In reply to justdoit:
Most of the cliffs face south so you should have plenty of dry rock. It was still very hot when I was there last week and we were told by locals that good conditions could be had right through the winter. We were assured that it was not common to get prolonged wet weather and that rain usually came in heavy storms which passed through quickly.
Days will be short though so don't forget your head torch for coming down in the dark!
