No problem. Just stay inside in the air conditioning about 5 months out of the year, and you'll be fine. And replace that car battery every year. The blistering heat just kills them.
You don't have to stay indoors in the summer, but it's best to become an early bird with your outdoor activities. It's much more pleasant to play golf or tennis early in the morning when it's still 80 degrees. The other key thing I've learned is to stay out of streets and paved areas in the afternoon because they really heat up, probably to 120+ on many days. Grassy areas like golf courses and parks don't get that hot and are relatively comfortable in the summer because of the low humidity around here.