Mexico City weather in December
December in Mexico City: nice, dry — an excellent time to visit.
#8 of 12 months in Mexico City · #40 of 604 destinations to visit in December · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Mexico City climate normals — December
| Daytime high | 20°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 47°F | |
| Feels like (high) | 19°C / 66°F | |
| Rainfall | 19 mm / 0.8 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 7°C / 44°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 11 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 76 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Mexico City in December — FAQ
- Is December a good time to visit Mexico City?
- December in Mexico City: nice, dry — an excellent time to visit. It ranks #8 of 12 months for Mexico City on SeasonMap's comfort score (88/100).
- What is the weather like in Mexico City in December?
- In December, Mexico City averages a daily high of 20.3°C and a low of 8.1°C, with about 19.1 mm of rain over roughly 5.4 rainy days.
- What is the air quality in Mexico City in December?
- Mexico City has a mean US Air Quality Index of about 76 in December.