Last updated: August 21, 2025
During December, La Union, Colombia experiences a tropical climate characterized by mild temperatures and significant rainfall. The maximum temperature reaches a comfortable 29°C (84°F), while the average hovers around 22°C (72°F), and the minimum dips to 16°C (62°F). This month is marked by heavy precipitation, totaling 349 mm (13.8 in) across 29 rainy days, resulting in a humidity level of approximately 83%. Visitors can expect a lush, vibrant landscape as the region's abundant moisture nourishes its natural beauty.
In December, La Union, Colombia experiences a mild and pleasant climate, with temperatures that reflect the region's consistency throughout the year. The month showcases a minimum temperature of 16°C (62°F), an average of 22°C (72°F), and a gentle maximum of 29°C (84°F). As the year winds down, it's noticeable that while the maximum temperature dips slightly, the overall warmth remains inviting. This moderate shift hints at the arrival of a serene seasonal transition, where visitors can enjoy pleasantly cool evenings and warm days perfect for outdoor activities. Overall, December captures the essence of La Union's tropical charm, providing a comfortable backdrop for its vibrant culture and natural beauty.
In December, La Union, Colombia, experiences a significant shift in precipitation patterns as the year winds down, recording 349 mm (13.8 in) of rainfall over 29 days. This represents a notable decrease compared to the notably wetter months of May and April, where precipitation peaks at 687 mm (27.1 in) and 569 mm (22.4 in), respectively. Despite the reduction, December maintains a rain-soaked ambiance, contributing to the region's lush landscapes and rich biodiversity. As the festive season approaches, the consistent rainfall serves to rejuvenate the environment, making it a vibrant time for both residents and nature enthusiasts alike.
In La Union, Colombia, December marks a slight dip in humidity, with levels at 83%. Throughout the year, humidity tends to peak in the rainy months of May, June, and November, where it reaches an average of a robust 87%. As the year progresses from January's 78%, there is a gradual rise, reflecting the wet season's influence, culminating in the highest figures between April and June. Interestingly, as the year comes to a close, humidity remains relatively high yet stable, compared to the soaring numbers earlier in the year. This consistency in moisture levels offers a vibrant atmosphere, making December in La Union a refreshing pause before the humidity starts to settle down in the subsequent months.
In La Union, Colombia, the UV Index remains persistently high throughout the year, indicating extreme levels of solar radiation that necessitate diligent sun protection. Notably, from January to April, the index peaks at a staggering 17 in April, showcasing a trend of increasing UV exposure that gradually tapers off to 12 by December. This gradual decline in December, while still categorized as extreme, suggests a slight easing from the year’s peak, with a burn time sustained at just 10 minutes across all months. Such consistent intensity serves as a reminder for locals and visitors alike to stay vigilant against sunburn and skin damage. For detailed insights and monthly updates, explore the La Union UV Index.
UV Risk Categories
In December, La Union, Colombia, welcomes 254 hours of sunshine, contributing to a remarkable year of radiance. An analysis of the monthly sunlight reveals a striking trend: as the year progresses, sunny days generally increase, peaking in August with an impressive 290 hours. This gradual climb from January through mid-year showcases La Union's allure as a sunlit paradise, while the slight dip in November — only 216 hours — hints at the lush, refreshing changes accompanying the seasonal transition. By December, as holiday festivities unfold, the sun reasserts its presence, ensuring the month remains vibrant and inviting for locals and tourists alike.
In La Union, Colombia, December marks a transitional moment in weather patterns, showing a 9% chance of sunny days. As the year winds down, the likelihood of sun remains relatively stable, mirroring the patterns of the preceding months, particularly November's 9%. This slight consistency suggests that while the sun may make a rare appearance, residents and visitors can expect a predominantly overcast December. Compared to early months like January and February, which see a higher chance of sunshine, December offers a milder dose of sunshine, hinting at the rainy season that lies ahead. Embrace the cozy atmosphere, knowing that sunny moments are just a chance encounter away!
In La Union, Colombia, the December daylight duration is consistent with the preceding and following months, offering approximately 11 hours of sunlight. This trend reflects a slight ebb in daylight as the year draws to a close. Interestingly, the daylight duration gradually increases from 11 hours in January and February, reaching a peak of 12 hours between March and October. Following this period of extended daylight, November sees a decrease back to 11 hours, paving the way for the same brief period in December. This cyclical pattern emphasizes Colombia's relatively stable daylight hours, with subtle shifts that mark the transition between seasons, allowing residents and visitors to enjoy a harmonious balance of light throughout the year.
As December unfolds in La Union, Colombia, the gentle caress of the breeze sets a serene backdrop, with average wind speeds dipping to 0.9 m/s (2 mph), mirroring the calmness that characterizes the month. This slight decline follows a steady pattern observed since the onset of the wetter season, where winds remained consistently low throughout the year, hovering mostly around 1.0 - 1.1 m/s. Interestingly, the year experienced a minor uptick in breeze activity during the summer months of July and August, reaching 1.1 m/s, but as the final month of the year arrives, the winds quiet down once again. This trend showcases La Union's tranquil climate, making it a perfect sanctuary for those seeking peace amidst the vibrant landscapes of Colombia.
Weather in La Union varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in La Union, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in La Union range from a minimum of 16°C (62°F) to a maximum of 29°C (84°F), with an average of 22°C (72°F). The month is characterized by heavy rainfall, accumulating 349 mm (13.8 in) over 29 days, and a high humidity level of 83%. In contrast, January sees slightly cooler minimum temperatures of 14°C (57°F) and a maximum of 30°C (87°F), while maintaining the same average of 22°C (72°F). Precipitation decreases to 267 mm (10.5 in) over 24 days, and humidity drops to 78%. For more detailed information on the weather in January, visit La Union weather in January.
In December, the weather features a minimum temperature of 16°C (62°F) and an average of 22°C (72°F), peaking at a comfortable 29°C (84°F). However, this month also brings significant rainfall, with 349 mm (13.8 in) of precipitation over 29 days and high humidity at 83%. In contrast, February offers slightly cooler conditions with a minimum temperature of 14°C (57°F) while maintaining the same average of 22°C (72°F) and reaching a maximum of 30°C (86°F). Additionally, February sees reduced rainfall, with 323 mm (12.7 in) falling over 24 days and humidity dropping to 77%. For more detailed insights on February weather, you can visit La Union weather in February.
In December, temperatures in La Union range from a minimum of 16°C (62°F) to a maximum of 29°C (84°F), with an average of 22°C (72°F). The month is characterized by high humidity at 83%, and significant precipitation, totaling 349 mm (13.8 in) over 29 days. In contrast, March experiences slightly cooler minimum temperatures at 14°C (57°F) but a comparable maximum of 30°C (86°F), maintaining the average at 22°C (71°F). March sees even more rainfall, with 452 mm (17.8 in) also spread across 29 days, though humidity remains a bit lower at 80%. For more details on the weather in March, you can visit La Union weather in March.
When comparing the weather in December and April, both months exhibit similar average temperatures, with December averaging 22°C (72°F) and April also at 22°C (72°F). However, April tends to be slightly warmer, with a maximum temperature of 30°C (86°F) compared to December's 29°C (84°F). Notably, April experiences significantly higher precipitation, with 569 mm (22.4 in) compared to December's 349 mm (13.8 in), and both months have rainfall on approximately 29 days. Additionally, humidity remains constant at 83% in both months. For more detailed insights, you can check La Union weather in April.
December and May both feature similar temperature ranges, with minimums at 16°C (62°F), average highs around 22°C (72°F), and maximums peaking at 29°C (84-85°F). However, the precipitation patterns vary significantly between the two months. In December, rainfall totals approximately 349 mm (13.8 in) over 29 days, resulting in a humidity level of 83%. In contrast, May sees a substantial increase in precipitation, totaling 687 mm (27.1 in) over 31 days, with humidity rising slightly to 87%. This suggests a wetter and potentially more humid experience in May compared to December. For a detailed look at the weather conditions, check out La Union weather in May.
When comparing the weather in December and June, both months showcase similar temperature ranges, with minimums around 16°C (61-62°F), averages of 22°C (72°F), and maximums peaking at 29°C (84-85°F). However, June tends to be wetter, experiencing higher precipitation levels at 526 mm (20.7 in) over 30 days compared to December's 349 mm (13.8 in) over 29 days. Additionally, June has slightly higher humidity, averaging at 87%, while December sits at 83%. These factors contribute to a more humid and potentially rainier atmosphere in June, which can affect outdoor activities. For a detailed look at June weather specifically, visit La Union weather in June.
In comparing the weather of December and July, we observe that both months share similar temperature ranges, with minimums around 16°C (62°F), averages at 22°C (72°F), and maximums reaching up to 29°C (84°F in December and 85°F in July). However, July experiences significantly higher rainfall, with a total of 496 mm (19.5 in) compared to December's 349 mm (13.8 in), despite both months having approximately 29 rainy days. Humidity levels are also slightly higher in July, at 85%, compared to December's 83%. This makes July a wetter and marginally more humid month in contrast to December. For more details, you can check La Union weather in July.
When comparing the weather in December and August, we notice some similarities and subtle differences. Both months have a similar average temperature of 22°C (72°F), but August tends to have slightly warmer highs, reaching a maximum of 30°C (86°F) compared to December's 29°C (84°F). December experiences higher precipitation, with a total of 349 mm (13.8 in) over 29 days, while August sees even more rain at 400 mm (15.7 in), also spread across 29 days. Additionally, humidity levels are slightly higher in December at 83%, while in August, it sits around 80%. For a more detailed look at weather patterns, you can check out La Union weather in August.
When comparing the weather in December and September, both months exhibit relatively warm temperatures, with December having a minimum of 16°C (62°F) and an average of 22°C (72°F), akin to September's minimum of 15°C (60°F) and average of 22°C (72°F). However, September tends to be slightly warmer during the daytime, reaching a maximum of 31°C (88°F), compared to December's peak of 29°C (84°F). In terms of precipitation, September experiences more rain, with 395 mm (15.6 in) spread over 28 days, while December sees 349 mm (13.8 in) over 29 days. Humidity levels are also comparable, with December at 83% and September at 80%. For more specific details on September weather, you can refer to La Union weather in September.
In comparing the weather of December and October, both months share similar minimum temperatures at 16°C (62°F) and average temperatures around 22°C (71°F to 72°F). However, October tends to be slightly warmer with a maximum temperature of 30°C (86°F), compared to December’s 29°C (84°F). Precipitation levels also differ significantly; while December receives 349 mm (13.8 in) over 29 days, October has a higher total of 513 mm (20.2 in) across 30 days, making October a wetter month. Humidity levels are almost equal, with December at 83% and October at 85%, indicating consistently high moisture in the air during both months. For more detailed insights into October weather patterns, you can explore La Union weather in October.
In comparing the weather of December and November, both months experience warm temperatures, but December sees a slight decrease in minimum temperatures, dropping to 16°C (62°F) compared to November's 17°C (62°F). The average temperature remains quite similar, with December at 22°C (72°F) and November at 22°C (71°F). However, December receives significantly less rainfall, totaling 349 mm (13.8 in) over 29 days, while November is wetter with 474 mm (18.6 in) also spread across 29 days. Humidity is slightly lower in December at 83% compared to November's 87%, making December feel a bit more comfortable overall. For more detailed weather insights specific to November, you can visit La Union weather in November.
December in La Union is characterized by a notable shift in weather compared to other months, as the region experiences higher humidity levels and increased precipitation. With nearly every day marked by showers, the lush surroundings come alive, creating a vibrant landscape. Average temperatures remain comforting, teetering between a warm maximum of 29°C and a cooler minimum of 16°C. This month exemplifies the transition to the wet season, making it distinct from the dryer months that precede it. For more insights into weather patterns, check out La Union Climate.