Monterrey weather in December
December is one of the best months to visit Monterrey: highs of 19°C (66°F) and about 15 mm (0.6 in) of rain on average. Nights average 4°C (39°F) and cloud cover 44% (NASA POWER, 2001–2025 averages). It is the driest month of the year and the 2nd coolest. Compared with November, it is cooler and drier; January brings highs of 18°C (65°F) and 17 mm (0.7 in) of rain.
Is December a good time to visit Monterrey?
best month Weather score 86/100.
Yes. December is one of the best months for weather in Monterrey.
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Does it rain a lot in Monterrey in December?
No, it is usually dry: about 15 mm (0.6 in) falls in an average December. It is the driest month of the year.
How warm is Monterrey in December?
Days average 19°C (66°F) and nights 4°C (39°F).
Monterrey weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 18°C (65°F) | 3°C (38°F) | 17 mm | 48% | fair |
| February | 21°C (70°F) | 5°C (41°F) | 15 mm | 45% | best |
| March | 24°C (76°F) | 8°C (46°F) | 23 mm | 45% | best |
| April | 28°C (83°F) | 12°C (53°F) | 23 mm | 47% | best |
| May | 30°C (85°F) | 14°C (57°F) | 44 mm | 46% | best |
| June | 30°C (85°F) | 15°C (60°F) | 55 mm | 42% | fair |
| July | 29°C (83°F) | 15°C (59°F) | 86 mm | 47% | fair |
| August | 28°C (83°F) | 15°C (59°F) | 58 mm | 41% | fair |
| September | 25°C (77°F) | 14°C (57°F) | 132 mm | 52% | least pleasant |
| October | 24°C (76°F) | 11°C (51°F) | 43 mm | 37% | best |
| November | 21°C (70°F) | 7°C (44°F) | 20 mm | 38% | best |
| December | 19°C (66°F) | 4°C (39°F) | 15 mm | 44% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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