No. | Tide station | Latitude | Longitude | Type of tide gauge | Tidal datum plane | Height of the fixed point | Year of establishment |

1 | Aburatsubo | 35-10N | 139-37E | G.S.A.T | 5.000m | 2.4163m | Jul. 1894 |

2 | Hosojima | 32-26N | 131-40E | G.S.A.T | 5.000m | 2.7281m | Jan. 1894 |

3 | Wajima | 37-24N | 136-54E | G.S.A.T | 3.000m | 2.1111m | Jan. 1894 |

4 | Oshoro | 43-13N | 140-52E | G.S.A.T | 3.000m | 1.6906m | Nov. 1905 |

5 | Kainan | 34-09N | 135-12E | G.S.A.T | 5.000m | 2.8193m | Feb. 1953 |

6 | Asamushi | 40-54N | 140-52E | G.S.A.T | 4.000m | 3.0646m | May. 1954 |

7 | Nezugaseki | 38-34N | 139-33E | G.S.A.T | 3.000m | 2.1056m | Mar. 1955 |

8 | Kashiwazaki | 37-21N | 138-31E | G.S.A.T | 4.000m | 2.7204m | Jun. 1955 |

9 | Onisaki | 34-54N | 136-49E | G.S.A.T | 7.000m | 4.5810m | Jan. 1963 |

10 | Tajiri | 35-36N | 134-19E | G.S.A.T | 4.000m | 1.9997m | Jan. 1966 |

11 | Katsuura | 35-08N | 140-15E | G.S.A.T | 5.000m | 2.0053m | Jun. 1967 |

12 | Mikuni | 36-15N | 136-09E | G.S.A.T | 3.000m | 1.1991m | Dec. 1967 |

13 | Kure | 33-20N | 133-15E | G.S.A.T | 5.000m | 2.8246m | Jun. 1972 |

14 | Oga | 39-57N | 139-42E | G.S.A.T | 3.000m | 2.4952m | Jan. 1970 |

15 | Akune | 32-01N | 130-11E | G.S.A.T | 6.000m | 2.7890m | Jul. 1970 |

16 | Susa | 34-38N | 131-36E | G.S.A.T | 4.000m | 2.5552m | Jan. 1992 |

17 | Kariya | 33-28N | 129-51E | G.S.A.T | 5.000m | 2.5220m | Feb. 1972 |

18 | Soma | 37-50N | 140-58E | G.S.A.T | 7.000m | 3.2616m | May. 1973 |

19 | Ito | 34-53N | 139-08E | G.S.A.T | 5.000m | 2.8396m | Jul. 1973 |

20 | Ogi | 37-49N | 138-17E | G.S.A.T | 3.000m | 1.5140m | Aug. 1973 |

21 | Okinawa | 26-11N | 127-49E | G.S.A.T | 5.000m | 2.8262m | Aug. 1975 |

22 | Tago | 34-48N | 138-46E | G.S.A.T | 5.000m | 2.4982m | Aug. 1977 |

23 | Yaizu | 34-52N | 138-20E | G.S.A.T | 5.000m | 1.8848m | Aug. 1977 |

24 | Okushiri | 42-05N | 139-29E | G.S.A.T | 3.000m | 2.0009m | Dec. 1994 |

25 | Tobishima | 39-11N | 139-33E | G.S.A.T | 4.000m | 1.9021m | Mar. 1995 |

*"G.S.A.T" in the column of the type of tide gauge is an abbreviation of Geospatial Information Authority of Japan Automatic Tide Gauge. In Japan, the gauge is called "High resolution automatic tidal system."

- The height of the fixed points are that of FY 2000, which were revised on April 1, 2002.
- The data for Aburatsubo Tide station is that from the new station collected since January 1, 1997.
- The data for Soma Tide station is that from the new station collected since September 1, 2015.
- Method for calculating tidal height: Tidal height = height of the fixed point - constant of the tidal datum plane + tidal level

Click here for 30-seconds data tidal records.

Click here for tide stations of the former Japanese Imperial Land Survey, which were transferred to the Marine Meteorological Observatory of the Ministry of Education in 1924.