Look at the insider information thread and check out CBulla's venice info - i assume this event is at Alhambra. Does this motel have two beds? If so do you want to split the cost?
Weather report just in case:
Friday Night: Mostly clear, with a low near 58. Northeast wind around 9 mph.
Saturday: Mostly sunny, with a high around 78. Northeast wind 5 to 7 mph becoming south.
Saturday Night: Mostly clear, with a low around 63. South southeast wind between 3 and 6 mph.
Winds should have been offshore for quite a while and gentle too, so that might be good for viz. Might be a bit nippy in the morning for the 1st dive, not sure about rain chances, but the front will have already moved through, so less likely. I really should try to get that meteorology job some day