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Yonaguni-Jima Weather Records (JA000047912)

Record envelope, standing records and threshold days for Yonaguni-Jima (JA000047912), Japan, with 33 years of record.

Key Facts for Yonaguni-Jima

  • Yonaguni-Jima (JA000047912) is a weather station in Japan at 24.47 latitude and 123.02 longitude, 108 m (354 ft) above sea level.
  • The station reports from 1957 to 1989, 33 years of record.
  • 1,464 records set at Yonaguni-Jima still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Yonaguni-Jima set a daily record low minimum temperature of 12.0 C (53.6 F) on 7 December 1989.

About the Station

  • Location: Japan, 24.47 latitude, 123.02 longitude.
  • Elevation: 108 m (354 ft).
  • Period of record: 1957 to 1989, 33 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Yonaguni-Jima, with 2026 drawn through them The band shows the record high and record low for each calendar day at Yonaguni-Jima. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Yonaguni-Jima. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Yonaguni-Jima, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan27.5 C (81.5 F)7.7 C (45.9 F)n/an/a
Feb27.4 C (81.3 F)8.4 C (47.1 F)n/an/a
Mar28.6 C (83.5 F)9.0 C (48.2 F)n/an/a
Apr30.0 C (86.0 F)12.1 C (53.8 F)n/an/a
May31.1 C (88.0 F)15.0 C (59.0 F)n/an/a
Jun32.7 C (90.9 F)17.6 C (63.7 F)n/an/a
Jul34.2 C (93.6 F)21.9 C (71.4 F)n/an/a
Aug33.6 C (92.5 F)21.7 C (71.1 F)n/an/a
Sep33.5 C (92.3 F)18.2 C (64.8 F)n/an/a
Oct31.2 C (88.2 F)16.2 C (61.2 F)n/an/a
Nov29.5 C (85.1 F)13.9 C (57.0 F)n/an/a
Dec27.5 C (81.5 F)9.1 C (48.4 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Yonaguni-Jima by the year they were set 1,464 records at Yonaguni-Jima still stand. 1966 holds the most, with 73. 0204060801957: 381958: 411959: 351960: 311961: 321962: 511963: 561964: 491965: 241966: 731967: 431968: 541969: 471970: 331971: 301972: 641973: 301974: 531975: 451976: 501977: 491978: 371979: 391980: 471981: 411982: 371983: 601984: 291985: 271986: 181987: 671988: 651989: 69195719611965196919731977198119851989
1,464 records at Yonaguni-Jima still stand. 1966 holds the most, with 73.
Standing records at Yonaguni-Jima by the year they were set
Year setStanding records
195738
195841
195935
196031
196132
196251
196356
196449
196524
196673
196743
196854
196947
197033
197130
197264
197330
197453
197545
197650
197749
197837
197939
198047
198141
198237
198360
198429
198527
198618
198767
198865
198969

All-Time Record Progression

2 new records
When Yonaguni-Jima set new all-time records 2 all-time records were set at Yonaguni-Jima between 20 July 1988 and 10 July 1989. Each dot is a new record. Record high minimum temperature20 July 1988: Record high minimum temperature 28.8 C (83.8 F)10 July 1989: Record high minimum temperature 28.9 C (84.0 F)1990
2 all-time records were set at Yonaguni-Jima between 20 July 1988 and 10 July 1989. Each dot is a new record.
When Yonaguni-Jima set new all-time records
DateKindDetail
1988-07-20Record high minimum temperatureRecord high minimum temperature 28.8 C (83.8 F)
1989-07-10Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)

Wettest Day of Each Month

Aug: 286.5 mm (11.3 in)
Record daily precipitation for each month at Yonaguni-Jima The wettest day on record for each calendar month at Yonaguni-Jima. The most was 286.5 mm (11.3 in) on 9 August 1976. 0100200300 Jan: 167.0 mm (6.6 in), 28 January 1979 Jan Feb: 143.5 mm (5.6 in), 12 February 1971 Feb Mar: 262.5 mm (10.3 in), 26 March 1966 Mar Apr: 221.5 mm (8.7 in), 29 April 1981 Apr May: 228.6 mm (9.0 in), 26 May 1961 May Jun: 231.5 mm (9.1 in), 27 June 1976 Jun Jul: 189.0 mm (7.4 in), 26 July 1968 Jul Aug: 286.5 mm (11.3 in), 9 August 1976 Aug Sep: 263.5 mm (10.4 in), 12 September 1978 Sep Oct: 223.5 mm (8.8 in), 4 October 1985 Oct Nov: 141.5 mm (5.6 in), 15 November 1977 Nov Dec: 132.0 mm (5.2 in), 21 December 1983 Dec
The wettest day on record for each calendar month at Yonaguni-Jima. The most was 286.5 mm (11.3 in) on 9 August 1976.
Record daily precipitation for each month at Yonaguni-Jima
MonthRecord daily precipitation (mm)Date
Jan167.0 mm (6.6 in)28 January 1979
Feb143.5 mm (5.6 in)12 February 1971
Mar262.5 mm (10.3 in)26 March 1966
Apr221.5 mm (8.7 in)29 April 1981
May228.6 mm (9.0 in)26 May 1961
Jun231.5 mm (9.1 in)27 June 1976
Jul189.0 mm (7.4 in)26 July 1968
Aug286.5 mm (11.3 in)9 August 1976
Sep263.5 mm (10.4 in)12 September 1978
Oct223.5 mm (8.8 in)4 October 1985
Nov141.5 mm (5.6 in)15 November 1977
Dec132.0 mm (5.2 in)21 December 1983

Period of Record Coverage

1957 to 1989
Days with data per year at Yonaguni-Jima 33 years of record at Yonaguni-Jima, 1957 to 1989. Every year has data for at least 90 percent of its days. 1957: 357 of 365 days1958: 355 of 365 days1959: 351 of 365 days1960: 357 of 366 days1961: 359 of 365 days1962: 359 of 365 days1963: 357 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days196019651970197519801985
33 years of record at Yonaguni-Jima, 1957 to 1989. Every year has data for at least 90 percent of its days.
Days with data per year at Yonaguni-Jima
YearDays with dataShare of yearComplete
195735798%Yes
195835597%Yes
195935196%Yes
196035798%Yes
196135998%Yes
196235998%Yes
196335798%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes

Latest Records

20
Latest records at Yonaguni-Jima
DateStationRecordValueBeat old record byOld record stoodSignificance
7 December 1989Yonaguni-Jima, JPdaily low min12.0 C (53.6 F)1.7 C (3.1 F)0 years9 of 100 (Routine)
5 December 1989Yonaguni-Jima, JPdaily low min13.8 C (56.8 F)0.7 C (1.3 F)2 years5 of 100 (Routine)
30 November 1989Yonaguni-Jima, JPdaily low max17.8 C (64.0 F)0.4 C (0.7 F)18 years9 of 100 (Routine)
29 November 1989Yonaguni-Jima, JPdaily low min (Tie)14.4 C (57.9 F)tie0 years0 of 100 (Routine)
23 November 1989Yonaguni-Jima, JPdaily rain88.5 mm (3.5 in)1.5 mm (0.06 in)4 years4 of 100 (Routine)
22 November 1989Yonaguni-Jima, JPdaily rain32.0 mm (1.3 in)13.0 mm (0.5 in)4 years9 of 100 (Routine)
17 October 1989Yonaguni-Jima, JPdaily low max22.7 C (72.9 F)1.8 C (3.2 F)26 years19 of 100 (Routine)
17 October 1989Yonaguni-Jima, JPdaily low min20.0 C (68.0 F)0.2 C (0.4 F)18 years9 of 100 (Routine)
16 October 1989Yonaguni-Jima, JPdaily low min19.5 C (67.1 F)0.4 C (0.7 F)27 years13 of 100 (Routine)
9 October 1989Yonaguni-Jima, JPdaily low max24.5 C (76.1 F)1.2 C (2.2 F)20 years15 of 100 (Routine)
8 October 1989Yonaguni-Jima, JPdaily low max24.5 C (76.1 F)0.7 C (1.3 F)32 years15 of 100 (Routine)
28 September 1989Yonaguni-Jima, JPdaily high max (Tie)30.3 C (86.5 F)tie20 years2 of 100 (Routine)
27 September 1989Yonaguni-Jima, JPdaily low min22.5 C (72.5 F)0.3 C (0.5 F)32 years14 of 100 (Routine)
13 September 1989Yonaguni-Jima, JPdaily high min (Tie)27.2 C (81.0 F)tie31 years3 of 100 (Routine)
29 August 1989Yonaguni-Jima, JPdaily high min27.7 C (81.9 F)0.5 C (0.9 F)30 years16 of 100 (Routine)
13 August 1989Yonaguni-Jima, JPdaily high max (Tie)32.0 C (89.6 F)tie2 years0 of 100 (Routine)
28 July 1989Yonaguni-Jima, JPdaily low max (Tie)28.4 C (83.1 F)tie16 years2 of 100 (Routine)
23 July 1989Yonaguni-Jima, JPdaily low min23.1 C (73.6 F)0.3 C (0.5 F)27 years13 of 100 (Routine)
18 July 1989Yonaguni-Jima, JPdaily high max33.3 C (91.9 F)0.1 C (0.2 F)27 years11 of 100 (Routine)
15 July 1989Yonaguni-Jima, JPdaily high max33.8 C (92.8 F)0.6 C (1.1 F)18 years13 of 100 (Routine)

Climate Trend

33 complete years, 1957 to 1989
Annual mean temperature at Yonaguni-Jima as warming stripes, 1957 to 1989 One stripe for each of 33 complete years at Yonaguni-Jima, 1957 to 1989. Blue stripes are years cooler than the station's own mean of 23.6 C (74.5 F); red stripes are warmer. The coolest year was 1968, at 22.9 C (73.3 F), and the warmest was 1987, at 24.1 C (75.5 F). The strongest colour marks a difference of 0.8 C (1.4 F). 1957: 23.7 C, +0.1 C from the station mean1958: 23.8 C, +0.1 C from the station mean1959: 24.0 C, +0.4 C from the station mean1960: 24.0 C, +0.4 C from the station mean1961: 23.9 C, +0.3 C from the station mean1962: 23.5 C, -0.2 C from the station mean1963: 23.2 C, -0.4 C from the station mean1964: 23.9 C, +0.3 C from the station mean1965: 23.5 C, -0.2 C from the station mean1966: 23.9 C, +0.3 C from the station mean1967: 23.2 C, -0.4 C from the station mean1968: 22.9 C, -0.7 C from the station mean1969: 23.6 C, -0.1 C from the station mean1970: 23.5 C, -0.2 C from the station mean1971: 23.3 C, -0.4 C from the station mean1972: 23.4 C, -0.2 C from the station mean1973: 23.9 C, +0.3 C from the station mean1974: 23.5 C, -0.2 C from the station mean1975: 23.7 C, +0.1 C from the station mean1976: 23.4 C, -0.3 C from the station mean1977: 23.9 C, +0.3 C from the station mean1978: 23.5 C, -0.1 C from the station mean1979: 23.6 C, 0.0 C from the station mean1980: 23.8 C, +0.2 C from the station mean1981: 23.4 C, -0.2 C from the station mean1982: 23.6 C, 0.0 C from the station mean1983: 24.0 C, +0.3 C from the station mean1984: 23.4 C, -0.2 C from the station mean1985: 23.7 C, +0.1 C from the station mean1986: 23.4 C, -0.2 C from the station mean1987: 24.1 C, +0.5 C from the station mean1988: 24.1 C, +0.5 C from the station mean1989: 23.6 C, 0.0 C from the station mean1957196019651970197519801985
One stripe for each of 33 complete years at Yonaguni-Jima, 1957 to 1989. Blue stripes are years cooler than the station's own mean of 23.6 C (74.5 F); red stripes are warmer. The coolest year was 1968, at 22.9 C (73.3 F), and the warmest was 1987, at 24.1 C (75.5 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Yonaguni-Jima as warming stripes, 1957 to 1989
YearAnnual mean temperatureDifference from the station mean
195723.7 C+0.10 C
195823.8 C+0.13 C
195924.0 C+0.37 C
196024.0 C+0.41 C
196123.9 C+0.26 C
196223.5 C-0.18 C
196323.2 C-0.41 C
196423.9 C+0.27 C
196523.5 C-0.17 C
196623.9 C+0.31 C
196723.2 C-0.41 C
196822.9 C-0.71 C
196923.6 C-0.07 C
197023.5 C-0.18 C
197123.3 C-0.37 C
197223.4 C-0.21 C
197323.9 C+0.28 C
197423.5 C-0.16 C
197523.7 C+0.08 C
197623.4 C-0.28 C
197723.9 C+0.26 C
197823.5 C-0.14 C
197923.6 C-0.03 C
198023.8 C+0.20 C
198123.4 C-0.19 C
198223.6 C-0.04 C
198324.0 C+0.32 C
198423.4 C-0.20 C
198523.7 C+0.10 C
198623.4 C-0.23 C
198724.1 C+0.51 C
198824.1 C+0.47 C
198923.6 C0.00 C

The fitted trend in annual mean temperature here over 1957 to 1989 is 0.02 C (-0.09 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.16 to 0.23) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Yonaguni-Jima
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.02 C (-0.09 to 0.13) per decade0.03 F (-0.16 to 0.23) per decade1957 to 198933Not clearly different from zero
Mean daily maximum0.07 C (-0.04 to 0.17) per decade0.1 F (-0.1 to 0.3) per decade1957 to 198933Not clearly different from zero
Mean daily minimum-0.03 C (-0.15 to 0.10) per decade-0.1 F (-0.3 to 0.2) per decade1957 to 198933Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1957 to 1989
Yearly extremes at Yonaguni-Jima: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.2 C (93.6 F)198432.6 C (90.7 F)33
Coldest night (TNn)7.7 C (45.9 F)196710.3 C (50.5 F)33
Wettest day (Rx1day)286.5 mm (11.3 in)1976169.5 mm (6.7 in)33
Wettest five days (Rx5day)529.0 mm (20.8 in)1968258.5 mm (10.2 in)33
Longest dry spell (CDD)30 days198817 days33

Hottest day (TXx)

Hottest day (TXx) at Yonaguni-Jima by year The hottest day of the year at Yonaguni-Jima, 1957 to 1989. The record is 34.2 C (93.6 F) in 1984, marked on the chart; the median year is 32.6 C (90.7 F). 3132333435196019701980Record: 34.2 C (93.6 F) in 1984
The hottest day of the year at Yonaguni-Jima, 1957 to 1989. The record is 34.2 C (93.6 F) in 1984, marked on the chart; the median year is 32.6 C (90.7 F).
Hottest day (TXx) at Yonaguni-Jima by year
YearHottest day (TXx)
195732.6 C (90.7 F)
195832.6 C (90.7 F)
195932.8 C (91.0 F)
196032.8 C (91.0 F)
196132.4 C (90.3 F)
196233.2 C (91.8 F)
196333.5 C (92.3 F)
196433.1 C (91.6 F)
196532.3 C (90.1 F)
196632.2 C (90.0 F)
196732.3 C (90.1 F)
196831.9 C (89.4 F)
196932.6 C (90.7 F)
197032.4 C (90.3 F)
197133.2 C (91.8 F)
197232.6 C (90.7 F)
197331.8 C (89.2 F)
197432.6 C (90.7 F)
197532.4 C (90.3 F)
197632.1 C (89.8 F)
197733.2 C (91.8 F)
197832.9 C (91.2 F)
197932.6 C (90.7 F)
198033.0 C (91.4 F)
198133.1 C (91.6 F)
198232.5 C (90.5 F)
198333.8 C (92.8 F)
198434.2 C (93.6 F)
198532.1 C (89.8 F)
198633.0 C (91.4 F)
198733.6 C (92.5 F)
198833.5 C (92.3 F)
198934.2 C (93.6 F)

Coldest night (TNn)

Coldest night (TNn) at Yonaguni-Jima by year The coldest night of the year at Yonaguni-Jima, 1957 to 1989. The record is 7.7 C (45.9 F) in 1967, marked on the chart; the median year is 10.3 C (50.5 F). 68101214196019701980Record: 7.7 C (45.9 F) in 1967
The coldest night of the year at Yonaguni-Jima, 1957 to 1989. The record is 7.7 C (45.9 F) in 1967, marked on the chart; the median year is 10.3 C (50.5 F).
Coldest night (TNn) at Yonaguni-Jima by year
YearColdest night (TNn)
195710.6 C (51.1 F)
195810.2 C (50.4 F)
19599.8 C (49.6 F)
196010.5 C (50.9 F)
196110.3 C (50.5 F)
196210.3 C (50.5 F)
19638.8 C (47.8 F)
196411.4 C (52.5 F)
19658.8 C (47.8 F)
196612.5 C (54.5 F)
19677.7 C (45.9 F)
196810.2 C (50.4 F)
19699.4 C (48.9 F)
197010.8 C (51.4 F)
197110.8 C (51.4 F)
19729.2 C (48.6 F)
197310.4 C (50.7 F)
19749.7 C (49.5 F)
197511.7 C (53.1 F)
197612.4 C (54.3 F)
19779.3 C (48.7 F)
19789.7 C (49.5 F)
197911.3 C (52.3 F)
19809.7 C (49.5 F)
198111.1 C (52.0 F)
198210.4 C (50.7 F)
198312.0 C (53.6 F)
198410.0 C (50.0 F)
198512.1 C (53.8 F)
19869.8 C (49.6 F)
19878.4 C (47.1 F)
198812.5 C (54.5 F)
198911.6 C (52.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Yonaguni-Jima by year The wettest day of the year at Yonaguni-Jima, 1957 to 1989. The record is 286.5 mm (11.3 in) in 1976, marked on the chart; the median year is 169.5 mm (6.7 in). 50100150200250300196019701980Record: 286.5 mm (11.3 in) in 1976
The wettest day of the year at Yonaguni-Jima, 1957 to 1989. The record is 286.5 mm (11.3 in) in 1976, marked on the chart; the median year is 169.5 mm (6.7 in).
Wettest day (Rx1day) at Yonaguni-Jima by year
YearWettest day (Rx1day)
1957141.5 mm (5.6 in)
1958215.2 mm (8.5 in)
1959178.6 mm (7.0 in)
1960161.9 mm (6.4 in)
1961228.6 mm (9.0 in)
1962154.7 mm (6.1 in)
1963251.6 mm (9.9 in)
196499.1 mm (3.9 in)
1965130.2 mm (5.1 in)
1966262.5 mm (10.3 in)
1967185.0 mm (7.3 in)
1968253.5 mm (10.0 in)
1969184.0 mm (7.2 in)
1970135.0 mm (5.3 in)
1971143.5 mm (5.6 in)
1972169.5 mm (6.7 in)
1973191.5 mm (7.5 in)
1974213.0 mm (8.4 in)
1975122.5 mm (4.8 in)
1976286.5 mm (11.3 in)
1977193.0 mm (7.6 in)
1978263.5 mm (10.4 in)
1979167.0 mm (6.6 in)
1980106.5 mm (4.2 in)
1981221.5 mm (8.7 in)
1982132.5 mm (5.2 in)
1983132.0 mm (5.2 in)
1984128.5 mm (5.1 in)
1985223.5 mm (8.8 in)
1986119.0 mm (4.7 in)
198793.0 mm (3.7 in)
1988184.0 mm (7.2 in)
1989101.0 mm (4.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Yonaguni-Jima by year The wettest five days of the year at Yonaguni-Jima, 1957 to 1989. The record is 529.0 mm (20.8 in) in 1968, marked on the chart; the median year is 258.5 mm (10.2 in). 100200300400500600196019701980Record: 529.0 mm (20.8 in) in 1968
The wettest five days of the year at Yonaguni-Jima, 1957 to 1989. The record is 529.0 mm (20.8 in) in 1968, marked on the chart; the median year is 258.5 mm (10.2 in).
Wettest five days (Rx5day) at Yonaguni-Jima by year
YearWettest five days (Rx5day)
1957370.6 mm (14.6 in)
1958258.5 mm (10.2 in)
1959198.4 mm (7.8 in)
1960254.6 mm (10.0 in)
1961292.3 mm (11.5 in)
1962286.1 mm (11.3 in)
1963295.7 mm (11.6 in)
1964158.6 mm (6.2 in)
1965191.5 mm (7.5 in)
1966309.8 mm (12.2 in)
1967283.2 mm (11.1 in)
1968529.0 mm (20.8 in)
1969320.0 mm (12.6 in)
1970431.0 mm (17.0 in)
1971276.5 mm (10.9 in)
1972210.0 mm (8.3 in)
1973212.0 mm (8.3 in)
1974299.5 mm (11.8 in)
1975196.5 mm (7.7 in)
1976296.0 mm (11.7 in)
1977255.0 mm (10.0 in)
1978336.5 mm (13.2 in)
1979337.0 mm (13.3 in)
1980166.0 mm (6.5 in)
1981231.5 mm (9.1 in)
1982228.0 mm (9.0 in)
1983231.5 mm (9.1 in)
1984179.5 mm (7.1 in)
1985284.5 mm (11.2 in)
1986298.5 mm (11.8 in)
1987170.0 mm (6.7 in)
1988249.5 mm (9.8 in)
1989204.5 mm (8.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Yonaguni-Jima by year The longest dry spell of the year at Yonaguni-Jima, 1957 to 1989. The record is 30 days in 1988, marked on the chart; the median year is 17 days. 1015202530196019701980Record: 30 days in 1988
The longest dry spell of the year at Yonaguni-Jima, 1957 to 1989. The record is 30 days in 1988, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Yonaguni-Jima by year
YearLongest dry spell (CDD)
195717 days
195817 days
195913 days
196013 days
196115 days
196217 days
196316 days
196414 days
196520 days
196615 days
196713 days
196815 days
196924 days
197011 days
197121 days
197222 days
197317 days
197422 days
197513 days
197616 days
197715 days
197815 days
197925 days
198019 days
198121 days
198222 days
198321 days
198415 days
198514 days
198617 days
198718 days
198830 days
198926 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

33 years, 1957 to 1989

A day with at least 169.4 mm (6.7 in) of rain is expected about once in 2 years. A day with at least 326.8 mm (12.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Yonaguni-Jima: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years169.4 mm (6.7 in)
5 years219.6 mm (8.6 in)
10 years249.3 mm (9.8 in)
25 years283.2 mm (11.1 in)
50 years306.0 mm (12.0 in)Longer than the 33 years of record
100 years326.8 mm (12.9 in)Longer than the 33 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 33 years of values from 1957 to 1989.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 286.5 mm (11.3 in) in 1976; 263.5 mm (10.4 in) in 1978; 262.5 mm (10.3 in) in 1966.

Download the Data

  • Data for Yonaguni-Jima standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Yonaguni-Jima threshold days by year: CSV or JSON. Field meanings are on the data page.

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 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).