May or Sept. for 12 Night Cruise on RCL

Which is better May 23 or Sept. 20 for the 12 night Mediterranean Venice Cruise?
I like the Itineary on Brilliance of the Seas and trying to figure which time to go.

[dfwguy62]

I did a 12 nighter on the Brilliance in mid October and the weather was still very nice (shorts and t-shirts mostly, a long sleeve shirt on deck at night). The seas were not rough at all. The crowds were not bad really anywhere as the summer season had passed. I would think you would find a similar situation with the September date you mention, with possibly even better weather. I can't compare it to a May sailing, but that date doesn't seem like it would be bad either. Pick the date that comes quicker. :-) Enjoy.

Rick.