About gauge and tidal data

Latitude: 35°39′N
Longitude: 139°46′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【 2026/07/18 】

No observation data.

Hourly prediction

Observation data

Record of TidalHeight(cm)
Location          Tokyo 
Longitude         139-46 
Latitude          35-39 
TimeZone          -09 00(JST)
TidalHeightDatum  120cm below mean sea level.
a note: 
Broken or No transmit data ---> "9999"
year  date  time   cm
No observation data.