Latest ocean temperature data
2025年 10月8日 2025年 9月8日

Tokyo Bay
Pacific Coast between Boso and Tomakomai
Pacific Coast from Kushiro to Boso
South and East Coast of Hokkaido

How to read the graph

Gratitude
  • This site's graphs are created using the external program Chart.js.
  • The ship's route confirmation and map images on this site utilize the services of GPS Visualizer.