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Monterrey weather in December

Weather in Monterrey: December

Average day temperature: 69.6°F
Average night temperature: 57.9°F
Number of sunny days: 22 days
Day length: 10.5 - 10.6 hours
Number of rainy days: 0 days
Precipitation totals: 0.1 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 88°F. At the same time the lowest night temperature was 44°F. Daily and nightly averages during December were 73.2°F and 58.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Monterrey in December is 0.1 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 3.8 mph It makes December lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 7.7.

Best time for vacation in Monterrey

Sunniest months:
December 22 days
March 22 days
October 20 days
Warmest months:
August 90.9 °F
June 90.4 °F
July 89.4 °F
Coldest months:
January 64.7 °F
February 68.3 °F
December 69.6 °F
Rainiest months:
May 2 days
September 2 days
June 1 day
Windiest months:
June 6.7 mph
August 6.3 mph
July 6.2 mph

Monterrey on a weather map

Monterrey
+86°F
W 6 mph
Feels like: +90°F
Precip.: 0%
Places in Mexico:
Name
°F
+82°F
+77°F
+79°F
+82°F
+82°F
+79°F
+61°F
+79°F
24 Hours Forecast
Monterrey
Local time: 15:44
January 07, wednesday
1800
77°F
NW
7 mph
2100
68°F
NW
6 mph
January 08, thursday
0000
64°F
NW
2 mph
0300
59°F
NW
1 mph
0600
59°F
SE
2 mph
0900
61°F
E
2 mph
1200
70°F
W
2 mph
1500
73°F
W
4 mph
Units of measurement: °C / °F