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Hachijyoujima
Realtime tidal data at Hachijyoujima
About gauge and tidal data
Latitude: 33°08′N Longitude: 139°48′E Datum level: 81cm below mean sea level Obs. : tide observation by every 5 minutes Pred.: tide prediction by every 5 minutes Obs.-Pred. : difference between observation and prediction
Tidal curve【 2021/09/23 】
Hourly prediction
Unit：cm
Tidal harmonic constants
| month day | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 0923 | 42 | 49 | 66 | 90 | 113 | 131 | 138 | 134 | 119 | 98 | 74 | 55 | 47 | 51 | 65 | 87 | 110 | 128 | 136 | 134 | 120 | 97 | 72 | 50 |
Observation data
Record of TidalHeight(cm) Location Hachijyoujima Longitude 139-48 Latitude 33-08 TimeZone -09 00(JST) TidalHeightDatum 81cm below mean sea level. a note: Broken or No transmit data ---> "9999" year date time cm 2021 09 23 00 00 1002021 09 23 00 05 1012021 09 23 00 10 1032021 09 23 00 15 1012021 09 23 00 20 1012021 09 23 00 25 1042021 09 23 00 30 1022021 09 23 00 35 1042021 09 23 00 40 1052021 09 23 00 45 1042021 09 23 00 50 1042021 09 23 00 55 1072021 09 23 01 00 1072021 09 23 01 05 1062021 09 23 01 10 1092021 09 23 01 15 1122021 09 23 01 20 1102021 09 23 01 25 1122021 09 23 01 30 1172021 09 23 01 35 1152021 09 23 01 40 1152021 09 23 01 45 1212021 09 23 01 50 1202021 09 23 01 55 1212021 09 23 02 00 1242021 09 23 02 05 1262021 09 23 02 10 1252021 09 23 02 15 1312021 09 23 02 20 1322021 09 23 02 25 1322021 09 23 02 30 1362021 09 23 02 35 1402021 09 23 02 40 1402021 09 23 02 45 1422021 09 23 02 50 1462021 09 23 02 55 1482021 09 23 03 00 1492021 09 23 03 05 1512021 09 23 03 10 1542021 09 23 03 15 1562021 09 23 03 20 1582021 09 23 03 25 1582021 09 23 03 30 1632021 09 23 03 35 1642021 09 23 03 40 1652021 09 23 03 45 1672021 09 23 03 50 1682021 09 23 03 55 1732021 09 23 04 00 1722021 09 23 04 05 1732021 09 23 04 10 1752021 09 23 04 15 1772021 09 23 04 20 1802021 09 23 04 25 1792021 09 23 04 30 1822021 09 23 04 35 1832021 09 23 04 40 1842021 09 23 04 45 1862021 09 23 04 50 1862021 09 23 04 55 1902021 09 23 05 00 1912021 09 23 05 05 1902021 09 23 05 10 1942021 09 23 05 15 1942021 09 23 05 20 1942021 09 23 05 25 1952021 09 23 05 30 1972021 09 23 05 35 1972021 09 23 05 40 1972021 09 23 05 45 1982021 09 23 05 50 1982021 09 23 05 55 1992021 09 23 06 00 2002021 09 23 06 05 1982021 09 23 06 10 1982021 09 23 06 15 2012021 09 23 06 20 2002021 09 23 06 25 1992021 09 23 06 30 2002021 09 23 06 35 2012021 09 23 06 40 1992021 09 23 06 45 1992021 09 23 06 50 2012021 09 23 06 55 2002021 09 23 07 00 1982021 09 23 07 05 1992021 09 23 07 10 1982021 09 23 07 15 1952021 09 23 07 20 1952021 09 23 07 25 1972021 09 23 07 30 1902021 09 23 07 35 1932021 09 23 07 40 1932021 09 23 07 45 1902021 09 23 07 50 1902021 09 23 07 55 1892021 09 23 08 00 1862021 09 23 08 05 1852021 09 23 08 10 1832021 09 23 08 15 1832021 09 23 08 20 1792021 09 23 08 25 1792021 09 23 08 30 1762021 09 23 08 35 1732021 09 23 08 40 1732021 09 23 08 45 1722021 09 23 08 50 1682021 09 23 08 55 1682021 09 23 09 00 1692021 09 23 09 05 1622021 09 23 09 10 1612021 09 23 09 15 1632021 09 23 09 20 1582021 09 23 09 25 1562021 09 23 09 30 1562021 09 23 09 35 1532021 09 23 09 40 1522021 09 23 09 45 1492021 09 23 09 50 1462021 09 23 09 55 1472021 09 23 10 00 1422021 09 23 10 05 1412021 09 23 10 10 1412021 09 23 10 15 1372021 09 23 10 20 1352021 09 23 10 25 1332021 09 23 10 30 1332021 09 23 10 35 1302021 09 23 10 40 1282021 09 23 10 45 1282021 09 23 10 50 1282021 09 23 10 55 1242021 09 23 11 00 1242021 09 23 11 05 1242021 09 23 11 10 1212021 09 23 11 15 1202021 09 23 11 20 1202021 09 23 11 25 1192021 09 23 11 30 99992021 09 23 11 35 99992021 09 23 11 40 99992021 09 23 11 45 99992021 09 23 11 50 99992021 09 23 11 55 99992021 09 23 12 00 99992021 09 23 12 05 99992021 09 23 12 10 99992021 09 23 12 15 99992021 09 23 12 20 99992021 09 23 12 25 99992021 09 23 12 30 99992021 09 23 12 35 99992021 09 23 12 40 99992021 09 23 12 45 99992021 09 23 12 50 99992021 09 23 12 55 99992021 09 23 13 00 99992021 09 23 13 05 99992021 09 23 13 10 99992021 09 23 13 15 99992021 09 23 13 20 99992021 09 23 13 25 99992021 09 23 13 30 99992021 09 23 13 35 99992021 09 23 13 40 99992021 09 23 13 45 99992021 09 23 13 50 99992021 09 23 13 55 99992021 09 23 14 00 99992021 09 23 14 05 99992021 09 23 14 10 99992021 09 23 14 15 99992021 09 23 14 20 99992021 09 23 14 25 99992021 09 23 14 30 99992021 09 23 14 35 99992021 09 23 14 40 99992021 09 23 14 45 99992021 09 23 14 50 99992021 09 23 14 55 99992021 09 23 15 00 99992021 09 23 15 05 99992021 09 23 15 10 99992021 09 23 15 15 99992021 09 23 15 20 99992021 09 23 15 25 99992021 09 23 15 30 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23 19 30 99992021 09 23 19 35 99992021 09 23 19 40 99992021 09 23 19 45 99992021 09 23 19 50 99992021 09 23 19 55 99992021 09 23 20 00 99992021 09 23 20 05 99992021 09 23 20 10 99992021 09 23 20 15 99992021 09 23 20 20 99992021 09 23 20 25 99992021 09 23 20 30 99992021 09 23 20 35 99992021 09 23 20 40 99992021 09 23 20 45 99992021 09 23 20 50 99992021 09 23 20 55 99992021 09 23 21 00 99992021 09 23 21 05 99992021 09 23 21 10 99992021 09 23 21 15 99992021 09 23 21 20 99992021 09 23 21 25 99992021 09 23 21 30 99992021 09 23 21 35 99992021 09 23 21 40 99992021 09 23 21 45 99992021 09 23 21 50 99992021 09 23 21 55 99992021 09 23 22 00 99992021 09 23 22 05 99992021 09 23 22 10 99992021 09 23 22 15 99992021 09 23 22 20 99992021 09 23 22 25 99992021 09 23 22 30 99992021 09 23 22 35 99992021 09 23 22 40 99992021 09 23 22 45 99992021 09 23 22 50 99992021 09 23 22 55 99992021 09 23 23 00 99992021 09 23 23 05 99992021 09 23 23 10 99992021 09 23 23 15 99992021 09 23 23 20 99992021 09 23 23 25 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