Climate Overview
The climate in Monterrey is hot. The average annual temperature is 26°C and approximately 1770mm of precipitation falls per year. May is the wettest month, receiving around 329mm of rainfall. Monterrey sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Monterrey sees moderate temperature variation throughout the year, ranging from 21°C to 33°C. The warmest month is February, when average highs reach 33°C and the mean temperature sits around 28°C. August is the coolest month, with minimum temperatures around 21°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.
Precipitation
Monterrey is a fairly wet location, receiving approximately 1770mm of precipitation annually, which averages out to around 148mm per month. The wettest month is May, averaging 329mm of rainfall. June and April also tend to see above-average precipitation. The driest month is January, with just 16mm. That's 314mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Monterrey is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
93 days until Autumn
It is currently summer in Monterrey, which began on June 21, 2026. Monterrey sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 33°C, while the coldest stretch bottoms out in August near 21°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 22 to 33°C. Rainfall is heavy, totalling around 647mm across the season with a monthly average of 216mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 638mm across the season with a monthly average of 213mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 21 to 30°C. Rainfall is heavy, totalling around 416mm across the season with a monthly average of 139mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 33°C. Rainfall is relatively light, with around 69mm over the season and a monthly average of 23mm. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Monterrey based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
