Monterrey weather in December 2025

Expect daytime maximum temperatures of 70°F in Monterrey, Mexico in December based on long-term weather averages. There are 4 hours of sunshine per day on average.

  • 70°F maximum daytime temperature in December in Monterrey70
    70°F max day temperature
  • 4 hours of sunshine per day
  • 3 days with some rainfall in December in Monterrey3
    3 days with some rainfall
  • 50°F minimum night-time temperature in December in Monterrey50
    50°F min night temperature
  • 11 hours of daylight per day in December in Monterrey11
    11 hours of daylight per day
  • No heat & humidity in December in Monterrey0
    No heat & humidity
  • 0.7 inches monthly rainfall in December in Monterrey0.7
    0.7 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in December in Monterrey5
    5 (Moderate) UV index

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The December weather guide for Mexico (Monterrey) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Monterrey in December?

Daytime temperatures usually reach 70°F in Monterrey in December, falling to 50°F at night.

How sunny is it in Monterrey in December?

There are normally 4 hours of bright sunshine each day in Monterrey in December - that's 35% of daylight hours.

Does it ever rain in Monterrey in December?

There are usually 3 days with some rain in Monterrey in December and the average monthly rainfall is 0.7 inches.

Monterrey December sunrise & sunset times

Browse the sunrise and sunset times for Monterrey in December 2025. Select a month to view Monterrey sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:11 17:50
Tuesday, 16th December 2025 07:21 17:53
Wednesday, 31st December 2025 07:27 18:02

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