It can be a pretty unforgiving coast if caught out in bad weather
, which in most cases puts you on a lee shore, and even if the wind
is moderate, there can be a really big swell coming in making many approaches into a harbour quite an experience.
planning is a must.
On the other hand, Portugal is a nice place, and well worth spending time there.
Sephina's blog is a good start, but get hold of some pilot books/sailing directions for the coast and study them.