When planning for a trip to Teotihuacan, it is important to the weather conditions you may encounter. This ancient city, located about 30 miles north east of Mexico city, is generally hotter than Mexico city, with temperature averages being between 59°F and 77°F (15° and 25°C). The evenings get cooler.
The rainy season is May through September, with the peak season in July. There is no snow in that portion of the country; the last recorded snow in Mexico City was in 1967.
In general, travel to Mexico can be done at any time of the year, there being no harsh weather seasons, as well as the presence of mild temperatures throughout the different seasons.
All a visitor needs is to wear light clothes, sun screen, sunglasses and a hat. You also need to carry some drinking water to keep yourself hydrated. An alternative is to buy bottled water from the local vendors.