Last updated: April 22, 2025
In La Union, Mexico, December brings a delightful mix of mild temperatures and refreshing humidity. With maximum highs reaching 30°C (87°F) and a comfortable average of 19°C (66°F), the days invite outdoor exploration. Nights cool down to a minimum of 8°C (47°F), offering a pleasant respite. While the month sees a modest precipitation total of 16 mm (0.6 in) over just two days, the 80% humidity adds a tropical feel to the air. December is truly a charming time to experience the vibrant landscapes and rich culture of this coastal paradise.
As December rolls into La Union, Mexico, the temperatures begin to show a slight but noticeable shift from the preceding months. With minimums hovering around 8°C (47°F), the crisp winter air invites cozy evenings, while average temperatures settle at a comfortable 19°C (66°F). The max temperatures reach a pleasant 30°C (87°F), ensuring that sun-soaked afternoons remain a hallmark of the season. This gradual transition from the warmer autumn months highlights December as a time of mild climatic cheer, making it an ideal month for outdoor activities and festive gatherings. The trend of milder evenings paired with delightful daytime warmth creates a unique charm that enchants both locals and visitors alike.
December in La Union, Mexico, sees 16 mm (0.6 in) of precipitation, a modest amount that marks the tail end of the wet season. With 2 days of rain on average, it showcases a slight decrease compared to the preceding months, particularly November, which recorded 28 mm (1.1 in). This trend reflects a gradual tapering off of the rainy season, transitioning from the heavier downpours experienced between July and September, where rainfall peaked at 77 mm (3.0 in). Despite the dip in both precipitation amount and rainy days, December's weather remains vital for replenishing local water sources, allowing the region to reset as it prepares for the drier months ahead.
As December rolls into La Union, Mexico, the humidity sees a notable rise, reaching 80%—a level reminiscent of the lush, tropical vibes found in the peak of summer months. This increase is part of a consistent trend observed throughout the year, where humidity generally declines from 74% in January to a minimum of 47% in May before climbing back up as the year draws to a close. The summer months of July through September experience a notable spike, peaking at 82% in September. By December, the slightly elevated humidity serves as a reminder of the region's warm climate, as it tactfully balances the cooler air of the approaching winter, making the atmosphere rich and inviting for both locals and visitors alike.
In December, La Union, Mexico experiences a moderate UV Index of 5, with a burn time of 30 minutes—a respite from the extreme levels observed in the summer months. This drop marks a noticeable trend as the year comes to a close. Prior to December, from April to August, the UV Index consistently reached an extreme rating of 12, necessitating cautious sun exposure of just 10 minutes. As the seasons transition, the UV Index decreases, suggesting more comfortable and safer outdoor conditions, especially for those planning to enjoy the stunning coastal beauty. For the most accurate and up-to-date information on UV levels, check out La Union UV Index.
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In December, La Union, Mexico, enjoys a delightful 263 hours of sunshine, reflecting a trend of abundant sunlight that peaks during the spring and summer months. Starting from 220 hours in January and building momentum through the year, the sun reaches its zenith in May with an impressive 364 hours. As the year winds down, December's sunshine crowns a year marked by vibrant daylight; although it experiences a slight dip from the previous months, this still offers a warm escape from winter. The overall pattern reveals that, despite lower hours in winter, La Union consistently shines as a sun-kissed haven, making it an appealing choice for those seeking warmth during the colder months.
In La Union, Mexico, December brings a notable shift in weather, with the likelihood of sunny days dropping to 52%. This decline follows a trend observed from the warmer months, where the chances of sunshine peak in October at 84% and remain relatively high through November at 69%. As the year winds down, the vibrant sun gives way to more overcast conditions, a stark contrast to the sunnier days of early spring and summer. However, with over half the month still offering potential for clear skies, December provides a balance of sun and clouds, perfect for those looking to enjoy the region's mild temperatures while embracing the festive season.
In December, La Union, Mexico experiences a daylight duration of 10 hours, mirroring the shorter days of January and November. This month marks the end of a gradual decline from the 12 to 13 hours of daylight seen from March through August. As the year winds down, the pattern clearly showcases a seasonal rhythm, with daylight peaking in the hotter months and tapering off as winter approaches. By December, residents enjoy a cozy, sun-laden atmosphere that harkens back to the earlier months, while the steady transition towards longer days will soon begin anew.
As December rolls into La Union, Mexico, the average wind speed settles at a moderate 2.6 m/s (6 mph), mirroring the gentle breezes of the preceding months. This transition towards the end of the year reveals a subtle pattern: while we see slightly higher winds in the earlier summer months, particularly June at 3.4 m/s, the overall trend indicates a shift towards calmer conditions as winter approaches. Notably, the light winds of December echo the patterns from earlier in the year, where the speed fluctuated between 2.4 m/s in November and 3.4 m/s in mid-year. As the last month of the year unfolds, La Union continues to enjoy a serene coastal charm, perfect for leisurely beach days and stargazing under the gentle night sky.
The weather in La Union 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 La Union and find detailed weather information for every month.
December and January present similar temperature ranges, with December experiencing slightly warmer averages. In December, the minimum temperature is about 8°C (47°F) and the average reaches up to 19°C (66°F), while January sees a minimum of 7°C (45°F) and an average of 18°C (64°F). Both months have maximum temperatures peaking at 30°C (87°F) and 30°C (86°F), respectively. However, December has marginally higher precipitation at 16 mm (0.6 in) over two days, compared to January’s 13 mm (0.5 in) over just one day. Additionally, humidity is noticeably higher in December at 80%, whereas January's humidity drops to 74%. For more detailed insights, you can check the La Union weather in January.
In comparing December and February weather, we find that both months experience mild temperatures, with December showing a slightly broader range. December's temperatures range from a minimum of 8°C (47°F) to a maximum of 30°C (87°F), averaging around 19°C (66°F). In contrast, February has a minimum of 7°C (45°F) and a similar maximum of 30°C (86°F), with an average of 18°C (65°F). Precipitation is lower in February, with only 9 mm (0.4 in) expected over just one day, compared to December's 16 mm (0.6 in) over two days. Additionally, humidity levels are higher in December at 80%, while February sees a lower humidity of 67%. For more details, you can check out La Union weather in February.
In December, the weather is characterized by milder temperatures, with a minimum of 8°C (47°F) and an average high of 30°C (87°F). The month sees about 16 mm (0.6 in) of precipitation over two days and experiences a higher humidity level of 80%. In contrast, March boasts slightly warmer temperatures, with a minimum of 9°C (49°F) and an average maximum of 32°C (90°F). Precipitation drops to just 5 mm (0.2 in) over a single day, and the humidity decreases to a more comfortable 60%. For a detailed look at the weather in March, check out La Union weather in March.
In December, the weather is characterized by milder temperatures, with a minimum of 8°C (47°F) and an average of 19°C (66°F), peaking at 30°C (87°F). The month sees some precipitation, receiving around 16 mm (0.6 in) over two days, coupled with a high humidity level of 80%. In contrast, April brings warmer weather, featuring a minimum of 13°C (55°F) and an average of 23°C (73°F), reaching a maximum of 34°C (94°F). Notably, April experiences no rainfall, with humidity levels dropping to 51%. For more details on weather patterns in April, you can check La Union weather in April.
In December, temperatures in La Union range from a cool 8°C (47°F) at night to a warm 30°C (87°F) during the day, with an average of 19°C (66°F). This month also experiences some precipitation, with about 16 mm (0.6 in) over 2 days and humidity levels at around 80%. In contrast, May boasts significantly warmer temperatures, with nighttime lows of 16°C (61°F) and daytime highs soaring up to 38°C (100°F), averaging 25°C (78°F). Interestingly, May is notably dry, recording no precipitation and a lower humidity of 47%. The differences in weather between these two months highlight La Union's transition from a wetter, mild December to a hot and arid May. For more specific details on May weather, you can visit La Union weather in May.
In December, the weather is generally cooler with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 30°C (87°F), and an average of 19°C (66°F). The month experiences a relatively low amount of precipitation at 16 mm (0.6 in) over just 2 days, accompanied by a high humidity level of 80%. In contrast, June brings much warmer temperatures, with a minimum of 19°C (66°F) and reaching up to 38°C (100°F), averaging around 29°C (84°F). Precipitation slightly increases to 18 mm (0.7 in), but there are no rainy days, and humidity drops to a more comfortable 50%. For more details on June weather, you can check La Union weather in June.
December and July present contrasting weather patterns. In December, temperatures range from a mild minimum of 8°C (47°F) to a comfortable average of 19°C (66°F), with a maximum of 30°C (87°F). The month experiences relatively low precipitation, measuring just 16 mm (0.6 in) over 2 days, and a higher humidity level of 80%. In stark contrast, July features much warmer conditions, with temperatures soaring from a minimum of 24°C (76°F) to an average of 31°C (88°F) and reaching as high as 38°C (100°F). Precipitation increases to 36 mm (1.4 in) spread over 5 days, coupled with a lower humidity of 70%. For more details on July weather, you can check this link: La Union weather in July.
In December, the weather is pleasantly mild, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 30°C (87°F) and an average of 19°C (66°F). This month sees minimal precipitation, typically only about 16 mm (0.6 in) over just 2 days, coupled with high humidity at 80%. In contrast, August experiences much hotter conditions, with temperatures soaring between 25°C (77°F) and 39°C (102°F), averaging around 31°C (88°F). August is also significantly wetter, receiving approximately 73 mm (2.9 in) of rain across 9 days, and maintains a similar humidity level at 81%. For a more detailed look at August weather, visit La Union weather in August.
In comparing the weather between December and September, December presents a cooler climate with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 30°C (87°F), and an average of 19°C (66°F). In contrast, September showcases much warmer conditions, with temperatures ranging from a minimum of 22°C (72°F) to a scorching maximum of 40°C (104°F), and an average of 30°C (86°F). While December experiences less rainfall, totaling only 16 mm (0.6 in) across just 2 days, September sees significantly higher precipitation at 77 mm (3.0 in) over 10 days. Both months have similar humidity levels, around 80-82%. For more details on September's climate, you can visit La Union weather in September.
In comparing the weather between December and October, there are notable differences in temperature and overall conditions. December tends to be milder, with minimum temperatures around 8°C (47°F) and a maximum reaching 30°C (87°F), while October is typically warmer, featuring a minimum of 14°C (58°F) and highs peaking at a sweltering 39°C (102°F). Precipitation remains similar in both months, with December receiving about 16 mm (0.6 in) and October slightly higher at 20 mm (0.8 in), though both experience rain on only two days. Humidity levels are comparable, with December at 80% and October at 78%. For those interested in more details, check out La Union weather in October.
In December, the weather in La Union is generally milder compared to November. While December boasts a minimum temperature of 8°C (47°F) and an average of 19°C (66°F), November experiences higher temperatures, with a minimum of 13°C (55°F) and an average of 24°C (75°F). The maximum temperatures in November can reach up to 36°C (97°F), significantly warmer than December's peak of 30°C (87°F). Additionally, November sees more precipitation, with 28 mm (1.1 in) over 2 days, compared to December's 16 mm (0.6 in) on the same number of days. Humidity levels remain relatively similar, with December at 80% and November slightly lower at 78%. For further insights into November's weather, check out La Union weather in November.
As December rolls into La Union, the weather presents a delightful transition from the hotter months, offering a much cooler atmosphere with significantly lower temperatures and increased humidity. With averages around 19°C (66°F) and maximum highs reaching 30°C (87°F), this month stands in contrast to the baking summer heat. Additionally, the relatively low precipitation of just 16 mm (0.6 in) spread over only two days makes December a pleasant choice for outdoor enthusiasts. For those seeking to explore how La Union's climate shifts throughout the year, visit La Union Climate for more insights.