Tulum Beach in December

November through April brings perfect weather — sunny, dry, and breezy. December and January see the biggest crowds and highest prices. March offers a sweet spot with great weather and slightly fewer people. Avoid May through October unless you enjoy daily thunderstorms and sweltering humidity. Hurricane season runs June through November, with September and October being the riskiest months. But shoulder seasons like November and April can offer deals on accommodations if you book early.