On the high central plateau, in cities like Mexico City and Guadalajara, the weather is mild throughout the year, though a little cooler from December through to March. The wettest months on the plateau are the summer months, where there will typically be an hour of two of rain per day. Inland, northern Mexico is mostly desert, hot in the day, and cold in the night. In southern Mexico, the mountainous regions blow hot and cold with pleasant climates lower down. Baja California, Mexico's pacific peninsula gets very little rain throughout the year. Winters are comfortable, and summers are very hot, though resorts like Cabo San Lucas benefit from a sea breeze. The country's central pacific coast, home to resorts such as Puerto Vallarta and Acapulco is hot, sunny and humid almost throughout the year, but the coast and comfortable climate, but in the late summer months, heavy rains come with the hurricanes. The beach resorts of the Yucatán Peninsula, including Cancún, enjoy similar summers to Acapulco, but suffer even more from hurricanes.
Required Clothing
This varies from area to area. Natural fibres are best in the heat, but have a sweater on hand as the nights are generally cooler. A sun hat will help to avoid dehydration. In the mountains, heavier clothing will be required. In general Mexicans are casual about dress, but for visits to churches, long sleeves and long skirts or trousers are required, while theatres and upmarket restaurants may have specific dress codes.