Hydrographic and Oceanographic Department
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Awashima
Realtime tidal data at Awashima
About gauge and tidal data
Latitude: 38°28′N Longitude: 139°15′E Datum level: 20cm 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【 2025/01/19 】
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 |
| 0119 | 11 | 12 | 14 | 16 | 18 | 20 | 19 | 17 | 14 | 10 | 6 | 3 | 2 | 2 | 3 | 6 | 10 | 13 | 15 | 16 | 15 | 14 | 12 | 10 |
Observation data
Record of TidalHeight(cm) Location Awashima Longitude 139-15 Latitude 38-28 TimeZone -09 00(JST) TidalHeightDatum 20cm below mean sea level. a note: Broken or No transmit data ---> "9999" year date time cm 2025 01 19 00 00 192025 01 19 00 05 172025 01 19 00 10 192025 01 19 00 15 192025 01 19 00 20 182025 01 19 00 25 182025 01 19 00 30 182025 01 19 00 35 182025 01 19 00 40 172025 01 19 00 45 172025 01 19 00 50 172025 01 19 00 55 182025 01 19 01 00 192025 01 19 01 05 192025 01 19 01 10 182025 01 19 01 15 192025 01 19 01 20 182025 01 19 01 25 182025 01 19 01 30 182025 01 19 01 35 182025 01 19 01 40 202025 01 19 01 45 192025 01 19 01 50 192025 01 19 01 55 212025 01 19 02 00 202025 01 19 02 05 202025 01 19 02 10 192025 01 19 02 15 212025 01 19 02 20 212025 01 19 02 25 202025 01 19 02 30 202025 01 19 02 35 212025 01 19 02 40 222025 01 19 02 45 212025 01 19 02 50 212025 01 19 02 55 212025 01 19 03 00 222025 01 19 03 05 212025 01 19 03 10 222025 01 19 03 15 222025 01 19 03 20 232025 01 19 03 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