What to expect in Mexico City in December
December is a strong choice for Mexico City: 20° / 6°, with manageable crowds at the big attractions and prices close to the yearly average.
Mexico City weather in December
Typical conditions in Mexico City during December, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 20°C 68°F |
|---|---|
| Average low | 6°C 43°F |
| Rainfall | Dry 8/100 |
| Total rainfall | 6 mm0.2 in |
| Rainy days | 3 |
| Daylight | 10 h 58 min |
| How it feels | Mild — layers weather |
Average highs sit around 20°C with lows near 6°C. It is one of the drier months — pack light.
Crowds & demand
Crowd levels are Moderate for Mexico City — manageable crowds at the big attractions.
Prices & value
This month counts as shoulder season: prices close to the yearly average.
What to pack
Layers you can shed: 20°C by day and about 6°C after dark is a two-jacket kind of month. Rain gear is largely optional this month, which keeps your bag light.
What it costs
Costs in December sit around the yearly average for Mexico City — neither a bargain nor a squeeze. Booking a few weeks out is usually enough. Compared with the most expensive month of the year, you are looking at roughly 7% less.
Who this month suits
- Travellers who want the most reliable weather
- Anyone travelling on a budget
Events & what’s on
No major festivals fall in December, so the destination feels like its everyday self.
Mexico City in December compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| October | 21° / 10° | Moderate | $$ | 61 |
| November | 21° / 8° | Moderate | $$ | 60 |
| December · This month | 20° / 6° | Moderate | $$ | 63 |
| January | 21° / 6° | Moderate | $ | 72 |
| February | 23° / 7° | Low | $ | 76 |
These months score higher for Mexico City on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in December
If the destination is negotiable but the month is not, these places are at their best in December.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
