Climates and Weather in Mexico. Mexicoâs weather varies significantly by season and by region. For detailed climate information and a live weather report for specific places, look up the locations you want to visit using our extensive Mexico Travel Guide. See Also: When To Go Mexico (Seasons & Climate).
Confidence votes 28. Annual means once a year, and Semi means partial, so that means that Semiannual means twice a year, once at the beginning and once at the half-year mark.
For the page protection lock, see WP:SEMI. Semi- is a Latin prefix to a verb, noun, or adjective meaning half. Some compounds formed with it are often abbreviated to simply semi in appropriate contexts: semi-, numerical prefix meaning half.