you can fire up the AA meeting finder for meetings at your destination. you're going to SoCal right? there should only be a gazillion or so to choose from.
limit your time with other drinkers. make SURE your bring your own beverages. when possible eat first. have OTHER things planned and DO them.
you don't HAVE to drink. if you have made your mind up you will NOT drink under any circumstance whatsoever and you restate that commitment to yourself daily, you should be fine. tell your wife you do not plan to drink AT ALL. not to make HER responsible, but to help you be accountable.
as i recall you are not staying WITH the family, but have your own abode. keep that a safe place.
check in with SR each morning. and each night. go to bed sober. you aren't there a month right? just a few days?