The following monthly temperatures are averages. Clearly, it will be
warmer during the day, and cooler at night. From my experience, the
weather is very pleasant from November until May. Sometime in June,
and definitely from July until September, it is quite hot and humid.
January through March are the coolest months, with typical daytime
temperatures in the high 70's to low 80's and evening temperatures in
the low 60's. A great time to play golf or tennis. How do locals
cope with the summer months? Simple, the Mexicans have a great
invention called the Siesta. You get up very early, around 6am, and
do whatever you want to do outside that is strenuous, such as playing
tennis or exercising. You have lunch from 12 until 2 and then take a
nice long nap from 2 to 4. After that, you start what amounts to
another day, and go on with your business until 8 or 10 in the
evening. All in all, it is a great way of life.