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Monterrey, Nuevo León Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Monterrey, Nuevo León?
Monterrey, Nuevo León gets 418 mm of precipitation a year over about 46 rainy days. August is the warmest month (average high 37°C) and January the coldest (average low 9°C).
Semi-arid climate
Monterrey, Nuevo León has hot summers and warm winters. Daytime highs range from about 23°C in January to 36°C in August. September is usually the wettest month. The most comfortable time to visit is typically January to February and November to December, when daytime highs sit near 24°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 11° | 24° |
| Spring | Mar–May | 18° | 32° |
| Summer | Jun–Aug | 23° | 36° |
| Autumn | Sep–Nov | 18° | 29° |
How much rain does Monterrey get?
Monterrey gets 418 mm of precipitation in an average year, spread over about 46 days with measurable rain. That is fewer rainy days than 70% of Mexico.
September is the wettest month, with 120 mm. February is the driest, with 10 mm. September has the most rainy days, about 6.
The longest dry spell in the last five years lasted 20 days, to March 8, 2024.
From October 2025 to September 2026 Monterrey got 326 mm of rain, against a normal of 418 mm for those months. June 2026 had the most, with 115 mm.
Monterrey weather by month
Monterrey weather in January
In January, Monterrey averages a high of 23°C and a low of 9°C. It gets 12 mm of precipitation over about 3 rainy days. Estimated sunshine is 57% of daylight hours, derived from ERA5 cloud cover. The January record high is 36°C (2017) and the record low is -2°C (1979). January is one of the most comfortable months to visit.
Monterrey weather in February
In February, Monterrey averages a high of 26°C and a low of 12°C. It gets 10 mm of precipitation over about 3 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The February record high is 41°C (2009) and the record low is -4°C (1985). February is one of the most comfortable months to visit.
Monterrey weather in March
In March, Monterrey averages a high of 28°C and a low of 15°C. It gets 15 mm of precipitation over about 3 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The March record high is 42°C (1991) and the record low is 0°C (1980).
Monterrey weather in April
In April, Monterrey averages a high of 32°C and a low of 18°C. It gets 19 mm of precipitation over about 4 rainy days. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. The April record high is 44°C (1999) and the record low is 6°C (1987).
Monterrey weather in May
In May, Monterrey averages a high of 34°C and a low of 21°C. It gets 27 mm of precipitation over about 5 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The May record high is 46°C (2002) and the record low is 11°C (2013).
Monterrey weather in June
In June, Monterrey averages a high of 36°C and a low of 23°C. It gets 47 mm of precipitation over about 4 rainy days. Estimated sunshine is 66% of daylight hours, derived from ERA5 cloud cover. The June record high is 45°C (2019) and the record low is 16°C (1984).
Monterrey weather in July
In July, Monterrey averages a high of 36°C and a low of 23°C. It gets 38 mm of precipitation over about 3 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The July record high is 44°C (1992) and the record low is 19°C (2008).
Monterrey weather in August
In August, Monterrey averages a high of 37°C and a low of 23°C. It gets 45 mm of precipitation over about 4 rainy days. Estimated sunshine is 67% of daylight hours, derived from ERA5 cloud cover. The August record high is 42°C (2019) and the record low is 20°C (2004).
Monterrey weather in September
In September, Monterrey averages a high of 33°C and a low of 22°C. It gets 120 mm of precipitation over about 6 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The September record high is 41°C (2023) and the record low is 11°C (2006).
Monterrey weather in October
In October, Monterrey averages a high of 29°C and a low of 18°C. It gets 47 mm of precipitation over about 5 rainy days. Estimated sunshine is 62% of daylight hours, derived from ERA5 cloud cover. The October record high is 41°C (2007) and the record low is 5°C (2000).
Monterrey weather in November
In November, Monterrey averages a high of 26°C and a low of 14°C. It gets 24 mm of precipitation over about 4 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The November record high is 38°C (1990) and the record low is 2°C (1993). November is one of the most comfortable months to visit.
Monterrey weather in December
In December, Monterrey averages a high of 23°C and a low of 11°C. It gets 13 mm of precipitation over about 3 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The December record high is 36°C (2021) and the record low is -7°C (1983). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Monterrey
August is the sunniest month in Monterrey, with estimated sunshine of 67% of daylight hours from ERA5 cloud cover. April is the cloudiest, at 50%. The annual cloud-cover estimate is 60% of daylight hours; it is not a measurement of sunshine duration. Monterrey is sunnier than 78% of Mexico.
Humidity peaks in November at 70% and is lowest in March at 56%.
Monterrey has about 86 days a year above 32°C. Monterrey is cooler than 54% of Mexico.
Monterrey weather records
These records cover MONTERREY (CITY) during 1977–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Monterrey station is 46°C, on May 3, 2002. The coldest is -7°C, on December 27, 1983.
The wettest day in the available station history brought 211 mm of precipitation, on October 17, 2024.
25 all-time records have been set at the station since 1977.
The best time to visit Monterrey
The most comfortable time to visit is typically January to February and November to December, when daytime highs sit near 24°C.
Winter (December–February) is warm, with average highs around 24°C and lows near 11°C.
Spring (March–May) is hot, with average highs around 32°C and lows near 18°C.
Summer (June–August) is hot, with average highs around 36°C and lows near 23°C.
Autumn (September–November) is hot, with average highs around 29°C and lows near 18°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 9° | 23° | 12 mm | 3 | 58% | 57% | 36° | -2° |
| February | 12° | 26° | 9.7 mm | 3 | 58% | 60% | 41° | -4° |
| March | 15° | 28° | 15 mm | 3 | 56% | 58% | 42° | 0° |
| April | 18° | 32° | 19 mm | 4 | 62% | 50% | 44° | 6° |
| May | 21° | 34° | 27 mm | 5 | 64% | 61% | 46° | 11° |
| June | 23° | 36° | 47 mm | 4 | 62% | 66% | 45° | 16° |
| July | 23° | 36° | 38 mm | 3 | 60% | 58% | 44° | 19° |
| August | 23° | 37° | 45 mm | 4 | 57% | 67% | 42° | 20° |
| September | 22° | 33° | 120 mm | 6 | 63% | 61% | 41° | 11° |
| October | 18° | 29° | 47 mm | 5 | 65% | 62% | 41° | 5° |
| November | 14° | 26° | 24 mm | 4 | 70% | 58% | 38° | 2° |
| December | 11° | 23° | 13 mm | 3 | 64% | 60% | 36° | -7° |
Station: MONTERREY (CITY), 6 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1977–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Monterrey climate questions
How much rain does Monterrey get?
Monterrey gets 418 mm of precipitation in an average year, over about 46 rainy days.
What is the wettest month in Monterrey?
September is the wettest month in Monterrey, with 120 mm. February is the driest, with 10 mm.
How many rainy days does Monterrey have a year?
Monterrey has about 46 days with measurable rain in an average year. September has the most, about 6.
What is the hottest month in Monterrey?
August is the warmest month in Monterrey, with an average high of 37°C.
What is the coldest month in Monterrey?
January is the coldest month in Monterrey, with an average low of 9°C.
What is the record high temperature in Monterrey?
Within the available 1977–2026 station history, the record high at the Monterrey station is 46°C, set on May 3, 2002. The record low is -7°C, on December 27, 1983.
What is the sunniest month in Monterrey?
August is the sunniest month in Monterrey, with estimated sunshine of 67% of daylight hours from ERA5 cloud cover. April is the cloudiest.
What is the best time to visit Monterrey?
The most comfortable time to visit is typically January to February and November to December, when daytime highs sit near 24°C.
Climate for places near Monterrey, Nuevo León
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