Climate and monthly weather forecastMonterrey, Mexico
Climate and monthly weather forecast
The climate of Monterrey
Nestled in northeastern Mexico, Monterrey can be characterized by its subtropical steppe climate, known in the Köppen climate classification as BSh. This massive metropolis grapples with clear seasonal changes in weather conditions, from hot summers to mild winters.A clear trend can be perceived in the fluctuation of temperatures throughout the year, peaking at averages of 31.5°C (88.7°F) to 31.7°C (89.1°F) in the summer months of July and August. The coldest months are December and January with low temperatures spanning from 8.3°C (46.9°F) to 9.5°C (49.1°F). This range signifies moderate variation in temperatures, making Monterrey a relatively warm area all year round.
Regarding other climate factors, Monterrey receives a fair amount of rainfall with the wettest month being May at 105mm (4.13"). On the contrary, January and February are the driest months with an average rainfall of 14mm (0.55"). Snowfall is encountered only in December at a minimal measurement of 6mm (0.24").
Humidity in Monterrey varies subtly from 50% to 69%, with September being the most humid month. The wind speeds peak in June and July at 11.9 Kph, declining to their lowest point of 7.4km/h (4.6mph) in December. As for sunshine, the city experiences the most sunny days in July with a generous 13.7 sunlight hours, dwindling down to 10.6 in December.
Despite these variations, the visibility remains consistently high at 10 km throughout the year, providing favorable conditions for outdoor activities.
The best time to visit Monterrey
Drawing upon the provided data, it would seem that the most ideal time to visit Monterrey is between May and June. During these months, temperatures are very pleasant, averaging between 28.8°C (83.8°F) and 31.3°C (88.3°F). Furthermore, there is a rich supply of sunshine with 13.4 to 13.7 daylight hours available. This dovetails nicely with a lower humidity of 58-59%, promoting the enjoyment of outdoor activities.The worst time to visit Monterrey
The least auspicious time to visit Monterrey crops up between September and November. In these months, the weather is indeed less stable. Despite relatively lower temperatures, from 19.1°C (66.4°F) to 27.6°C (81.7°F), the combination of high rainfall, up to 101mm (3.98") in September, and high humidity at 69% proves unfavorable. The length of daylight span also drops to 12.3 to 11.5 hours.Spring weather in Monterrey
Spring months in Monterrey, mainly from March to May, are noticeably temperate, with highs ranging from 25.2°C (77.4°F) to 30.5°C (86.9°F) and lows from 13.3°C (55.9°F) to 19.2°C (66.6°F). Rainfall begins at a modest 34mm (1.34") in March, escalating to 105mm (4.13") come May. Days become longer, with daylight hours oscillating between 12 and 13.4 hours.Summer weather in Monterrey
During the summer months (June to August), Monterrey experiences very high temperatures, floating from 30.5°C (86.9°F) to 31.7°C (89.1°F). Rainfall recedes slightly from its peak in May, but remains quite substantial until August, varying from 61mm (2.4") to 86mm (3.39"). It is during these months that sunshine is at its zenith, with daylight hours peaking at 13.7 in June.Autumn weather in Monterrey
Autumn in Monterrey sees a decrease in temperatures from highs of 31.7°C (89.1°F) in August, cooling down to 21.5°C (70.7°F) by November. This period is marked by a considerable escalation of rainfall in September up to 101mm (3.98"), but it rapidly recedes to 35mm (1.38") by October and further down to 25mm (0.98") in November. The humidity goes up, culminating at 69% in September, before decrementing again.Winter weather in Monterrey
Winter arrives in Monterrey with temperatures dropping to lows of 9.5°C (49.1°F) in December and peaking at 19.5°C (67.1°F). Rainfall is at its lowest, shrinking to 14mm (0.55") in December and January. Accumulated daylight is the shortest, reaching a minimum of 10.6 hours in December and starting to rise again to 10.9 hours by January. The only snowfall of the year occurs in December, with 6mm (0.24") of snow recorded.Weather in January
The start of the year in Monterrey, Mexico sees a shift from the colder weather experienced towards the end of the previous year. Although the temperature creeps up slightly in comparison to December, it remains relatively cool with the lowest temperature down to 8.3°C (46.9°F). Weather in January »Weather in February
As Monterrey transitions into February, the weather undergoes a subtle change. It tends to be a tad warmer than January with a peak temperature of 21.8°C (71.2°F), and fewer days of rainfall. Despite the relative increase in temperature, February still presents a comfortable climate for both outdoor activities and indoor engagements. Weather in February »Weather in March
March in Monterrey signals the onset of spring. A significant jump in temperature is observed, going up to 25.2°C (77.4°F), the city experiences more sunshine and the daylight hours increase. With the warmth comes increased rainfall, both in terms of amount and number of rainy days, more than any previous month this year. Weather in March »Weather in April
April delivers a more pronounced spring climate in Monterrey. Temperatures rise further to reach a toasty 28.8°C (83.8°F) and the city sees a reduction in rainfall compared to March. The landscape of Monterrey continues to flourish under the bright sunshine and extended daylight hours, making it a perfect time for sightseeing and enjoying the natural beauty of the city. Weather in April »Weather in May
May introduces the city of Monterrey to the early signs of summer. Topping off at 30.5°C (86.9°F), this month unsurprisingly brings the hottest weather thus far, while also hosting the maximum rainfall of 105mm (4.13") for the year. Weather in May »Weather in June
With June comes the full swing of summer in Monterrey, presenting some of the highest temperatures of the year, soaring up to 31.3°C (88.3°F). The city experiences the longest sunshine duration averaging 11.5 hours per day, although with fewer sunshine days compared to May. Weather in June »Weather in July
Monterrey's summer season is at its peak during July, witnessing the maximum yearly temperature of 31.5°C (88.7°F), and yet, the duration of sunshine decreases against the previous month. A welcome news for residents and tourists is the reduction in rainfall and rainy days compared to June. Weather in July »Weather in August
August continues the high-temperature trend in Monterrey with temperatures reaching up to 31.7°C (89.1°F), marking it as the hottest month of the year. However, this is balanced by a decrease in daylight hours and sunshine duration compared to July. Weather in August »Weather in September
As Monterrey moves into September, the city experiences a noticeable reduction in temperature down to 27.6°C (81.7°F) from the summer excesses, indicating the onset of autumn. Interestingly, the cloud coverage increases significantly, indicating a considerably cloudier skyline. Weather in September »Weather in October
October presents a marked shift in Monterrey's climate by maintaining temperatures below the threshold of 30°C (86°F) with a maximum at 25.9°. Rainfall recedes drastically from 101mm (3.98") to 35mm (1.38"), bringing relief to residents after eventful previous months. Weather in October »Weather in November
November depreciates Monterrey's warmth further, with temperatures decreasing to 21.5°C (70.7°F), making it one of the cooler months of the year. Interestingly, despite the shorter daylight hours and fewer sunshine hours, November sees a rise in the number of sunshine days compared to October. Weather in November »Weather in December
December is the transition point into winter for Monterrey, and the weather is cooler with the lowest temperature further decreasing to 19.5°C (67.1°F). Surprisingly, December is the only month that records any snowfall, although very minimal, sparking a festive spirit for the holiday season. Weather in December »Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, having an average high-temperature of 18.5°C (65.3°F) and an average low-temperature of 8.3°C (46.9°F), is the coldest month in Monterrey, Mexico.
In Monterrey, during the entire year, the rain falls for 158.3 days and collects up to 602mm (23.7") of precipitation.
January through November are months without snowfall in Monterrey, Mexico.
Throughout the year, in Monterrey, there are 0.5 snowfall days, and 6mm (0.24") of snow is accumulated.
January and December, with an average maximum UV index of 4, are months with the lowest UV index in Monterrey, Mexico.
The month with the least rainfall in Monterrey, Mexico, is February, when the rain falls for 7.1 days and typically collects 12mm (0.47") of precipitation.
With an average relative humidity of 50%, April is the least humid month.
May is the month with the most rainfall in Monterrey. Rain falls for 19.3 days and accumulates 105mm (4.13") of precipitation.
The months with the highest UV index in Monterrey are May and July, with an average maximum UV index of 7.
The month with the longest days in Monterrey is June, with an average of 13h and 42min of daylight.
June has the most sunshine of the year in Monterrey, Mexico, with an average of 11.5h of sunshine.
In Monterrey, Mexico, the peak temperatures are generally noted in August, averaging a high of 31.7°C (89.1°F) and a low of 20.8°C (69.4°F).
The most humid month is September, with an average relative humidity of 69%.
The month with the least sunshine in Monterrey, Mexico, is November, with an average of 7h of sunshine.
December is the only month when snow falls in Monterrey.
December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 6mm (0.24") of snow.
With an average of 10h and 36min of daylight, December has the shortest days of the year in Monterrey, Mexico.
Monterrey, Mexico, does not utilize Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
Monterrey, Mexico
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (18.5°C).
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).
Average pressure
Monterrey, Mexico
- Average pressure in January:
1019.5mbar - Average pressure in February:
1016.6mbar - Average pressure in March:
1015.1mbar - Average pressure in April:
1012.1mbar - Average pressure in May:
1011.6mbar - Average pressure in June:
1012.1mbar
- Average pressure in July:
1013.8mbar - Average pressure in August:
1013.5mbar - Average pressure in September:
1014.2mbar - Average pressure in October:
1015.4mbar - Average pressure in November:
1018.3mbar - Average pressure in December:
1018.1mbar
The month with the highest atmospheric pressure is January (1019.5mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).
Average wind speed
Monterrey, Mexico
- Average wind speed in January:
8km/h - Average wind speed in February:
8.5km/h - Average wind speed in March:
10.1km/h - Average wind speed in April:
11km/h - Average wind speed in May:
11.2km/h - Average wind speed in June:
11.9km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
10.8km/h - Average wind speed in September:
9km/h - Average wind speed in October:
8.6km/h - Average wind speed in November:
8km/h - Average wind speed in December:
7.4km/h
The windiest months (with the highest average wind speed) are June and July (11.9km/h).
The calmest month (with the lowest average wind speed) is December (7.4km/h).
Average humidity
Monterrey, Mexico
The month with the highest relative humidity is September (69%).
The month with the lowest relative humidity is April (50%).
Average rainfall
Monterrey, Mexico
The wettest month (with the highest rainfall) is May (105mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days
Monterrey, Mexico
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
19.3 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
22.8 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is September (22.8 days).
The month with the least rainy days is December (6 days).
Average snowfall
Monterrey, Mexico
The month with the highest snowfall is December (6mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Monterrey, Mexico
- Average snowfall days in January:
0.2 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Monterrey, Mexico
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 24min - Average daylight in June:
13h and 42min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 36min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January:
9h and 6min - Average sunshine in February:
9h and 18min - Average sunshine in March:
9h and 6min - Average sunshine in April:
9h and 6min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 42min - Average sunshine in October:
9h and 12min - Average sunshine in November:
7h and 0min - Average sunshine in December:
7h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days
Monterrey, Mexico
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
15.6 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
7.7 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.7 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
5.5 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
18 days - Average sunshine days in December:
21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is September (5.5 days).
Average UV index
Monterrey, Mexico
The months with the highest UV index are May and July (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover
Monterrey, Mexico
The month with the most cloud cover is September (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility
Monterrey, Mexico
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (10km).
The month with the lowest visibility is September (9km).
