The Servicio Meteorológico Nacional (SMN) has issued it's forecast for expected Frentes Frios (cold fronts) for the rest of the winter season. The total number of expected cold fronts (nortes) for the entire season (September 2015 through May 2016) is 60. This is above the average number in 2012-2014, which is 51. For the main, and coldest, part of the season (November through February), 33 nortes are forecast (28 is average). There have been 15 nortes so far this season. The first one to really affect the Riviera Maya just past a few days ago.
You can get the latest nortes advisories from SMN.
