Last updated: April 22, 2025
In December, La Union, Mexico experiences a delightful blend of warmth and occasional rainfall, making it a unique destination for visitors. The maximum temperature can soar to a warm 33°C (92°F), while the average temperature hovers around a pleasant 20°C (69°F), offering a comfortable climate for outdoor activities. With a minimum temperature of 7°C (44°F), cool evenings remind travelers to pack light layers. This month sees approximately 18 mm (0.7 in) of precipitation spread over 4 days, contributing to a 91% humidity level that adds a tropical feel to the air. Overall, December is a wonderful time to enjoy the vibrant landscapes and rich culture of La Union.
December in La Union, Mexico, ushers in a noticeable shift in temperatures as the year comes to a close. With a minimum of 7°C (44°F) and a maximum reaching 33°C (92°F), the month presents a pleasant invitation for outdoor activities. The average temperature settles around 20°C (69°F), providing a comfortable balance for both locals and visitors. As the cooler air descends from November’s brisk ranges, December maintains a gentle warmth, perfectly capturing the essence of Mexico's coastal charm. This transitional period signals the start of winter without losing the vibrant, sunny days typical of the region, making it an ideal time for exploration and relaxation.
December in La Union, Mexico, marks a significant decline in precipitation, with only 18 mm (0.7 in) of rain recorded over a meager four days. This tapering off signifies the transition from the heavier rainfall experienced during the peak months of June to October, where monthly totals often exceeded 190 mm (7.5 in). The shift to drier conditions is welcomed by locals and tourists alike, creating a pleasant atmosphere for outdoor activities. Furthermore, compared to the 63 mm (2.5 in) seen in November, December’s precipitation is notably sparse, aligning with the broader trend of reduced rainfall as the year closes, emphasizing the region's shift towards a more arid climate as it heads into winter.
In December, La Union, Mexico experiences a humidity level of 91%, which is consistent with the high humidity characterizing the latter part of the year. This month sees slightly lower humidity than October and November, when levels peak at 92% and 91% respectively, just before the onset of the drier winter months. The transition from higher humidity in summer—with July and August dropping to 72% and 74%—towards the winter months marks a significant pattern. Generally, while December maintains a high humidity level, it serves as a reminder of the shift towards a more comfortable, albeit still humid, climate as the year concludes.
As December rolls into La Union, Mexico, residents and visitors can expect a UV Index of 7, categorizing the exposure as high. This marks a noticeable dip from the extreme UV levels experienced throughout the summer months, where indices peaked at 13 in June and July. The burn time, at 25 minutes, offers a slight reprieve, allowing for a longer duration outdoors without the immediate risk of sunburn compared to the intense days of high summer. Interestingly, December ties with January for the lowest index of the year, emphasizing a seasonal trend where UV levels steadily decline toward year’s end. To better prepare for your sun exposure and enjoy the beautiful coastal vibes, check out the detailed information here: La Union UV Index.
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In La Union, Mexico, December shines with an impressive 231 hours of sunlight, continuing the trend of abundant sunshine as the year wraps up. While this month experiences slightly less sunlight compared to the vibrant summer months of July and August, which boast over 320 hours, it still outshines the winter months that precede it, such as November with 240 hours. The gradual decline in daylight from the peak of May at 314 hours reveals a typical seasonal shift, yet December maintains a warm glow that draws visitors eager to soak in the last rays of the year. As the daylight fades, the lingering warmth of the Mexican sun offers a perfect backdrop for holiday festivities and coastal relaxation, making it a compelling time to explore this enchanting destination.
As December approaches in La Union, Mexico, the likelihood of sunny weather begins to peak, reaching 49%—the highest since March. This increase marks a significant rebound from the earlier months of the year, where the chance of sun fluctuated more dramatically, dipping as low as 15% in June. Following a relatively promising November at 45%, December offers a delightful opportunity for outdoor activities, as residents and visitors alike can embrace the warmth of the sun before the year's end. This trend hints at a promising close to the year, encouraging everyone to make the most of their time in this vibrant coastal paradise.
In La Union, Mexico, the daylight duration experiences a clear seasonal pattern throughout the year. December marks a transitional phase, as daylight dips to 10 hours, signaling the approach of winter. This reduction follows a peak in the summer months, where daylight stretches to an impressive 13 hours in May, June, and July. As the year progresses towards fall, daylight gradually wanes, with August and September offering slightly shorter days of 12 hours. By October and November, the pattern continues, with both months retaining 11 hours of daylight. This cyclical rhythm provides residents and visitors alike the opportunity to enjoy a blend of vibrant sunny days during summer and a cozy atmosphere as the year closes.
As December rolls in, La Union, Mexico experiences a gentle transition in its breezy climate, with an average wind speed of 1.8 m/s (4 mph). This slight dip marks the cooler end of the year, following a gradual increase from the calmer winds of January through April, which peak at 2.4 m/s (5 mph) in April. Interestingly, the winds tend to mellow during the summer months, reaching their lowest average in September at 1.7 m/s (4 mph). As the year concludes, December’s winds invite a serene ambiance, hinting at a time of reflection and tranquility before the new year arrives, ensuring this coastal town remains an appealing destination for those seeking a peaceful getaway.
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.
In December, the weather remains relatively warm with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), averaging around 20°C (69°F). The humidity is high at 91%, and there’s a modest amount of precipitation, totaling 18 mm (0.7 in) across approximately 4 days. In contrast, January experiences slightly cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 34°C (94°F), averaging 19°C (67°F). However, January is wetter, receiving 49 mm (1.9 in) of rainfall over about 7 days, while humidity remains relatively stable at 88%. For a detailed look at the climate specifics, check out La Union weather in January.
In December, the weather in La Union features a milder range of temperatures, with a minimum of 7°C (44°F) and a maximum of 33°C (92°F), resulting in an average temperature of 20°C (69°F). The month is relatively dry, experiencing only 18 mm (0.7 in) of precipitation over about 4 days, accompanied by high humidity at 91%.
In contrast, February shows a slight increase in minimum and maximum temperatures, reaching lows of 8°C (46°F) and highs of 35°C (95°F), with an average of 21°C (70°F). Precipitation is higher in February, totaling 27 mm (1.1 in) and occurring over 7 days, while humidity decreases slightly to 86%. For more detailed insights on February weather, check out La Union weather in February.
In December, the weather is relatively mild with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), accompanied by high humidity levels at 91%. The month sees minimal rainfall, totaling only 18 mm (0.7 in) over about 4 days. In contrast, March experiences slightly warmer conditions, with temperatures starting at 10°C (51°F) and peaking at 38°C (101°F), along with a higher average of 23°C (74°F). Precipitation also increases to 40 mm (1.6 in) over approximately 8 days, albeit with lower humidity at 83%. For more specific details about the weather in March, you can check La Union weather in March.
In December, temperatures in La Union typically range from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), with an average of 20°C (69°F). The month sees relatively low precipitation, totaling just 18 mm (0.7 in) across 4 days, and maintains a high humidity level of 91%. In contrast, April experiences warmer weather, with minimum temperatures of 15°C (58°F) and maximums reaching up to 41°C (107°F), averaging at 26°C (79°F). However, it also sees increased rainfall, accumulating 63 mm (2.5 in) over 8 days, but with slightly lower humidity at 80%. For more detailed information, visit La Union weather in April.
When comparing December and May weather, there are notable differences in temperature and precipitation. December experiences milder conditions with minimum temperatures around 7°C (44°F) and averages peaking at 20°C (69°F), while May sees a significant rise, with minimums of 19°C (66°F) and average temperatures reaching 28°C (83°F). Additionally, May is much wetter, receiving 138 mm (5.5 in) of rain over 14 days compared to December's 18 mm (0.7 in) over just 4 days. Despite the higher humidity in December at 91%, May maintains a comfortable level at 82%. For more detailed insights into May's weather, visit La Union weather in May.
In December, the weather is relatively mild with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), and it experiences about 18 mm (0.7 in) of precipitation over four days. The humidity is quite high at 91%, contributing to a somewhat sticky atmosphere. In contrast, June brings significantly warmer temperatures, with lows of 20°C (69°F) and highs soaring up to 38°C (101°F). This month has a much higher precipitation level, averaging 200 mm (7.9 in) over 21 days, and the humidity sits at a lower 79%. For more insights on the weather during June, you can visit La Union weather in June.
When comparing the weather in December and July, significant differences emerge. December boasts milder temperatures, with a minimum of 7°C (44°F) and a maximum of 33°C (92°F), resulting in an average of 20°C (69°F). This month also experiences relatively low precipitation, with only 18 mm (0.7 in) recorded over 4 days, despite high humidity levels at 91%. In contrast, July is much warmer, featuring a minimum of 21°C (69°F) and soaring to a maximum of 37°C (98°F), with an average temperature of 28°C (83°F). This month is marked by significantly higher rainfall, accumulating 123 mm (4.8 in) over 20 days, and lower humidity at 72%. For more insights on the weather specifics during July, you can visit La Union weather in July.
In December, the weather features a much milder range of temperatures, with a minimum of 7°C (44°F) and a maximum reaching 33°C (92°F). This month experiences relatively low precipitation at 18 mm (0.7 in) over just 4 days, along with high humidity at 91%. In contrast, August is significantly hotter, with a minimum temperature of 21°C (71°F) and highs that can soar up to 39°C (103°F). The month is also wetter, receiving 152 mm (6.0 in) of rain spread across 20 days, while maintaining a lower humidity level of 74%. For more detailed insights into August weather, visit La Union weather in August.
In comparing the weather of December and September, it’s clear that September experiences significantly higher temperatures, with a minimum of 18°C (64°F) and a maximum of 37°C (100°F), averaging around 27°C (82°F). This contrasts with December, where temperatures are milder, ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), with an average of 20°C (69°F). Additionally, September is much wetter, receiving 189 mm (7.4 in) of precipitation over about 20 days, while December has only 18 mm (0.7 in) of rain over 4 days. Humidity levels are also higher in December at 91%, compared to September's 84%. For more details, you can refer to La Union weather in September.
In December, the weather typically presents milder temperatures, ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), with an average of 20°C (69°F) and only 18 mm (0.7 in) of precipitation over four days. In contrast, October experiences warmer conditions, with temperatures varying from a minimum of 15°C (60°F) to a high of 37°C (99°F), an average of 25°C (78°F), and significantly more rainfall at 196 mm (7.7 in) across 17 days. Both months have high humidity levels, with December at 91% and October slightly higher at 92%. For a more detailed look at October weather, you can visit La Union weather in October.
In December, the weather shows a slight increase in minimum temperatures compared to November, with lows of 7°C (44°F) versus November's 4°C (39°F). The average temperature in December is also a bit cooler at 20°C (69°F) compared to November's 22°C (72°F). While December has a maximum temperature similar to November, peaking at 33°C (92°F) against November's 32°C (90°F), it sees significantly less rainfall, with only 18 mm (0.7 in) over 4 days, compared to November's 63 mm (2.5 in) over 9 days. Both months share a consistent humidity level of 91%. For more detailed insights, you can visit La Union weather in November.
In December, La Union experiences a refreshing shift in weather compared to other months, marked by a pleasant average temperature of 20°C amid lower humidity levels and only a few days of rain. While daytime highs can reach a warm 33°C, the nights bring a comforting coolness that dips to around 7°C. This delightful mix offers a respite from the heat of the preceding months, making it an ideal time to explore the region's beauty. For a more detailed understanding of the climate throughout the year, visit La Union Climate.