I just know April, and it was just fine! Good temperature. If you look at the temperatures for f eks Cordoba during the year, you will see that it is very hot in summer and cold in winter. For myself I would think that March could be fine, but could also suddenly be a bit too cold. You never know. My husband and I have walked 2 weeks on different caminos every April since 2003, and have had ALL sort of weather, but at least this April from Granada to Cordoba was perpect (cold nights, nice days).
As you can see, we slept in Hostales. There are almost no albergues. I think the parroqial places was not ment for modern pilgrims originally. The church helped people who needed a place to sleep by having those places. We have found that they are often closed now, may be because they were ment for other people than us. Relativly wealthy modern pilgrims - out for a modern walk - have may be done something to this institutions which is not all good? I am not sure of this. It is just a growing feeling from several years of walking. Bjørg