In reply to aajr95:
I've been to Skye many times.
Typically you could expect that in March on a mountain crag it would be about 2dec C and wet, if it isn't actually raining. Of course you could be lucky and get blazing sunshine and 10 Deg C or you could end up climbing in a blizzard.
In fact March is really a bit early for any mountain crag. In Scotland I'd say most climbers, most years, put their winter gear away around the end of March and start thinking about rock climbing on mountain crags around Easter.
If you can't visit Scotland any later than March my advice would be to keep your options open and go where the weather is best.
A really good low level alternative is Poll Dubh in Glen Nevis which has lots of shorter climbs at lower grades in a lovely setting. You could get a couple of full days climbing there.