The units on your forecast show according to the units (meters or feet) that you have set.
To change the units:
1) Go to your buoyweather.com homepage and select to view the 7-day or 16-day forecast
2) Select Units on the right side of the page
3) A pop-up menu will appear where you can select your unit preference. Select your units and press the "Set Units" button
1) Go to your Account Page
2) Select the units you prefer