3 in)27.0 mm (1.1 in)036 of 100 (Notable)
2026-07-31MiyazakiRecord daily precipitation201.5 mm (7.9 in)65.6 mm (2.6 in)3236 of 100 (Notable)
2026-07-31TottoriRecord daily precipitation92.5 mm (3.6 in)28.5 mm (1.1 in)5735 of 100 (Notable)
2026-07-31KumagayaRecord daily precipitation63.5 mm (2.5 in)29.0 mm (1.1 in)1930 of 100 (Routine)
2026-07-31KyotoRecord daily precipitation101.0 mm (4.0 in)57.1 mm (2.2 in)430 of 100 (Routine)
2026-07-31TadotsuRecord daily precipitation49.0 mm (1.9 in)19.0 mm (0.7 in)3927 of 100 (Routine)
2026-07-31TajimaRecord daily precipitation28.0 mm (1.1 in)1.5 mm (0.06 in)5222 of 100 (Routine)
2026-08-01NaraRecord daily precipitation181.0 mm (7.1 in)21.0 mm (0.8 in)4430 of 100 (Routine)
2026-08-01KumagayaRecord daily precipitation130.0 mm (5.1 in)28.4 mm (1.1 in)3328 of 100 (Routine)
2026-08-02OshimaRecord daily precipitation78.0 mm (3.1 in)25.0 mm (1.0 in)4527 of 100 (Routine)
2026-08-03FukuyamaRecord daily precipitation133.5 mm (5.3 in)100.5 mm (4.0 in)4961 of 100 (Major)
2026-08-03SendaiRecord daily precipitation157.5 mm (6.2 in)144.5 mm (5.7 in)4460 of 100 (Major)
2026-08-03Kure Reg Met HQRecord daily precipitation236.0 mm (9.3 in)31.0 mm (1.2 in)5347 of 100 (Notable)
2026-08-03MatsuyamaRecord daily precipitation72.5 mm (2.9 in)33.0 mm (1.3 in)4838 of 100 (Notable)
2026-08-03TokushimaRecord daily precipitation306.0 mm (12.0 in)36.0 mm (1.4 in)1633 of 100 (Routine)
2026-08-03YokohamaRecord daily precipitation94.5 mm (3.7 in)32.5 mm (1.3 in)4532 of 100 (Routine)
2026-08-03ShizuokaRecord daily precipitation108.0 mm (4.3 in)4.0 mm (0.16 in)4421 of 100 (Routine)
2026-08-03TottoriRecord daily precipitation20.5 mm (0.8 in)1.5 mm (0.06 in)4920 of 100 (Routine)
2026-08-04TakayamaRecord daily precipitation50.0 mm (2.0 in)8.1 mm (0.32 in)411 of 100 (Routine)

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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.