In reply to IOAN D:
Climbed in may couple of years ago and going back this may.
Perfectly reasonable climbing in the shade, which means until 12 on some crags, maybe as late as 4 on others (e.g. Afternoon and others to the left). Most of the crags developed first were west facing, but more crags are being developed all the time. One crag - Summertime - faced north, but wasn't particulary good.
About the same temps as when I've been there in Sept and Oct, but we did have a couple of heavy showers.