James Gaskets Rocker Cover Gasket Kit for Harley-Davidso n JGI-17033-99 (Fits: Rocker)
February, somewhat surprisingly, is the third driest month of the year in Cancun with just 2.2 inches of rain falling over an average of 4 rainy days. Those 4 rainy days are unlikely to occur consecutively so there's next to no chance of your whole vacation being wiped out by rain.
It is much cooler also. The best time of year to travel to Cancun (weather-wise) is during the dry season's coolest months: January and February. March and April are the driest months of the year, and also the sunniest months in Cancun. Humidity is high in Cancun, often around 80%. April and May have the lowest humidity.