March belongs to Pico de Loro, and its figures are the best on this coast by a distance: sixteen clean days out of thirty, thirteen blown out, one too small. That is a genuinely strong number by any country's standard, better than anything Portugal returns, and it belongs to a reef almost nobody has surfed.
Look at what the three numbers say together. One day too small in a month means the swell is never the problem here. Thirteen blown out means the wind is, always, and March is simply when it interferes least. The reef takes south-west swell with an easterly offshore and it is very consistent, so the question is never whether there is a wave, only whether the sky is standing in front of it.
It is also five out of ten for difficulty, the same figure Zicatela carries, on a coast reached by light aircraft. The month is excellent and the wave is not forgiving, and both of those are true at once.

