Support
MICHIHIKI is a surf conditions app for surfers. Bug reports and requests are always welcome.
Contact
Send bug reports, requests and spot suggestions using the form below. If you include your email address, we usually reply within 3 business days.
FAQ
Q. Is the wave height shown a measured value?
No. It is wave-model output (ECMWF WAM and MFWAM via Open-Meteo), not an official forecast. Actual sea conditions may differ. Always check on site before deciding to paddle out.
Q. How are the score and stars decided?
Calculated from wave height, period, wind direction, swell direction and more. Set your surf level on My Page and the rating adapts to that level (the same conditions rate differently for beginners and advanced surfers).
Q. Where does the tide data come from?
Predicted values from the tide tables published by the Japan Meteorological Agency. Each spot references its nearest station (the station name is shown in the tide section of the spot page).
Q. I'd like a spot added
Please use the contact form on this page. Note that, to avoid crowding and protect the environment, we do not list so-called secret spots.
Q. The screen is too bright / too dark
Switch between Dark, Light and System (follows the device setting) under "Appearance" on My Page. Light is easier to read outdoors in direct sunlight.
Q. My settings disappeared
Settings are stored only on your device, so clearing browser data or reinstalling the app removes them. Please set them again from My Page.
Q. What is shown during a tsunami warning?
When a Japan Meteorological Agency alert is detected, a warning banner appears at the top and wave scores are hidden. If the data can't be fetched we never show "safe"; we say plainly that the fetch failed. Always check the official announcements.
For your safety
Values shown are weather/wave-model output and estimates derived from it, not an official forecast. Actual conditions may differ. In rough weather or during a tsunami warning, stay out of the water and always check official sources such as the Japan Meteorological Agency and the conditions on site yourself.