Weather in Mexico City Although technically located in the tropics, Mexico City sits at an altitude of 2240 metres, keeping temperatures pleasant year-round. Evenings tend to be cooler, especially in the winter when temps can get close to freezing.The rainy season in Mexico City spans from May to September, with July being the wettest month. You can expect afternoon showers, and while the rain is typically brief, it can be intense, with periods of thunder and even hail. Even with a downpour in the forecast, the sun still shines most days.MonthAverage highAverage lowMarch to May 27°C9°C June to August 25°C12°CSeptember to November22°C8°CDecember to February 22°C6°C Weather in Cancun The Riviera Maya, which includes some of Mexico's most popular beach destinations like Cancun, Playa del Carmen and Tulum, has a tropical climate with pretty minimal changes in weather from season to season. Cancun has an average yearly temperature of 26°C that can hit 35°C in the height of summer.The wet season in Cancun is between May and October, with slightly warmer, more humid weather, and the dry season lasts from November to April. Rain showers aren't unusual in this part of the country, but it's rare to have a total washout on your trip. Often, you can expect an afternoon shower followed by a glorious sunset.MonthAverage highAverage low March to May 32°C20°CJune to August 33°C23°CSeptember to November32°C21°CDecember to February 29°C19°C Our Mexico trips Get inspired on The Good Times