Climate Chart of Monterrey, Mexico

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

The coolest monthly mean is 14.0 °C in January, while the warmest monthly mean is 28.4 °C in August. These are monthly averages rather than daytime maximum temperatures, so they do not indicate how warm every afternoon may be. The unweighted mean across the monthly means is 21.8 °C, providing a broad reference for the period without representing a day-weighted annual average.

Rain

Mean daily rainfall reaches its highest monthly value, 4.81 mm/day, in September; the lowest monthly mean is 0.63 mm/day in February. These figures describe average daily amounts, not monthly rainfall totals, and the lower mean does not guarantee rain-free days. The unweighted mean across the monthly means is 1.75 mm/day, a broad summary that does not show how rainfall is distributed among individual days.

Sunshine

Mean daily sunshine duration is highest at 11.85 hours/day in June and lowest at 7.85 hours/day in November. The unweighted mean across monthly means is 9.75 hours/day. These figures can help with broad outdoor-planning expectations, but sunshine duration is not the same as day length and a monthly mean cannot guarantee the conditions on a particular day.

Snow

The highest monthly mean daily snowfall is 0.11 mm/day in December, and the unweighted mean across monthly means is 0.02 mm/day. These small daily averages do not establish how many days receive snow, whether snow accumulates or remains on the ground, or whether conditions support skiing.

Best Travel Time Guide for Monterrey, Mexico: Ideal Seasons and Weather Insights

Visitors prioritising lower average rainfall could consider February, when mean daily rainfall is 0.63 mm/day; this is a criterion-specific option, not a promise of dry weather or a measure of rain frequency. For rain preparation, note that the highest monthly mean daily rainfall is 4.81 mm/day in September, and plan for the possibility of wet days rather than relying on the average alone. For cooler monthly mean temperatures, January is the relevant reference, with a mean of 14.0 °C; this does not describe daytime highs or guarantee a particular day's feel. For daylight outdoor planning, mean daily sunshine is highest in June at 11.85 hours/day, and lowest in November at 7.85 hours/day. Sunshine duration is not day length, and these monthly averages cannot forecast individual days.

The recorded highest monthly mean daily snowfall is 0.11 mm/day in December. It is not evidence of a particular number of snowy days, snow depth or lasting snow cover, so it cannot by itself guide expectations for snow-based activities.

Climate Data Overview for Monterrey, Mexico

Explore the comprehensive climate data for Monterrey, Mexico. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Monterrey
• Explore the climate in Mexico