Mexico City Weather in December
In December, Mexico City averages a high of 23°C (73°F) and a low of 6°C (42°F), from 47 years of daily records (1971–2025).
23°C
Average high
73°F
6°C
Average low
42°F
30°C
Record high
86°F · December 25, 1987
-3°C
Record low
26°F · December 11, 1992
What December Is Like in Mexico City
- 7 of the 10 warmest Decembers on record in Mexico City have come since 2010.
- The December heat record, 30°C (86°F) on December 25, 1987, has stood for 38 years.
- December 2024 was the 5th warmest December in 47 years of records, 2.2°C (4.0°F) above the long-run average.
- The coldest December reading, -3°C (26°F) on December 11, 1992, has not been matched in 33 years.
At least 1 mm of rain falls on 3% of December days, and the month averages 6 mm in total.
Warmest: 1987 (25.9°C)Latest: 2024 (24.2°C)10-year averageLong-run average (22.6°C)
Look Up a Day in December
See the weather in Mexico City on any December date, year by year.
Source: NOAA GHCN-Daily, Gran Canal Km. 06+250 (1978–2012); Cincel 42 (1971–1988); Mexico City (1993–2025); Rodano 14 (Cfe) (1975–1996); Tacuba 7 (1971–1976). Averages cover 1971–2025. How we compute this