Monterrey Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to pleasant in Monterrey. Average daytime temperatures reach a very warm 33°C (91°F) in August. In January, the coolest month of the year, temperatures drop to a pleasant 20°C (68°F).

At night, temperatures range from around 21°C (70°F) in August to 8°C (46°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Monterrey has a moderate amount of precipitation, averaging 831 mm (33 in) of rainfall annually. Monterrey can be quite wet during September, receiving approximately 150 mm (5.9 in) of precipitation over 7 rainy days.

In contrast, during the driest month (December), you will experience much drier conditions, with 38 mm (1.5 in) of precipitation spread across 3 rainy days days. For more details, please visit our Monterrey Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Monterrey can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 8.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Monterrey.

The city experiences its highest humidity in October, reaching 72%. In March, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year