December Weather in Lujan de Cuyo, Argentina

Last updated: August 21, 2025

In Lujan de Cuyo, Argentina, December welcomes summer with maximum temperatures soaring to 32°C (90°F) and an average of 18°C (65°F), providing a warm and inviting climate. Nights can dip to a refreshing 6°C (43°F), offering a pleasant respite from the daily heat. This month also sees precipitation totaling 133 mm (5.2 in) over the span of 19 days, contributing to lush landscapes that thrive in the summer sun. With humidity levels around 35%, the air remains relatively dry, making it an ideal time for outdoor activities amid the vibrant vineyards of this picturesque region.

December Temperature in Lujan de Cuyo

As December rolls into Lujan de Cuyo, Argentina, the weather takes on a delightful warmth, with temperatures gradually rising from the cooler months. The month showcases a minimum temperature of 6°C (43°F), ensuring brisk mornings, while daytime averages reach a comfortable 18°C (65°F). With a peak of 32°C (90°F), December marks a shift into the summer season, perfectly suited for outdoor activities and vineyard visits. Compared to the preceding months, temperatures show a warming trend, making it an ideal time to enjoy the region's renowned wines under the radiant sun. The rise in warmth invites both locals and tourists to bask in the vibrant atmosphere, celebrating the beauty of Mendoza's summer.

December Weather in Lujan de Cuyo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Lujan de Cuyo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lujan de Cuyo, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec676460554640394449546165
Data source: Temperature data for Lujan de Cuyo generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Lujan de Cuyo

In Luján de Cuyo, Argentina, December brings a significant uptick in precipitation, with 133 mm (5.2 in) of rainfall falling over an average of 19 days. As the year draws to a close, this pattern reflects a continuation of high levels of moisture, following November's substantial 127 mm (5.0 in). The month stands out, as it is one of the wetter periods, especially when compared to the drier winter months of June and July, which see only 27 mm (1.1 in) and 23 mm (0.9 in), respectively. This notable increase in precipitation not only signifies the transition into summer but also contributes to the lush, vibrant landscapes that characterize the region during the festive season. With nearly every day experiencing some rainfall, December is marked by an atmosphere both refreshing and invigorating, making it a vital time for local agriculture and nature alike.

December Precipitation Trends in Lujan de Cuyo

The chart displays monthly precipitation patterns in Lujan de Cuyo, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Lujan de Cuyo, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1281599990562723233367127133
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lujan de Cuyo

In Lujan de Cuyo, Argentina, December marks a notable dip in humidity, averaging only 35%, making it the driest month of the year. Following a gradual upward trend from the start of the year, where humidity levels begin around 40% in January, the months progressively become more humid, peaking at 69% in May. This increase corresponds with the growing warmth of the coming summer. However, as the year winds down, there's a consistent decrease in moisture levels, plunging to December's low. This seasonal pattern highlights the region's shift from the lushness of late spring to the arid conditions of early summer, providing a unique backdrop for the vibrant landscape and wine-producing activities that Lujan de Cuyo is famous for.

December Average Humidity in Lujan de Cuyo

This chart illustrates the average monthly humidity levels in Lujan de Cuyo, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Lujan de Cuyo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%46%54%65%69%64%65%60%51%49%44%36%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lujan de Cuyo

In December, Lujan de Cuyo experiences a notably high UV Index of 16, placing it firmly in the extreme exposure category, with a burn time of just 10 minutes. This robust increase follows a trend seen throughout the spring and summer months, where the UV Index consistently ranks among the highest. For instance, January and February both recorded peak values of 17 and 15, respectively, while even the preceding month of November reached 15. This indicates that sun protection is crucial during the latter part of the year, as the region experiences heightened ultraviolet exposure. With this level of intensity, understanding the UV Index is essential for outdoor enthusiasts and locals alike—stay protected under the sun! For more details, visit Lujan de Cuyo UV Index.

Maximum UV Index Levels in Lujan de Cuyo for December

The chart shows the monthly maximum UV Index (UVI) for Lujan de Cuyo in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Lujan de Cuyo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1715139656710131516
Data source: Lujan de Cuyo December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Lujan de Cuyo

In Lujan de Cuyo, Argentina, December shines brightly, with an impressive 412 hours of sunshine that encapsulate the essence of summer. This month stands out within a year marked by fluctuating daylight, as it not only boasts the highest sunshine hours but also represents a significant increase compared to the preceding months. While sunshine hours gradually climb from 289 in May to a peak in December, the trend reveals a vibrant crescendo of warmth, especially evident as autumn gives way to summer. The transition from November's 384 hours to December’s glow illustrates the region’s perfect climate for enjoying the lush vineyards and scenic landscapes, inviting visitors to savor the warmth of the season.

Monthly Sunshine Duration in Lujan de Cuyo: December Highlighted

The December sunshine duration represents the total number of hours Lujan de Cuyo experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec323h347h359h309h289h272h285h316h333h371h384h412h
Data source: Lujan de Cuyo December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lujan de Cuyo During December

In Luján de Cuyo, December brings a 56% chance of sunny weather, marking a slight dip compared to the preceding months. This decline is part of a broader trend, as the region typically enjoys its highest likelihood of sunshine during the winter months, particularly in July with an impressive 83% clarity. As spring months like November bask in a 72% sunlight frequency, the summer’s arrival in December signifies a transitional period. Despite December's dip, it remains sunnier than many autumn months, such as March and April, hinting at a festive atmosphere as the year winds down. Embrace the warmth while it lasts, as the sunny days in Luján de Cuyo are a cherished highlight of the approaching summer.

Percentage of Sunny Days in December in Lujan de Cuyo

The chart illustrates the percentage of sunny days in Lujan de Cuyo throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Lujan de Cuyo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec62%54%53%63%58%62%83%73%79%73%72%56%
Data source: Lujan de Cuyo December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lujan de Cuyo in December

In Lujan de Cuyo, Argentina, December marks a vibrant return to longer days, with daylight extending to an enticing 14 hours. This trend signals the peak of summer in the Southern Hemisphere, following a gradual increase from 10 hours in May to 12 hours by October. Each month, the diminishing daylight hours from September through November create a slow transition, as the sun begins to rise earlier and set later, culminating in the sun-drenched days of December. This rhythmic fluctuation highlights the region's distinct seasonal shifts, inviting locals and visitors alike to bask in the warmth and beauty of the summer solstice.

Average Daylight Hours in Lujan de Cuyo for December

The chart illustrates the variation in daylight duration in Lujan de Cuyo throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 1m13h 14m12h 14m11h 13m10h 23m9h 59m10h 12m10h 56m11h 54m12h 55m13h 49m14h 16m
Data source: Lujan de Cuyo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Lujan de Cuyo

As December unfolds in Lujan de Cuyo, Argentina, the winds begin to whisper a familiar tune, maintaining an average speed of 2.2 m/s (5 mph), reminiscent of the brisk conditions experienced in early autumn. This gentle breeze is part of a subtle trend in wind patterns, with speeds slightly peaking in October and November. Interestingly, December's winds are a continuation of this mild increase, offering a refreshing contrast to the waning warmth of the season. As the year draws to a close, the winds of Lujan de Cuyo provide a soothing complement to the vibrant landscapes, inviting locals and visitors alike to embrace the charm of this picturesque region.

Average December Wind Speed in Lujan de Cuyo

The chart displays monthly wind speed patterns in Lujan de Cuyo, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.21.91.91.71.61.61.62.02.22.32.32.2 m/s
Data source: Lujan de Cuyo December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Lujan de Cuyo Compares to Other Months

Weather in Lujan de Cuyo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lujan de Cuyo, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, the weather features a minimum temperature of 6°C (43°F) and an average of 18°C (65°F), peaking at 32°C (90°F). This month experiences substantial precipitation, totaling 133 mm (5.2 in) over 19 days, with humidity levels at 35%. In comparison, January sees slightly cooler minimum temperatures at 5°C (41°F), with a marginally higher average of 20°C (68°F) and similar maximum temperatures of 32°C (89°F). Precipitation decreases slightly to 128 mm (5.0 in) across 16 days, while humidity rises to 40%. Overall, January maintains a similar temperature profile to December but tends to be drier and more humid. For more details, check out the Lujan de Cuyo weather in January.

In December, the weather features a minimum temperature of 6°C (43°F) and averages around 18°C (65°F), peaking at a maximum of 32°C (90°F). This month sees moderate rainfall, with about 133 mm (5.2 in) over 19 days and a humidity level of 35%. Conversely, February presents a slightly warmer scenario with similar minimum temperatures (6°C or 44°F) and a comparable average of 18°C (64°F). However, the maximum temperature dips slightly to 31°C (88°F) while precipitation increases to 159 mm (6.2 in) across 20 days, accompanied by higher humidity at 46%. For more details on February weather, check out Lujan de Cuyo weather in February.

In December, the weather is typically warmer, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (90°F) and an average of 18°C (65°F). The month experiences considerable precipitation of 133 mm (5.2 in) over 19 days, leading to a lower humidity level of 35%. In contrast, March sees cooler temperatures, with a minimum of 2°C (35°F), an average of 16°C (61°F), and a maximum of 29°C (85°F). There is less rainfall in March, with a total of 99 mm (3.9 in) over 16 days, and the humidity is noticeably higher at 54%. For more detailed insights, visit Lujan de Cuyo weather in March.

December and April exhibit distinct weather differences. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F). This month experiences significant rainfall, with 133 mm (5.2 in) recorded over 19 days, coupled with lower humidity of 35%. In contrast, April has cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 26°C (79°F), averaging 13°C (55°F). Precipitation is also lower in April, totaling 90 mm (3.5 in) over 13 days, and humidity levels rise to 65%. For a deeper insight into the weather during this month, you can check Lujan de Cuyo weather in April.

December and May exhibit contrasting weather patterns. In December, temperatures range from a cool 6°C (43°F) at night to a warm 32°C (90°F) during the day, with an average of 18°C (65°F). This month also sees higher precipitation, with about 133 mm (5.2 in) falling over 19 days, contributing to a relatively low humidity of 35%. In contrast, May experiences much cooler temperatures, with nighttime lows plummeting to -6°C (22°F) and daytime highs reaching only 22°C (72°F), averaging around 8°C (47°F). The precipitation in May is significantly lower at 56 mm (2.2 in), spread over just 9 days, but the humidity is notably higher at 69%. For more details, check out Lujan de Cuyo weather in May.

In December, the weather in Lujan de Cuyo is significantly warmer, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), and a comfortable average of 18°C (65°F). Despite the warmth, December sees substantial precipitation of 133 mm (5.2 in) over 19 days, combined with relatively low humidity at 35%. In contrast, June experiences much cooler conditions, with temperatures ranging from a chilly -10°C (14°F) to a comfortable 19°C (67°F) and an average of just 4°C (40°F). June is much drier, with only 27 mm (1.1 in) of precipitation over 5 days, but the humidity is higher at 64%. For a more detailed look at June weather, visit Lujan de Cuyo weather in June.

December and July present stark contrasts in weather, creating distinctly different climates. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F). The month experiences significant rainfall, accumulating 133 mm (5.2 in) over 19 days, and the humidity is relatively low at 35%. Conversely, July is much chillier, with temperatures fluctuating between -10°C (14°F) and a maximum of 19°C (67°F), leading to an average temperature of just 4°C (39°F). Rainfall is minimal in July, totaling only 23 mm (0.9 in) over 5 days, but the humidity is higher at 65%. For a detailed look at July’s weather specifics, check out Lujan de Cuyo weather in July.

December and August present contrasting weather conditions. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with a pleasant average of 18°C (65°F). The month experiences significant rainfall, totaling 133 mm (5.2 in) over 19 days, and has a relatively low humidity of 35%. In stark contrast, August sees much cooler temperatures, with highs reaching only 24°C (76°F) and lows dropping to -4°C (24°F). Precipitation is minimal in August, with just 23 mm (0.9 in) over 6 days and higher humidity levels at 60%. For more details on August weather specifics, you can check Lujan de Cuyo weather in August.

In comparing the weather of December and September, it's clear that December tends to be much warmer and more humid. December has average temperatures ranging from a low of 6°C (43°F) to a high of 32°C (90°F), whereas September’s temperatures are significantly cooler, with a minimum of -5°C (24°F) and a maximum of 26°C (80°F). Additionally, December experiences more precipitation, with 133 mm (5.2 in) spread over 19 days, compared to September’s 33 mm (1.3 in) over just 6 days. The humidity also differs, standing at 35% in December compared to a higher 51% in September. For a more detailed look at September weather patterns, you can visit this link: Lujan de Cuyo weather in September.

Comparing the weather in December and October reveals significant differences in temperature, precipitation, and humidity. In December, the temperature ranges from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F), making it considerably warmer than October, where temperatures drop to a minimum of -3°C (27°F) and peak at 29°C (84°F), averaging 12°C (55°F). Additionally, December experiences much higher precipitation, totaling 133 mm (5.2 in) over 19 days, compared to October's 67 mm (2.6 in) over 13 days. Humidity levels also differ, with December at 35%, which is notably lower than October’s 49%. For more detailed information about weather during this month, you can check out Lujan de Cuyo weather in October.

In comparing the weather of December and November, December typically experiences slightly warmer temperatures, with average highs reaching 32°C (90°F) compared to November's 31°C (88°F). The minimum temperatures also rise, averaging 6°C (43°F) in December versus 3°C (38°F) in November. Additionally, December sees a marginally higher precipitation amount of 133 mm (5.2 in) over 19 days, while November has 127 mm (5.0 in) of rain over 17 days. However, November has a higher humidity level at 44%, compared to December's lower humidity at 35%. For more information on November weather specifically, visit Lujan de Cuyo weather in November.

Compare Lujan de Cuyo's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Lujan de Cuyo

As December rolls into Lujan de Cuyo, the weather showcases a distinct change from the cooler months, characterized by a warm embrace as temperatures peak at a delightful 32°C (90°F). This month marks a shift to a balmy atmosphere with lower humidity levels, leading to a refreshing feel amid the lush landscapes. However, expect a fair share of rain, with precipitation occurring on about 19 days, contributing to a total of 133 mm (5.2 in). These mild, yet vibrant conditions set the stage for the region's blossoming beauty, making December a captivating time to explore. For a deeper dive into what the weather has to offer throughout the year, visit Lujan de Cuyo Climate.