Last updated: April 22, 2025
December in Monterrey, Mexico offers a captivating blend of weather experiences. With maximum temperatures soaring to 33°C (92°F) and an average of 16°C (61°F), the month showcases warmth, while occasional chilly nights can drop to a brisk 1°C (34°F). Rainfall is modest, totaling around 26 mm (1.0 in) over about 4 days, making for a predominantly dry month. Despite the warmth, humidity levels hover around 80%, enhancing the tropical feel. This dynamic climate invites visitors to enjoy a variety of outdoor activities while also preparing for cooler evenings.
In Monterrey, Mexico, December usher in a blissful transition from the milder fall temperatures to the chill of winter, marked by a minimum of 1°C (34°F) and an average of 16°C (61°F). The daytime max temperatures still reach a pleasant 33°C (92°F), creating a delightful blend of cool mornings and warmer afternoons. As the year draws to a close, December's weather reflects the city's characteristic warmth, while gently hinting at the colder months ahead. With temperatures gradually dropping from the highs of summer, this month offers a refreshing respite, showcasing Monterrey as a city where winter never feels too harsh. Overall, the consistent averages indicate a pleasing climate for outdoor activities and exploration during the festive season.
In December, Monterrey experiences a mild decline in precipitation, receiving 26 mm (1.0 in) over the course of 4 days. This marks a subtle decrease from November's 31 mm (1.2 in), illustrating a general trend of tapering rainfall as the year comes to a close. With consistent moisture throughout the earlier months, particularly September's 104 mm (4.1 in), December's lower totals signal the approach of drier winter months. Despite this reduction, the festive season continues to thrive, as the city's vibrant atmosphere remains largely unaffected by the shifting weather patterns.
In Monterrey, Mexico, December ushers in a noticeable drop in humidity compared to the preceding months, with levels resting at around 80%. This marks a subtle decline from the peak seen in November, but it remains significantly higher than the mid-year averages, particularly in July and August, when humidity dipped to its lowest at 57% and 58%, respectively. As the year progresses towards the colder months, there's a clear trend of increasing humidity, culminating in the highest readings during the autumn. This pattern illustrates how the climate transitions dramatically, making December a month characterized by a moist chill in the air, setting the stage for the winter season ahead.
In Monterrey, Mexico, December marks a notable shift in the UV Index, with a value of 6, categorized as high. This reduction from the extreme levels experienced in the summer months of April through October, when UV indices peaked at 13, indicates a dip in solar intensity as winter approaches. The burn time extends back to 25 minutes, similar to January, allowing residents and visitors a bit more leeway in enjoying outdoor activities. As the year wraps up, the UV exposure trend showcases a clear seasonal transition, reminding us to stay vigilant, even in milder months. For more detailed insights and real-time updates, check the full data at Monterrey UV Index.
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In December, Monterrey experiences a shift in sunlight, with 267 hours of bright rays illuminating the city. This month marks a slight decline from the vibrant sunshine of the previous summer months, peaking in August at 346 hours. As the year winds down, the trend reveals a gradual decrease in daylight from the sunniest season, yet December's hours still maintain a cheerful glow, outpacing January's 208 hours. While the city embraces the cooler temperatures, the lingering sunshine reflects a pleasant farewell to the year, inviting residents and visitors alike to bask in Monterrey's festive atmosphere.
In December, Monterrey, Mexico, enjoys a 58% chance of sunny weather, consistently hovering near the month's average over the year. This likelihood places it in line with similar months like November and February, both showing comparable sunshine percentages. Interestingly, December's weather continues a trend of fluctuating sun chances, peaking at 62% in March and August while dipping to a low of 45% in July. As the year winds down, residents and visitors can still look forward to a respectable amount of bright days, making it a delightful time to experience the city's charm under the winter sun.
In Monterrey, Mexico, the rhythm of daylight changes throughout the year, creating a captivating cycle. December ushers in a return to shorter days, with only 10 hours of daylight, echoing the patterns observed in January and November. As the year progresses from January’s 10 hours to a peak of 13 hours in May through July, daylight gradually extends, enhancing the vibrancy of spring and summer. By late summer, the days slowly recede, dropping back to 12 hours in August and September, before settling into the familiar shorter days of winter. This dance of daylight not only marks the changing seasons but also shapes the lifestyle and activities of those in Monterrey, inviting everyone to savor the light while it lasts.
As December settles over Monterrey, Mexico, the city experiences a gentle lull in wind activity, with average speeds dropping to 1.7 m/s (4 mph). This marks a notable decrease compared to the slightly breezier months that precede it, where winds typically ranged from 2.0 to 2.6 m/s (5 to 6 mph). Throughout the year, a subtle upward trend in wind speeds can be observed from January to May, peaking in March and May before gradually tapering off as the year closes. By December, the cooler temperatures and atmospheric shifts usher in a tranquil breeziness, perfect for reflecting on the dynamic climatic dance of Monterrey's seasons.
The weather in Monterrey changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Monterrey and find detailed weather information for every month.
In December, the weather in Monterrey is generally warmer, with an average temperature of 16°C (61°F) and highs reaching up to 33°C (92°F). The month experiences minimal precipitation at 26 mm (1.0 in) over just four days, along with relatively high humidity at 80%. In contrast, January brings a noticeable drop in temperatures, with average highs of 33°C (91°F) and lows dipping to -2°C (29°F), making the climate feel considerably cooler overall. Precipitation slightly increases to 28 mm (1.1 in) over the same four days, but humidity decreases to 75%. For more detailed weather information, you can refer to Monterrey weather in January.
In December, Monterrey experiences mild temperatures, with a minimum of 1°C (34°F) and an average of 16°C (61°F), reaching a maximum of 33°C (92°F). The month has about 26 mm (1.0 in) of precipitation spread over 4 days, paired with high humidity levels of 80%. In contrast, February brings even cooler nights with temperatures dipping to a minimum of -3°C (27°F), while the average remains similar at 16°C (62°F) and daytime highs can reach 35°C (95°F). February sees slightly less precipitation at 20 mm (0.8 in) over the same number of days but enjoys lower humidity at 70%. For more details, check out Monterrey weather in February.
In December, the weather typically features a minimum temperature of 1°C (34°F) and can reach a maximum of 33°C (92°F), with an average temperature around 16°C (61°F). The month experiences about 26 mm (1.0 in) of precipitation over approximately 4 days, with humidity levels around 80%. In contrast, March sees slightly milder conditions, with a minimum temperature of 3°C (38°F) and a higher average of 20°C (69°F), peaking at 35°C (95°F). Precipitation increases to 36 mm (1.4 in) across about 7 days, while humidity drops to approximately 65%. For more details on the typical climate, check out Monterrey weather in March.
December weather in Monterrey is characterized by milder temperatures, with a minimum of 1°C (34°F) and an average high of 33°C (92°F). The humidity levels are quite high at 80%, and precipitation is relatively low at 26 mm (1.0 in) over about four days. In contrast, April experiences warmer conditions, with minimum temperatures starting at 7°C (44°F) and maximums soaring up to 39°C (102°F). Rainfall increases to 48 mm (1.9 in) spread over seven days, and humidity drops to a more comfortable 59%. This shift makes April notably warmer and wetter compared to the cooler and drier December. For more details, check out Monterrey weather in April.
In December, Monterrey experiences milder temperatures with a minimum of 1°C (34°F) and an average high of 33°C (92°F), making it a pleasant time of year despite the occasional chill. There is relatively low precipitation, with around 26 mm (1.0 in) over just 4 days, and the humidity typically hovers around 80%. In contrast, May brings warmer weather, featuring a minimum temperature of 15°C (59°F) and an average high that can reach up to 40°C (105°F). Rainfall is more frequent in May, totaling 72 mm (2.8 in) over about 10 days, and the humidity drops to a more comfortable 66%. For more detailed insights on the conditions in May, visit Monterrey weather in May.
Comparing the weather in December and June reveals significant differences. December experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 16°C (61°F), while June boasts much warmer conditions, starting at a minimum of 18°C (65°F) and averaging 27°C (81°F). In terms of maximum temperatures, June can reach a scorching 39°C (103°F), compared to December's peak of 33°C (92°F). Additionally, June tends to be wetter, receiving 56 mm (2.2 in) of precipitation over about 7 days, as opposed to December's 26 mm (1.0 in) over just 4 days. Humidity levels also differ, with December being more humid at 80% compared to June's 71%. For a more detailed overview, check out Monterrey weather in June.
In December, temperatures in Monterrey range from a chilly minimum of 1°C (34°F) to a pleasant average of 16°C (61°F), with highs peaking at 33°C (92°F). The month sees moderate precipitation of 26 mm (1.0 in) over about 4 days, accompanied by high humidity levels at 80%. In contrast, July experiences much warmer weather, with temperatures beginning at a minimum of 20°C (68°F), averaging 28°C (82°F), and soaring to a maximum of 38°C (100°F). July is also wetter, receiving 71 mm (2.8 in) of rainfall throughout about 6 days, but with lower humidity at 57%. For more details, you can check Monterrey weather in July.
In December, temperatures in Monterrey range from a chilly minimum of 1°C (34°F) to a warm maximum of 33°C (92°F), with an average of 16°C (61°F). The month typically sees about 26 mm (1.0 in) of precipitation over four days, accompanied by a high humidity level of around 80%. In contrast, August boasts much warmer conditions, with a minimum of 20°C (68°F) and a scorching maximum of 38°C (100°F), averaging 28°C (83°F). Precipitation is significantly lower at 9 mm (0.3 in) over just two days, and the humidity drops to a more comfortable 58%. For more details on the August weather, you can visit Monterrey weather in August.
In comparing the weather of December and September, December tends to be much cooler with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 33°C (92°F), while September enjoys warmer conditions with lower minimums of 16°C (61°F) and higher maximums reaching up to 37°C (99°F). Additionally, September experiences significantly more rainfall with 104 mm (4.1 in) over about 10 days compared to December's lighter precipitation of 26 mm (1.0 in) across just 4 days. Humidity is also slightly higher in December at 80%, compared to 72% in September, making the latter month feel warmer overall. For a more detailed look at September weather, check out Monterrey weather in September.
When comparing the weather in December and October, October tends to be warmer overall, with average temperatures reaching 22°C (72°F) and maximums peaking at 36°C (97°F). In contrast, December experiences a cooler range, with an average of 16°C (61°F) and a maximum of 33°C (92°F). Precipitation levels are also higher in October, totaling 52 mm (2.0 in) over 8 days, compared to December's 26 mm (1.0 in) over just 4 days. Both months have relatively high humidity, but December is slightly more humid at 80% compared to October's 76%. For more detailed insights into October's weather, you can visit Monterrey weather in October.
In comparing the weather between November and December, we see some notable differences. December's temperatures fluctuate from a minimum of 1°C (34°F) to a maximum of 33°C (92°F), averaging around 16°C (61°F). In contrast, November has slightly milder averages, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 32°C (90°F), averaging 18°C (65°F). Additionally, December experiences less precipitation at 26 mm (1.0 in) over 4 days, compared to November's 31 mm (1.2 in) over 6 days, making December a drier month overall. Humidity levels are quite similar in both months, with December at 80% and November slightly higher at 81%. For more detailed insights, check out Monterrey weather in November.
As December rolls into Monterrey, the city experiences a delightful shift in weather patterns compared to the rest of the year. While temperatures can peak at a warm 33°C (92°F), the average hovers around a comfortable 16°C (61°F), allowing residents and visitors to enjoy a refreshing departure from the summer heat. The month sees a mild increase in precipitation, with about four rainy days and a total of 26 mm (1.0 in), contributing to an overall humidity level of around 80%. This unique blend of conditions makes December a perfect time for outdoor activities and stargazing in the crisp evening air. For more insights into the distinctive climate of Monterrey, visit Monterrey Climate.