Hello, I have done both Granada and Seville. Granada this year and Seville last year. I started both around the same time in mid Feb. Seville terrific great weather. Granada this year first three days nice and then rain for 5 weeks. The problem is not the getting wet bit, it is the floods. A lot of Camino Mozarabe involves crossing streams and rivers, they were totally flooded. Every day I had two or three diversions sometimes way out of the track. No albergues on Camino Mozarabe (except one or two). Stayed in Hostels which are like 2 star hotels 25 euro +. Have a look at my account in this forum on live on the camino around mid to late Feb. Did not meet one Pilgrim on Granada route.
I have since walked France gr 10 and Stevenson way and part of a pilgrim route Regordane gr 700 and stayed in the lovely Monastery of Notre Dame de Neiges. I have a blog with heavy emphasis on photography.
www.dermotdolan.blogspot.ie