Great time to move. Likewise, I moved here from Tucson in April. Got the best before the worst.
My best advice for the summers is hydrate and have a plan if out hiking when it’s hot…start early. Every year, there are people that die from heat related deaths while doing leisure activities. Good places to hike are Sabino Canyon, Mt Lemmon, Picacho Peak north of Tucson off I-10.
Stay out of Tucson Unified school district if he has kids. Its a dumpster fire.
Marana, Vail, and Sahuarita are good places to live just outside of Tucson. If he has $$$, the Catalina foothills are nice.
Any wrestlers in the family? Tucson Cyclones is a good club in the Flowing Wells area.
Don’t be scared to go into the dump looking Mexican food places. Guero Canelos and BKs have great tacos and Sonoran hot dogs. Lots of good food and pizza in the the U of A and downtown area. Excellent “bird” watching down there as well if your bro is into that kind of thing haha.