Swimwear is the attire of choice for much of Cancún and the Mexican Caribbean

Whatever your plans in the Mexican Caribbean, comfortable clothing is essential. Lightweight cottons and linens are advisable during the day, while light woolens are suggested for evenings. Try to avoid synthetics, which may not be as breathable as natural fabrics. The coastal areas and the higher altitudes can be very cool and pleasant in the mornings and evenings. But the interior, away from the sea breeze, can be stiflingly hot, so be prepared with light clothing.

Additionally, waterproof clothing and rainwear are a necessity all year long. Rain showers in the Mexican Caribbean usually come up suddenly, come down hard, and end fairly quickly, so you need to be prepared with a waterproof jacket or umbrella everywhere you go. Opt for something easy to carry that you can quickly slip on and then put away again when the sun reappears.

The Mexican Caribbean, especially Cancún, is an area of relaxed conventions. Cancún is a tourist's vacation destination from the ground up. People come here to enjoy the luxurious accommodations, sun, and sand. You'll see people in swimming attire lounging everywhere. Other more remote areas of Mexico may be a bit more traditional, and you should probably only wear swimwear on the beach or at the pool. Also, if you are traveling for business, a suit, jacket, and tie are expected, and the usual Western formalities and courtesies are observed.