Last updated: April 22, 2025
December in Monterrey, Mexico brings a delightful mix of warm days and cool nights. With maximum temperatures reaching a toasty 33°C (92°F) and an average of 23°C (73°F), outdoor enthusiasts can enjoy plenty of sunshine. Nights cool down to a refreshing 13°C (55°F), offering a comfortable respite. Although precipitation is minimal with only 6 mm (0.2 in) expected across just one day, humidity levels linger around 75%, adding a touch of moisture to the air. This unique climate makes December an ideal time to explore the vibrant culture and stunning landscapes of Monterrey.
In Monterrey, Mexico, December marks a transition into cooler temperatures, with a minimum of 13°C (55°F) and an average of 23°C (73°F), making it a pleasant time to visit. While the highs remain consistent at 33°C (92°F), similar to the preceding months, the evenings grow crisper, inviting cozy gatherings. Compared to the warmer summer months, December's moderate climate offers a refreshing escape, ideal for exploring the city’s vibrant culture and stunning landscapes. As the year winds down, locals and visitors alike relish the mild temperatures, making it the perfect month to enjoy festive celebrations in this bustling metropolis.
In December, Monterrey experiences a notable decline in precipitation, totaling just 6 mm (0.2 in) over the month, with rainfall occurring on only 1 day. This modest amount crowns a year marked by a dramatic variance in rainfall, peaking in the summer months, particularly with June's hefty 281 mm and September's 302 mm. As temperatures cool and the dry season approaches, precipitation dwindles significantly from the heavy downpours of mid-year, highlighting the stark seasonal shifts that characterize Monterrey's climate. The month serves as a gentle reminder of winter's arrival, as the city braces for the drier months ahead while reflecting on the lush, rain-soaked months that preceded it.
In December, Monterrey, Mexico, experiences a noticeable dip in humidity, averaging around 75%. This marks a slight decrease from the higher levels observed in the summer months, when humidity peaks at around 82% in August and remains elevated through October. As the year winds down, the shift toward lower humidity is felt, though December still retains a level of moisture that’s characteristic of the region. Compared to the beginning of the year, when January's humidity sits at 70%, this month's conditions provide a balance that can be refreshing after the drier autumn days, hinting at the temperate climate that defines Monterrey in winter.
In December, Monterrey experiences a UV Index of 9, categorizing it as very high and resulting in a burn time of 15 minutes. This indicates a slight decrease from the extreme conditions seen in the preceding months, where the index consistently reached 14 or higher from March to July. However, as the year closes, residents and visitors should remain vigilant, as even a reduced index still poses significant sun exposure risk. Overall, the trend reflects Monterrey's consistently high UV levels throughout the year, with December offering a rare respite. For more detailed information, visit the Monterrey UV Index.
UV Risk Categories
In Monterrey, Mexico, the month of December shines brightly with an impressive 308 hours of sunlight, capping off the year with a warm glow. This figure reflects a delightful consistency in the region's sunny disposition, following a pattern of increasing daylight from January's 246 hours to a peak in July, where the average soars to 317 hours. As the year progresses, residents enjoy a gradual rise in sunshine, with each month contributing to a robust total that remains above 300 hours from November onward. This trend showcases Monterrey's charm as a winter destination, where even in the coldest months, the sun prevails, inviting both locals and visitors to bask in its warmth before the year concludes.
In Monterrey, Mexico, the likelihood of enjoying sunny weather in December is a refreshing 81%, making it one of the sunniest months following the rainy season. This trend showcases a notable increase from the preceding months, particularly compared to October and November, where the chances stood at 36% and 63%, respectively. As the year comes to a close, December reaffirms its position as a prime month for sunshine, hinting at a delightful winter experience characterized by bright days and mild temperatures. With this encouraging outlook, December offers an excellent backdrop for outdoor activities and holiday festivities in the vibrant city.
In Monterrey, Mexico, December brings about a return to a more subdued daylight duration, with 11 hours of sunlight. This reflects a consistent pattern observed during the winter months, as daylight gradually decreases from the peak of 13 hours in June. From December's brief daylight, the trend shifts back to 12 hours in March, showcasing a gradual transition into spring. The cyclic nature of daylight throughout the year highlights the city’s unique rhythm, where longer days of summer give way to cozy winter evenings, making December a time to embrace the crisp air and twinkling city lights as daylight takes its annual rest.
In Monterrey, Mexico, the December winds shift slightly from earlier in the year, with an average speed of 1.7 m/s (4 mph). This marks a notable dip compared to November's brisker 2.3 m/s (5 mph), suggesting the tail end of the year brings a more tranquil breeze. As we reflect on the entire year, a clear trend emerges: the winds peak in late fall, only to soften as we approach the summer months, where the gentlest breezes of 1.1 m/s (2 mph) were recorded in both June and August. This seasonal variability highlights the region's dynamic weather patterns, offering an inviting contrast to the warmer months and making December a serene time to enjoy Monterrey's vibrant scenery.
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 features a minimum temperature of 13°C (55°F) and an average of 23°C (73°F), reaching a maximum of 33°C (92°F). The month experiences a light precipitation of 6 mm (0.2 in) over just one day, with humidity levels at 75%. In contrast, January sees slightly cooler temperatures, with a minimum of 12°C (54°F), maintaining the same average of 23°C (73°F), and a maximum temperature similar at 33°C (93°F). Notably, January is drier, with only 4 mm (0.2 in) of precipitation across no rainy days, and humidity drops to 70%. For more detailed information, you can explore Monterrey weather in January.
December and February showcase a mild yet distinct shift in weather patterns. December typically experiences temperatures ranging from a minimum of 13°C (55°F) to a maximum of 33°C (92°F), with an average of 23°C (73°F). It also sees some humidity at 75% and light precipitation of 6 mm over one day. In contrast, February offers slightly warmer conditions, where temperatures range from a minimum of 12°C (54°F) to a maximum of 35°C (95°F), with an average of 24°C (75°F). Additionally, February enjoys much drier conditions with only 2 mm of precipitation over no days and lower humidity at 68%. For a detailed look at February's climate, visit Monterrey weather in February.
In December, temperatures range from a minimum of 13°C (55°F) to a maximum of 33°C (92°F), with an average temperature of 23°C (73°F). The month experiences minimal precipitation, with only 6 mm (0.2 in) of rain over just 1 day, and humidity levels are relatively high at 75%. In contrast, March feels a bit warmer, with temperatures starting at a minimum of 15°C (60°F) and peaking at 35°C (96°F), averaging 25°C (77°F). Like December, precipitation remains low at 6 mm (0.2 in) over 1 day, but the humidity is lower at 64%. For more detailed information, you can check Monterrey weather in March.
In comparing the weather between December and April, we see distinct differences in temperature and precipitation patterns. December has a milder temperature range with a minimum of 13°C (55°F) and maximum of 33°C (92°F), while April sees warmer conditions, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (97°F). Additionally, December experiences very little precipitation, averaging just 6 mm (0.2 in) over a single day, whereas April is notably wetter, with an average of 36 mm (1.4 in) across six rainy days. Humidity levels are also higher in December at 75%, compared to 67% in April. For more detailed weather information, you can visit Monterrey weather in April.
December in Monterrey features milder temperatures, with a minimum of 13°C (55°F) and an average of 23°C (73°F), peaking at a maximum of 33°C (92°F). The month experiences very little rainfall, with only 6 mm (0.2 in) over just 1 day, and humidity levels are relatively high at 75%.
In contrast, May brings warmer weather, showcasing a minimum temperature of 19°C (66°F) and an average of 26°C (79°F), reaching up to a maximum of 35°C (96°F). However, it also sees significantly higher precipitation, with 143 mm (5.6 in) over 25 days, while humidity remains similar at 74%. For a more detailed view of May's weather in Monterrey, visit Monterrey weather in May.
In December, the weather is generally warm, with temperatures ranging from a low of 13°C (55°F) to a high of 33°C (92°F) and an average of 23°C (73°F). This month experiences minimal precipitation, averaging just 6 mm (0.2 in) over one day, and humidity levels are at 75%. In contrast, June is significantly wetter, with a much higher rainfall total of 281 mm (11.1 in) spread over 27 days and an average temperature of 25°C (77°F), ranging from a minimum of 19°C (67°F) to a maximum of 33°C (92°F). The humidity in June is slightly elevated at 78%, contributing to the warm, muggy conditions typical of the peak rainy season. For more detailed information, check out Monterrey weather in June.
December weather in Monterrey features milder temperatures, with a minimum of 13°C (55°F) and an average high of 33°C (92°F), while experiencing low precipitation of just 6 mm (0.2 inches) over the course of only one day. In contrast, July brings warmer conditions, with minimum temperatures around 20°C (68°F) and an average high of 34°C (93°F). However, July is significantly wetter, accumulating a substantial 178 mm (7.0 inches) of rain across 26 days, leading to higher humidity levels of 81%. For a closer look at July's climate specifics, you can visit Monterrey weather in July.
When comparing the weather in December and August, it's clear that both months present distinct characteristics. December typically boasts milder temperatures, with a minimum of 13°C (55°F) and an average of 23°C (73°F), while August is warmer, featuring a minimum of 19°C (67°F) and an average of 25°C (77°F). Additionally, August experiences significantly higher precipitation, with 266 mm (10.5 in) over 26 days compared to December's modest 6 mm (0.2 in) across just 1 day. Humidity levels are also greater in August at 82%, contrasted with December's 75%. For further details on the August climate, you can check Monterrey weather in August.
When comparing December and September weather, December offers milder temperatures with an average ranging from a minimum of 13°C (55°F) to a maximum of 33°C (92°F). In contrast, September experiences slightly warmer temperatures, with averages between 19°C (67°F) and 32°C (90°F), but it is significantly wetter, seeing 302 mm (11.9 in) of precipitation over 28 days. Humidity levels are also relatively high in both months, with December at 75% and September slightly higher at 80%. For more details about the weather in September, you can visit Monterrey weather in September.
In comparing the weather between December and October, we see notable differences in temperature and precipitation. December typically has a milder climate with minimum temperatures around 13°C (55°F) and an average of 23°C (73°F), while October starts off warmer with a minimum of 17°C (63°F) and an average of 24°C (76°F). Both months can reach a maximum of 33°C (91°F), but October is characterized by significantly higher precipitation, totaling 231 mm (9.1 in) over 23 days, compared to December's much lighter rainfall of just 6 mm (0.2 in) over only 1 day. Additionally, humidity levels are slightly higher in October at 81%, compared to December’s 75%. For a more detailed look at October weather, you can visit Monterrey weather in October.
When comparing the weather in December and November, December tends to be slightly warmer, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 33°C (92°F), while November has an average range of 14°C (58°F) to the same maximum of 33°C (92°F). Precipitation also significantly decreases in December, with only 6 mm (0.2 in) recorded over 1 day, compared to November's 24 mm (0.9 in) spread over 5 days. Additionally, humidity levels are slightly lower in December at 75%, compared to November’s 80%. For more detailed information, you can check out Monterrey weather in November.
As December unfolds in Monterrey, the weather presents a delightful shift from the heat of previous months, offering a more temperate average that balances warmth and coolness. With daytime temperatures reaching their peak at a comfortable 33°C (92°F) but cooling significantly at night, this month creates a perfect environment for outdoor activities. The low humidity levels, combined with infrequent rain, enhance the overall pleasantness of the climate, making it an ideal time for visitors and locals alike. If you're planning a trip or just curious about the regional weather patterns, you can learn more at Monterrey Climate.