In reply to sam:
Not quite Feb, but the very end of Jan and the beginning of March. As others have said, it was sometimes a cloudy/misty, but on other days warmenough to wear shorts. I don't remember any of the crags being wet or seeping, but we may just have been lucky. It may well be the best time for the south-facing crags in Val Pennevaire (such as Terminal), as at other times of year we've been too hot there.
However, if your time away is limited and you want a higher chance of sunshine, the Costa Blanca may be less of a risk (though I don't think the climbing is as good!)