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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Perspective Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
If you’re planning a trip to Mexico City this December, expect mild, spring-like days with cool evenings and a low chance of rain, making it one of the best months to visit the capital. The live forecast above gives the day’s specifics, but the broader pattern is reliably pleasant.
What is the typical weather in Mexico City during December?
December marks the heart of the dry season in Mexico City, CDMX. Daytime highs usually settle in the low 20s Celsius (low 70s Fahrenheit), while overnight lows can dip to around 7°C (mid-40s °F). Sunshine dominates the afternoons, but mornings and evenings often carry a crisp chill, especially at higher elevations in the Valley of Mexico. This is a far cry from the humid coast; think of it as a perpetual autumn day.
How should I pack for Mexico City in December?
Layering is the strategy. A light jacket or sweater for the morning will likely come off by midday, only to be needed again after sunset. Long pants and closed-toe shoes are comfortable for exploring neighbourhoods like Condesa or Coyoacán. Rain is rare—December averages only about 10 millimetres of precipitation—so an umbrella is optional but not essential.
Frequently Asked Questions
Is Mexico City cold in December?
Not cold by Canadian standards, but the evenings and early mornings are chilly. Daytime highs are comfortable for sightseeing, while nights require a warm jacket. The altitude (2,240 metres) creates a sharp temperature swing from day to night.
How does Mexico City weather in December compare to Oaxaca weather in December?
Both cities share a dry, mild December climate. Oaxaca City is slightly warmer by a few degrees, with similar sunny days. However, Mexico City’s higher elevation makes its evenings cooler, so pack an extra layer for the capital.
What is the Mexico City weather in December in Fahrenheit?
Daytime highs typically reach the low 70s °F, while overnight lows fall to the mid-40s °F. This comfortable range makes it a popular escape from harsher winter climates elsewhere in North America.
Sources
For more seasonal travel advice, check our Canada weather hub or compare with conditions in Arizona Weather for another dry-winter destination.