Mexico City weather in December
In December, Mexico City has an average high of 21 °C69 °F and an average low of 6 °C43 °F, with about 6 mm0.2 in of precipitation. It is the 11th warmest month of the year and the driest.
How December compares with other months
Compared with November, December is 0.7 °C1.3 °F cooler on average and drier by 14 mm0.5 in. Compared with January, December is about the same temperature. Daylight lasts about 11.0 hours around the middle of the month. Average relative humidity is 64% and the average cloud amount 33%.
Is December a good time to visit Mexico City?
Yes — December is one of the most comfortable months to visit Mexico City by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Mexico City in December, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Mexico City | 2169 | 643 | 60.2 |
| Iztapalapa | 2169 | 642 | 120.5 |
| Xico | 2169 | 643 | 120.5 |
| Zumpango | 2068 | 541 | 70.3 |
| Cuernavaca | 2578 | 1152 | 50.2 |
| Toluca | 1864 | 338 | 60.2 |
| Cuautla | 2781 | 1254 | 70.3 |
| Pachuca de Soto | 1864 | 439 | 190.7 |
| Puebla | 2170 | 644 | 90.3 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Cuernavaca and Cuautla; cooler: Toluca and Pachuca de Soto.
Other months in Mexico City
- January20 °C69 °F / 5 °C42 °F
- February23 °C73 °F / 7 °C44 °F
- March25 °C78 °F / 8 °C46 °F
- April28 °C82 °F / 10 °C51 °F
- May28 °C82 °F / 12 °C53 °F
- June25 °C77 °F / 12 °C54 °F
- July23 °C74 °F / 12 °C53 °F
- August23 °C73 °F / 12 °C53 °F
- September22 °C71 °F / 11 °C52 °F
- October22 °C71 °F / 9 °C49 °F
- November21 °C70 °F / 7 °C45 °F
- December21 °C69 °F / 6 °C43 °F
Frequently asked questions
How warm is Mexico City in December?
In December the average high in Mexico City is 21 °C (69 °F) and the average low is 6 °C (43 °F).
Does it rain a lot in Mexico City in December?
On average about 6 mm (0.2 in) of precipitation falls in December; it ranks 12th of the 12 months.
Is December the warmest month in Mexico City?
No. The warmest month in Mexico City is April, with an average high of 28 °C (82 °F). The coldest month is January, with an average low of 5 °C (42 °F).
How long is the day in Mexico City in December?
In the middle of December the day in Mexico City lasts about 11.0 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Mexico City in December?
The average relative humidity in December is about 64%. This is a long-term average for the whole day.
How cloudy is Mexico City in December?
On average about 33% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 2,627 m, while Mexico City lies at about 2,240 m. Temperatures on this page were therefore adjusted by +2.5 °C4.5 °F using the standard lapse rate of 6.5 °C per 1,000 m.