Do you really love to sunbathe or you avoid sun rays?
Though I fall into latter category and that's the core reason I picked monsoon time to visit Goa, after experiencing the state in monsoon, I would say even if one falls in former category, a visit during monsoon is must. As the state is in a whole new outfit with the fields greener and the waves wilder comparatively.
Otherwise also Goa is not a one time visit destination for anyone. Planning a visit in season time (Nov to Feb) and monsoon time (Jun to Aug) both is a better way to go.
After reaching Calangute from Airport, I made last minute booking in Morjim area for upcoming night, as I wanted to spend my day at a calm place where I could plan some self-pampering sessions (Fish Spa and massage) as well. And I found this beautiful resort in Morjim with 8-10 cottages around a huge swimming pool.