Shoulder season. December is a solid shoulder-season choice for Cancún. In December, Cancún averages 24°C, with about 10 hours of sunshine a day and roughly 3.3 rainy days a week. Here's what those numbers mean for a trip.
That's about 2.0°C cooler than Cancún's yearly average — expect milder conditions than peak summer.
Pack layers — warm days, cooler evenings — plus light rain cover.
December is a solid shoulder-season choice for Cancún. It averages 24°C with 10 hours of sun a day and about 3.3 rainy days a week.
Cancún averages 24°C in December, based on roughly twenty years of climate records.
Expect about 3.3 rainy days a week in December, with 10 hours of sunshine a day on average.