Weather in Monterrey in December 2025
Average weather
Average temperature in Monterrey in December
The expected average maximum temperature in December is +21°C with a maximum of +31°C and a minimum of +5°C.
The average maximum temperature goes up 4% by the end of the month, compared with the beginning of the month, from +22°C to +23°C.
Is Monterrey warm or cold in December?
Monterrey is typically mild in December.
Maximum temperatures go down compared to the previous month from +24°C to +21°C. The minimum temperature also goes down from +13°C to +10°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the coolest months in Monterrey, here is the comparison with other months:
Climate in Monterrey in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +24°C | +21°C | +21°C | ||||
| Min. temperature | ||||||
| -1°C | -5°C | -4°C | ||||
| Max. temperature | ||||||
| +35°C | +36°C | +34°C | ||||
| Rainfall | ||||||
| 36 mm | 31 mm | 36 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 71% | 70% | 68% | ||||
| Air pressure | ||||||
| 1016 HPa | 1017 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 11 | 10 | 9 | ||||
| Cloudy days | ||||||
| 9 | 11 | 11 | ||||
| Rainy days | ||||||
| 10 | 10 | 10 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as good as in November. It’s getting colder in December. From +24°C in the day, the average maximum temperature lowers to +21°C. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 36 mm to 31 mm. It feels drier, as humidity decreases from 71% to 70%. The average wind speed doesn’t change much during December, staying around 1 m/s. The days becoming less sunny, going from 11 sunny days in November to 10 in December.
January brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Monterrey is gradually increasing during December, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last December in Monterrey?
Climate Change over Years
The climate in Monterrey in December has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+26°C) and the highest in 2011 (+30°C). The driest year was 2011 with only 164 mm of rainfall, and the wettest year was 2023 with 3006 mm.
FAQ
Is December a good time to visit Monterrey?
Can you sunbathe in Monterrey in December?
Is Monterrey rainy in December?
Is it sunny in Monterrey in December?
Other cities in Mexico
Monthly weather in Monterrey
Source of the data
For this page, we’ve looked at the typical weather in Monterrey, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
