Ancient pyramids, Caribbean beaches, mezcal-soaked Oaxaca nights — Mexico rewards you year-round, but the dry season (Nov–Apr) is when the Yucatán truly shines.
Data based on Cancun. Mexico City is cooler (altitude 2,240m). Oaxaca is warm and drier. Pacific coast (Puerto Vallarta, Huatulco) mirrors the Caribbean but with different hurricane risk.
Mexico's Caribbean coast shines November through April — minimal rain, turquoise seas, and brilliant sunshine. February scores 9.2/10: 29°C, barely 30mm of rain, and snorkeling visibility that exceeds 25m in the cenotes. This is also whale shark season (June–September off Holbox/Isla Mujeres) and whale watching season (December–March in Baja). Spring Break (March) brings US students flooding Cancun.
May is still excellent with minimal rain (85mm) and warm seas, but June marks the start of the hurricane season. Humidity increases, afternoon thunderstorms become daily, and the general atmosphere shifts. However, May is arguably the best value window — dry-season conditions at lower prices before the summer surge.
The Atlantic hurricane season officially runs June 1–November 30, with peak activity in September–October. The Yucatán Peninsula is periodically hit — Cancun has been devastated by major hurricanes. Travel insurance is essential, many resort rates drop 40–60%, and the gamble can pay off or ruin your trip. September is the most statistically risky month.