The warm and humid days of summer call for light, comfortable sportswear and bathing suits. (Sunscreen is a necessity.) For the rainy season, June-October, you might want a waterproof jacket. That's also when the mosquitoes are strongest, so carry repellent. For outings in the jungle, wear long pants and long-sleeved shirts in light fabrics. Late December-late February, a light jacket is nice at night, but don't be surprised to see the locals bundled up in sweaters.
You can wear relatively casual clothing to most business meetings—cool cotton shirts for men and not-too-revealing sundresses for women. City residents appear in shorts and T-shirts or blouses and summer slacks or skirts when going about their business during the day. Dress is informal at most restaurants, though beachwear is prohibited. Both men and women should use beach cover-ups when walking on the streets. Due to the air-conditioning in most gourmet restaurants, take a jacket or light wrap with you when going out for dinner.
We recommend good, comfortable walking shoes for traversing Puerto Vallarta's cobblestone streets.