Last updated: August 21, 2025
December in San Carlos de Bariloche, Argentina, showcases a captivating blend of nature’s elements. Temperatures range from a pleasant maximum of 28°C (83°F) to a cooler average of 11°C (53°F), dipping to a brisk minimum of -1°C (30°F). This month sees 43 mm (1.7 in) of precipitation over 6 days, contributing to the region's lush landscapes. With an average humidity of 73%, the air carries a refreshing crispness, making it an ideal time for outdoor adventures amid breathtaking alpine scenery. Visitors can revel in the beauty of this stunning locale, where the charm of summer meets the tranquility of the mountains.
In San Carlos de Bariloche, Argentina, December marks a transition to warmer summer temperatures, showcasing a delightful range of -1°C (30°F) as the minimum, an average of 11°C (53°F), and a peak of 28°C (83°F). As festive cheer fills the air, visitors can expect a significant rise from the frosty months that precede it. This upward trend continues into the later summer months, with January and February offering even warmer conditions. Overall, December’s mild climate invites outdoor adventures, making it an ideal time for tourists to explore the stunning landscapes of the Andes while enjoying the invigorating summer sun.
In December, San Carlos de Bariloche experiences a moderate level of rainfall, with 43 mm (1.7 in) of precipitation over 6 days. This marks a decrease from the wetter months that precede it, particularly May and June, which see significantly higher totals of 101 mm (4.0 in) and 173 mm (6.8 in), respectively. As the year winds down, December's precipitation typically indicates the shift towards summer in Patagonia, providing a refreshing contrast to the heavier rains of the winter months. This transitional period features a relatively mild climate, appealing to visitors and locals alike who appreciate the scenic beauty of the region without the dampness of earlier months.
In December, San Carlos de Bariloche experiences a humidity level of 73%, which marks a slight increase from the preceding months. This uptick reflects a broader trend as the year progresses into the warmer seasons. Interestingly, the region's humidity begins to rise significantly from late autumn, peaking around winter months in July and August at a consistent 90%. As spring approaches in September and October, humidity starts to decline, but December suggests a return to moderately high levels, hinting at a transition into hotter, more humid summer months. The overall pattern shows a notable seasonal fluctuation, underscoring the influence of Bariloche's stunning natural environment on its weather conditions.
As December rolls into San Carlos de Bariloche, the UV Index reaches a remarkable 14, categorizing it as extreme and resulting in a rapid burn time of only 10 minutes. This peak in UV intensity marks a striking contrast to the cooler months, where values dipped as low as 3 in June and July. With January and February previously boasting a UV Index of 15 and 13 respectively, December sits at just a notch below, highlighting a consistent trend of high UV exposure during the southern summer months. As autumn approaches, the UV Index gradually declines, providing a reminder for residents and visitors alike to remain vigilant in protecting their skin during these intense periods. To learn more about the UV trends throughout the year, check out San Carlos de Bariloche UV Index.
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In December, San Carlos de Bariloche, Argentina, basks in an impressive 380 hours of sunshine, marking the zenith of daylight for the year. This radiant month stands in stark contrast to the dimmer, cooler days of the winter months, where sunshine hours plummet to as low as 148 in June. As the year progresses, there is a noticeable upward trend in sun exposure, with November already treating visitors to 342 hours. The gradual ascent from the shorter days of autumn to the long, sunlit days of December creates an inviting atmosphere, ideal for outdoor adventures amidst Bariloche's stunning landscapes. With each passing month, the warmth and light of the sun increasingly beckon travelers to embrace the natural beauty of this enchanting region.
As December approaches in San Carlos de Bariloche, the likelihood of sunny weather begins to rise dramatically, hitting an impressive 70% chance of sunshine. This marks a significant leap compared to the preceding months, with only 49% in November and much lower percentages in the colder months of April through August, where the likelihood dips to as low as 22%. The upward trend in sunny days not only heralds the arrival of summer but also invites residents and tourists alike to bask in the beauty of the region's breathtaking landscapes. With such promising weather, December is an ideal time to explore the outdoor activities and stunning scenery that Bariloche has to offer.
In San Carlos de Bariloche, Argentina, the daylight duration showcases a striking seasonal rhythm that captivates residents and visitors alike. As the year unfolds, daylight peaks in December with an impressive 15 hours of sunlight, marking the height of summer. This warmth and brightness gradually wane as the calendar advances; by February, daylight dips to 13 hours, and continues its descent to 12 hours in March. The transition into autumn brings shorter days, with daylight decreasing to 10 hours in April and maintaining that duration through June and July. A subtle resurgence occurs in August, where daylight creeps back up to 10 hours, and by November, daylight once again brightens to 14 hours. This pattern illustrates a beautiful ebb and flow of light throughout the year, inviting exploration and adventure in this scenic corner of the world.
In December, the wind in San Carlos de Bariloche picks up slightly, boasting an average speed of 2.5 m/s (6 mph). This marks a subtle increase from the preceding months, aligning with the peak summer season in Argentina. Notably, December stands out among the earlier winter months, which generally hover around 2.0 to 2.4 m/s (5 mph). The transition into summer is reflected not just in warmer temperatures but also in the invigorating breeze that sweeps through this picturesque region, making it an ideal time for outdoor adventures and enjoying the breathtaking landscapes. Overall, the trend reveals a gentle yet refreshing uptick in wind speed, enhancing the vibrant atmosphere of this charming destination.
Weather in San Carlos de Bariloche varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Carlos de Bariloche, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit notable differences in weather patterns. In December, temperatures range from a minimum of -1°C (30°F) to a maximum of 28°C (83°F), with an average of 11°C (53°F). The month brings about 43 mm (1.7 in) of precipitation over 6 days, alongside a humidity level of 73%. In contrast, January sees slightly colder nights with a minimum temperature of -3°C (27°F) but enjoys a higher average temperature of 13°C (55°F) and a maximum of 30°C (86°F). Precipitation decreases to 29 mm (1.1 in) over just 3 days, and humidity drops slightly to 70%. For a more detailed look into the specifics of January weather, check out San Carlos de Bariloche weather in January.
December and February showcase notable differences in weather patterns. In December, temperatures range from a minimum of -1°C (30°F) to a maximum of 28°C (83°F), with an average of 11°C (53°F). This month experiences about 43 mm (1.7 in) of precipitation over six days, and humidity levels are relatively high at 73%. In contrast, February offers a slightly warmer climate, with temperatures varying from -1°C (30°F) to a peak of 32°C (89°F) and an average temperature of 14°C (57°F). Additionally, this month sees reduced rainfall, totaling only 22 mm (0.9 in) over four days, while humidity decreases to 69%. For further details on February weather, you can check San Carlos de Bariloche weather in February.
When comparing the weather in December and March, we see some notable differences and similarities. December experiences slightly warmer temperatures, with an average of 11°C (53°F) and maximums reaching up to 28°C (83°F), while March has an average of 10°C (51°F) and maxima of 30°C (86°F). Both months have similar humidity levels at 73%, and precipitation is relatively low, with December receiving 43 mm (1.7 in) and March a bit higher at 49 mm (1.9 in), both spread over approximately 6 days. For more detailed information on March weather, you can check San Carlos de Bariloche weather in March.
December and April present distinct contrasts in weather patterns. In December, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 28°C (83°F), with an average of 11°C (53°F). Precipitation is relatively moderate at 43 mm (1.7 in) over about 6 days, and humidity sits at 73%. On the other hand, April experiences colder temperatures, with a minimum of -8°C (18°F) and a maximum of 21°C (71°F), averaging 7°C (45°F). The month sees slightly higher precipitation, totaling 60 mm (2.3 in) distributed over 8 days, and humidity rises to 82%. For a deeper understanding of what to expect, you can visit San Carlos de Bariloche weather in April.
The weather in December and May presents a striking contrast. In December, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable average of 11°C (53°F), with highs reaching up to 28°C (83°F). This month experiences relatively low precipitation, with only 43 mm (1.7 in) falling over about six days, and humidity levels averaging around 73%. In contrast, May is much colder, with temperatures dipping to a minimum of -10°C (15°F) and an average high of only 19°C (66°F). Additionally, May is notably wetter, receiving 101 mm (4.0 in) of rain spread over 13 days, and the humidity climbs to a higher 88%. For more detailed information about May weather specifics, you can click here: San Carlos de Bariloche weather in May.
When comparing the weather in December and June in San Carlos de Bariloche, a notable contrast emerges. December boasts a mild climate with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 28°C (83°F), averaging around 11°C (53°F). The month experiences relatively low precipitation at 43 mm (1.7 in) over 6 days, along with a humidity level of 73%. In contrast, June brings much colder conditions, with temperatures dipping as low as -11°C (12°F) and peaking at only 10°C (50°F), averaging just 1°C (34°F). This month is significantly wetter, recording 173 mm (6.8 in) of precipitation across 17 days and higher humidity at 88%. These differences illustrate the shift from the warmer, drier days of December to the colder, wetter conditions characteristic of June. For more detailed insights into June weather specifically, you can check San Carlos de Bariloche weather in June.
December weather in San Carlos de Bariloche is characterized by milder temperatures, with a minimum of -1°C (30°F), an average of 11°C (53°F), and a maximum of 28°C (83°F). The precipitation is relatively low at 43 mm (1.7 in) over about 6 days, with humidity averaging 73%. In contrast, July experiences significantly colder conditions, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 10°C (50°F) and an average around 0°C (32°F). This month sees much more precipitation, totaling 145 mm (5.7 in) over 14 days, along with higher humidity at 90%. For a detailed look at the weather during July, you can visit San Carlos de Bariloche weather in July.
December and August present contrasting weather patterns in San Carlos de Bariloche. December enjoys milder temperatures with an average of 11°C (53°F) and a maximum of 28°C (83°F), along with relatively low precipitation of 43 mm (1.7 in) spread over just 6 days. In contrast, August is much cooler, with an average temperature of only 1°C (34°F) and a maximum reaching 11°C (52°F). This month also sees significantly higher precipitation at 136 mm (5.4 in) over 17 days, and higher humidity levels at 90%. For a more detailed look at August weather in the region, visit San Carlos de Bariloche weather in August.
December weather in San Carlos de Bariloche is generally milder, with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 28°C (83°F), while September offers cooler conditions, featuring a minimum of -8°C (18°F) and a maximum of 17°C (63°F). Additionally, December has lower humidity at 73% compared to September's higher humidity level of 85%. Rainfall is also more moderate in December, with 43 mm (1.7 in) over 6 days, whereas September sees more precipitation totaling 62 mm (2.4 in) across 9 days. For more specific insights on September weather conditions, you can check this link: San Carlos de Bariloche weather in September.
When comparing the weather of December and October, it's clear that December tends to be milder and wetter. In December, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 28°C (83°F), with an average of 11°C (53°F). The month sees around 43 mm (1.7 in) of precipitation spread over 6 days, and humidity levels sit at 73%. In contrast, October experiences much cooler temperatures, with a minimum of -9°C (17°F) and a maximum of 22°C (71°F), averaging at 4°C (40°F). This month is also wetter, with 78 mm (3.1 in) of precipitation over 12 days and a slightly higher humidity of 79%. For more details, you can check San Carlos de Bariloche weather in October.
When comparing the weather in December to November, December generally offers milder temperatures, with an average of 11°C (53°F) compared to November's average of 8°C (47°F). The minimum temperature in December is slightly higher, at -1°C (30°F) versus November's -4°C (25°F). Meanwhile, maximum temperatures in December can reach up to 28°C (83°F), while November sees a maximum of 24°C (76°F). Precipitation levels are also noteworthy; December receives 43 mm (1.7 in) over about 6 days, while November experiences higher precipitation at 55 mm (2.2 in) across 9 days. The humidity remains relatively consistent between the two months, with December at 73% and November at 71%. For more detailed insights, you can check this link: San Carlos de Bariloche weather in November.
December in San Carlos de Bariloche marks a delightful shift in weather, offering a warm embrace as the summer season unfolds. With pleasant temperatures and relatively low precipitation, this month stands out compared to the chillier, wetter conditions found in other seasons. The combination of comfortable daytime highs and cooler nights creates a perfect atmosphere for exploring the stunning landscapes and vibrant outdoor activities. The humidity level contributes to a refreshing ambiance, making December an inviting time to visit. For a more detailed look at how December fits into the broader yearly weather patterns, check out San Carlos de Bariloche Climate.