Hydrographic and Oceanographic Department
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Chiba
Realtime tidal data at Chiba
About gauge and tidal data
Latitude: 35°34′N Longitude: 140°03′E Datum level: 120cm 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【 2024/04/25 】
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 |
| 0425 | 76 | 93 | 122 | 153 | 177 | 185 | 175 | 149 | 112 | 73 | 38 | 16 | 12 | 30 | 63 | 105 | 144 | 172 | 185 | 181 | 163 | 138 | 111 | 90 |
Observation data
Record of TidalHeight(cm) Location Chiba Longitude 140-03 Latitude 35-34 TimeZone -09 00(JST) TidalHeightDatum 120cm below mean sea level. a note: Broken or No transmit data ---> "9999" year date time cm 2024 04 25 00 00 902024 04 25 00 05 902024 04 25 00 10 932024 04 25 00 15 942024 04 25 00 20 972024 04 25 00 25 982024 04 25 00 30 1032024 04 25 00 35 1032024 04 25 00 40 1052024 04 25 00 45 1072024 04 25 00 50 1082024 04 25 00 55 1082024 04 25 01 00 1122024 04 25 01 05 1132024 04 25 01 10 1172024 04 25 01 15 1182024 04 25 01 20 1192024 04 25 01 25 1232024 04 25 01 30 1272024 04 25 01 35 1292024 04 25 01 40 1322024 04 25 01 45 1352024 04 25 01 50 1372024 04 25 01 55 1392024 04 25 02 00 1432024 04 25 02 05 1462024 04 25 02 10 1482024 04 25 02 15 1502024 04 25 02 20 1532024 04 25 02 25 1572024 04 25 02 30 1592024 04 25 02 35 1622024 04 25 02 40 1632024 04 25 02 45 1672024 04 25 02 50 1682024 04 25 02 55 1692024 04 25 03 00 1732024 04 25 03 05 1742024 04 25 03 10 1762024 04 25 03 15 1782024 04 25 03 20 1782024 04 25 03 25 1832024 04 25 03 30 1852024 04 25 03 35 1882024 04 25 03 40 1882024 04 25 03 45 1922024 04 25 03 50 1932024 04 25 03 55 1942024 04 25 04 00 1952024 04 25 04 05 1962024 04 25 04 10 1972024 04 25 04 15 1982024 04 25 04 20 1982024 04 25 04 25 1982024 04 25 04 30 2002024 04 25 04 35 2012024 04 25 04 40 2022024 04 25 04 45 2022024 04 25 04 50 2022024 04 25 04 55 2002024 04 25 05 00 2002024 04 25 05 05 2002024 04 25 05 10 1992024 04 25 05 15 1992024 04 25 05 20 1992024 04 25 05 25 1972024 04 25 05 30 1982024 04 25 05 35 1982024 04 25 05 40 1972024 04 25 05 45 1962024 04 25 05 50 1962024 04 25 05 55 1932024 04 25 06 00 1932024 04 25 06 05 1922024 04 25 06 10 1892024 04 25 06 15 1882024 04 25 06 20 1872024 04 25 06 25 1842024 04 25 06 30 1832024 04 25 06 35 1782024 04 25 06 40 1792024 04 25 06 45 1772024 04 25 06 50 1742024 04 25 06 55 1722024 04 25 07 00 1682024 04 25 07 05 1682024 04 25 07 10 1642024 04 25 07 15 1622024 04 25 07 20 1592024 04 25 07 25 1562024 04 25 07 30 1532024 04 25 07 35 1502024 04 25 07 40 1472024 04 25 07 45 1442024 04 25 07 50 1412024 04 25 07 55 1372024 04 25 08 00 1362024 04 25 08 05 1332024 04 25 08 10 1292024 04 25 08 15 1272024 04 25 08 20 1222024 04 25 08 25 1182024 04 25 08 30 1142024 04 25 08 35 1112024 04 25 08 40 1072024 04 25 08 45 1032024 04 25 08 50 992024 04 25 08 55 982024 04 25 09 00 942024 04 25 09 05 912024 04 25 09 10 882024 04 25 09 15 852024 04 25 09 20 822024 04 25 09 25 782024 04 25 09 30 742024 04 25 09 35 712024 04 25 09 40 692024 04 25 09 45 652024 04 25 09 50 622024 04 25 09 55 582024 04 25 10 00 572024 04 25 10 05 542024 04 25 10 10 522024 04 25 10 15 492024 04 25 10 20 472024 04 25 10 25 442024 04 25 10 30 432024 04 25 10 35 402024 04 25 10 40 382024 04 25 10 45 362024 04 25 10 50 342024 04 25 10 55 332024 04 25 11 00 332024 04 25 11 05 322024 04 25 11 10 322024 04 25 11 15 312024 04 25 11 20 99992024 04 25 11 25 99992024 04 25 11 30 99992024 04 25 11 35 99992024 04 25 11 40 99992024 04 25 11 45 99992024 04 25 11 50 99992024 04 25 11 55 99992024 04 25 12 00 99992024 04 25 12 05 99992024 04 25 12 10 99992024 04 25 12 15 99992024 04 25 12 20 99992024 04 25 12 25 99992024 04 25 12 30 99992024 04 25 12 35 99992024 04 25 12 40 99992024 04 25 12 45 99992024 04 25 12 50 99992024 04 25 12 55 99992024 04 25 13 00 99992024 04 25 13 05 99992024 04 25 13 10 99992024 04 25 13 15 99992024 04 25 13 20 99992024 04 25 13 25 99992024 04 25 13 30 99992024 04 25 13 35 99992024 04 25 13 40 99992024 04 25 13 45 99992024 04 25 13 50 99992024 04 25 13 55 99992024 04 25 14 00 99992024 04 25 14 05 99992024 04 25 14 10 99992024 04 25 14 15 99992024 04 25 14 20 99992024 04 25 14 25 99992024 04 25 14 30 99992024 04 25 14 35 99992024 04 25 14 40 99992024 04 25 14 45 99992024 04 25 14 50 99992024 04 25 14 55 99992024 04 25 15 00 99992024 04 25 15 05 99992024 04 25 15 10 99992024 04 25 15 15 99992024 04 25 15 20 99992024 04 25 15 25 99992024 04 25 15 30 99992024 04 25 15 35 99992024 04 25 15 40 99992024 04 25 15 45 99992024 04 25 15 50 99992024 04 25 15 55 99992024 04 25 16 00 99992024 04 25 16 05 99992024 04 25 16 10 99992024 04 25 16 15 99992024 04 25 16 20 99992024 04 25 16 25 99992024 04 25 16 30 99992024 04 25 16 35 99992024 04 25 16 40 99992024 04 25 16 45 99992024 04 25 16 50 99992024 04 25 16 55 99992024 04 25 17 00 99992024 04 25 17 05 99992024 04 25 17 10 99992024 04 25 17 15 99992024 04 25 17 20 99992024 04 25 17 25 99992024 04 25 17 30 99992024 04 25 17 35 99992024 04 25 17 40 99992024 04 25 17 45 99992024 04 25 17 50 99992024 04 25 17 55 99992024 04 25 18 00 99992024 04 25 18 05 99992024 04 25 18 10 99992024 04 25 18 15 99992024 04 25 18 20 99992024 04 25 18 25 99992024 04 25 18 30 99992024 04 25 18 35 99992024 04 25 18 40 99992024 04 25 18 45 99992024 04 25 18 50 99992024 04 25 18 55 99992024 04 25 19 00 99992024 04 25 19 05 99992024 04 25 19 10 99992024 04 25 19 15 99992024 04 25 19 20 99992024 04 25 19 25 99992024 04 25 19 30 99992024 04 25 19 35 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25 23 35 99992024 04 25 23 40 99992024 04 25 23 45 99992024 04 25 23 50 99992024 04 25 23 55 9999