How this app works
This app shows tide extremes (highs and lows) for your location using data
from the
Stormglass.io API.
- Tide times and heights are relative to
Mean Sea Level
(MSL).
- Most public tide apps show height relative to
Chart Datum
(CD), which is often lower.
- You can estimate CD height by adding an offset (e.g. +4.17 m in Brest,
France).
Storage
Your API key, location, and tide data are saved in your browser’s local
storage. Use "Reset" to change them.
Updating
Tide data updates daily. Use the "Update Tides" button after a day has
passed.