To be brutally honest,@greysensmommy this is the worst time to go to Mexico (depending on where you go). I used to live near there and I almost died. They are hitting their 100+ degree weather out there and to be safe, you need all the sun protection you can get.

Lots of sunblock. I packed a lot of shorts and tank tops because it is hot down there and a few swim suits. Also if you are staying st a resort I'd pack a few nice dresses to wear for dinners.

A big one is to bring your own water! I have been there before and someone that went with me drank water there and ended up with severe diarrhea and dehydration @greysensmommy