Mexico City and Tulum are close in December. Mexico City averages 8–22°C with medium crowds; Tulum 18–29°C with high crowds.
By Daan · Last reviewed October 2026
Mexico City and Tulum
The verdict for December
Cool, calm, then festive
+Cool, sunny, dry days, with some of the best rates of the year before the 20th.
–The last ten days get busy and pricey with holiday travel.
Early December gives you dry-season weather at shoulder-season prices.
Festive, sunny, and full of events
+Major event season
–Holiday prices
December brings warm, increasingly dry weather and a major increase in nightlife activity. Tulum becomes especially busy toward the end of the month as the holiday and party season begins.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month