Welcome to the Wave Forecast service provided by SurferToday.com and NOAA.
Check the Wave Height Forecast for Portugal and Spain, in the next three days:
What is Wave Height Forecast? Learn the NOAA interpretation:
The significant wave height is a measure for the wave height, and closely corresponds to what a trained observer would consider to be the mean wave height. Note that the highest wave height of an individual wave will be significantly larger.