Other facts from our historical weather data: Does Chichén-Itzá have a dry season? Yes, the months of February and March are very dry. Which is the hottest month in Chichén-Itzá? May has an average maximum temperature of 36°C (97°F) and is the hottest month of the year. Which is the coolest month in Chichén-Itzá? The coolest month is January with an average maximum temperature of 30°C (86°F). Which is the wettest month in Chichén-Itzá? September tops the wettest month list with 153mm (6 in) of rainfall. Which is the driest month in Chichén-Itzá? March is the driest month with 18mm (0.7 in) of precipitation. Which is the sunniest month in Chichén-Itzá? March is the sunniest month with an average of 273 hours of sunshine. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.