Warm weather Christmas melodies

What Christmas music fits the mood on a sunny, unseasonably warm December day?  Ottmar Liebert's "Poets & Angels" CD.  On each Christmas carol, Liebert uses the melody as a template on which to build easy-on-the-ears flamenco guitar embellishments.  It wouldn't surprise me if many listeners took in these Christmas covers with the window open or the top of their cars down.