Last updated: August 21, 2025
In San Salvador de Jujuy, Argentina, December welcomes the summer with maximum temperatures soaring up to 31°C (88°F) and an average of 20°C (68°F), offering a warm environment perfect for outdoor activities. However, visitors should be prepared for occasional rain, as the month experiences 272 mm (10.7 in) of precipitation over 23 days, contributing to the region's lush landscapes. With humidity levels at a notable 77%, the air can feel quite muggy, making it essential to stay hydrated while exploring the vibrant local culture and breathtaking natural scenery.
In San Salvador de Jujuy, December marks a delightful transition into the heart of summer, with temperatures appreciating warmth and vibrancy. The month enjoys a minimum of 8°C (47°F) and a maximum of 31°C (88°F), ideal for those seeking outdoor adventures. With an average temperature of 20°C (68°F), December stands out as a period of pleasant warmth compared to the cooler months preceding it. As the weather warms, the city buzzes with life, showcasing its rich culture against a backdrop of sunny skies. This trend of increasing temperatures highlights the shift towards a hot and lively summer, perfect for exploring the stunning landscapes and vibrant streets of Jujuy.
In San Salvador de Jujuy, Argentina, December marks a transition into the wet season, with precipitation reaching 272 mm (10.7 in) over an average of 23 rainy days. This increase in moisture follows November's substantial rainfall of 241 mm (9.5 in), emphasizing a trend of heightened precipitation as the year draws to a close. The trend is notable considering the gradual rise from previous months, with March recording the highest average rainfall at 282 mm (11.1 in). As the region shifts further into summer, residents can expect December's rain to contribute to lush landscapes and vibrant natural scenery, encapsulating the essence of the Argentinian summer.
December in San Salvador de Jujuy marks a notable shift in humidity trends, with levels reaching 77%. This increase follows a gradual decline from the high 88% in March, as the region transitions through the cooler months of winter and early spring, where humidity dips to its lowest points in July and August at just 47% and 44%, respectively. As the year progresses into the warmer months, humidity begins to climb again, culminating in December’s moderate yet noticeable increase. This month, while still below the peak humidity seen at the start of the year, reflects a return to the more humid conditions characteristic of summer, providing a balance after the dry spell experienced mid-year.
In December, San Salvador de Jujuy experiences a UV Index of 16, categorizing it as extreme and suggesting a burn time of merely 10 minutes. This reflects a notable consistency in the region's UV exposure throughout the summer months, with similar extremes observed in both January and November. As the year winds down, the UV Index remains high, echoing the patterns seen from early spring through late autumn. Visitors and residents alike should stay vigilant in protecting their skin during this time, especially considering that the burn time is alarmingly short. For more detailed insights into solar intensity, check out the San Salvador de Jujuy UV Index.
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In December, San Salvador de Jujuy basks in an impressive 283 hours of sunshine, making it one of the sunniest months of the year. This vibrant glow caps a notable trend, where the city's daylight hours exhibit a general increase from the cooler months of April through June. Following a seasonal dip, July shines with its peak of 256 hours, leading into a remarkably bright August with 296 hours, the highest on record. As the year winds down, sunlight begins to taper off slightly, but December still offers a warm embrace of light, keeping the spirit alive as the city transitions into the new year. This seasonal rhythm highlights Jujuy’s unique climate, attracting those seeking warmth and a picturesque summer escape.
In December, San Salvador de Jujuy experiences a notable dip in sunny weather, with a 28% chance of sunshine. This marks a decline from the more favorable conditions of the preceding months, particularly November's 38%. The trend throughout the year shows a progressive increase in sunny days, peaking in the winter months of June and July, where the likelihood soars to 63% and 71% respectively. As the year winds down, December's lower chances of sunshine serve as a reminder of the seasonal shifts, hinting at the cooler, cloudier days that precede the onset of summer.
In San Salvador de Jujuy, December brings a delightful return to longer days, with daylight extending to 13 hours. This month, along with November, marks the peak of daylight duration as the region transitions from the shorter days of winter into the vibrant summer months. The gradual shift in daylight hours is evident throughout the year, beginning with a generous 13 hours in January, then consistently tapering to 10 hours from May to July. As spring unfolds into summer, September and October see an increase back to 12 hours, paving the way for the sunlit joys of December. This cyclical pattern not only highlights the seasonal rhythm of the region but also invites residents and visitors alike to embrace the warmth and beauty of summer under the expansive sky.
December in San Salvador de Jujuy witnesses a gentle return to calmer winds, with an average speed of 1.3 m/s (3 mph), mirroring the breezy conditions of January and May. This stable wind pattern, prevalent throughout the year, reflects a gradual increase from April's 1.1 m/s to October's peak of 1.7 m/s. As the year draws to a close, the winds soften, creating a pleasant atmosphere that complements the vibrant landscape of Jujuy. With only slight fluctuations over the months, the December winds herald a tranquil end to the year's breezy variations, allowing locals and visitors alike to enjoy the serene beauty of this charming Argentine destination.
Weather in San Salvador de Jujuy varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Salvador de Jujuy, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in San Salvador de Jujuy showcase mild and warm temperatures, but there are notable differences between the two months. December sees a minimum temperature of 8°C (47°F) and an average of 20°C (68°F), peaking at 31°C (88°F), while January experiences slightly warmer conditions with a minimum of 12°C (54°F) and an average of 21°C (69°F), reaching a maximum of 32°C (90°F). Precipitation is more frequent in December, totalizing 272 mm (10.7 in) over 23 days, compared to January's 223 mm (8.8 in) over 21 days. Additionally, humidity levels rise in January to 84%, up from December’s 77%. For further details, you can check San Salvador de Jujuy weather in January.
In December, temperatures in San Salvador de Jujuy range from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), with an average of 20°C (68°F). The month experiences significant rainfall, with 272 mm (10.7 in) of precipitation over 23 days, and the humidity hovers around 77%.
In contrast, February sees slightly higher temperatures, with minimums of 12°C (54°F) and maximums of 30°C (86°F), while the average remains close at 19°C (67°F). Although February has slightly less rainfall at 237 mm (9.3 in), it maintains the same number of rainy days, and humidity rises to 87%. For more detailed weather information, check San Salvador de Jujuy weather in February.
When comparing the weather in December to that of March, we notice that both months experience similar temperature ranges. December typically sees a minimum of 8°C (47°F) and a maximum of 31°C (88°F), while March has a slightly lower average range with a minimum of 7°C (45°F) and a maximum of 30°C (86°F). Precipitation is slightly higher in March, with 282 mm (11.1 in) falling over 24 days, compared to December's 272 mm (10.7 in) over 23 days. Additionally, March tends to be more humid, with an average humidity level of 88% compared to December's 77%. For more detailed information, you can check San Salvador de Jujuy weather in March.
December and April present distinctive weather patterns, with December featuring warmer temperatures and significantly higher humidity. In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), averaging around 20°C (68°F). In contrast, April offers cooler conditions, with temperatures ranging from 6°C (42°F) to 26°C (80°F) and an average of 16°C (61°F). Both months experience frequent precipitation—272 mm (10.7 in) in December and 267 mm (10.5 in) in April—over approximately 23 days, although April shows slightly elevated humidity levels at 85% compared to December's 77%. For a detailed look at April weather, you can visit San Salvador de Jujuy weather in April.
In comparing the weather patterns of December and May, December tends to be much warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), while May experiences cooler temperatures, with a range from 2°C (35°F) to 25°C (78°F). Additionally, December has significantly higher precipitation, totaling 272 mm (10.7 in) over 23 days, compared to May's 155 mm (6.1 in) over 19 days. Despite the slightly higher humidity in December at 77%, both months are relatively humid, with May at 74%. For more detailed insights into May's weather, check out San Salvador de Jujuy weather in May.
In comparing the weather between December and June, it's clear that December is characterized by much warmer temperatures, with an average of 20°C (68°F) and maximums reaching up to 31°C (88°F). This month also sees higher humidity levels at 77% and significant precipitation, with 272 mm (10.7 in) falling over 23 days. In contrast, June experiences much cooler conditions, with average temperatures around 11°C (52°F) and maximums only reaching 26°C (79°F). The humidity is lower at 56%, and the month is relatively dry, receiving only 55 mm (2.2 in) of rain over 11 days. For more specific details on the weather, you can visit San Salvador de Jujuy weather in June.
December and July present dramatically different weather patterns in San Salvador de Jujuy. In December, temperatures range from a comfortable 20°C (68°F) on average, reaching up to a maximum of 31°C (88°F), accompanied by high humidity at 77%. This month also sees significant rainfall, with 272 mm (10.7 in) spread over 23 days, resulting in a lush and vibrant atmosphere. In contrast, July experiences much cooler conditions, with average temperatures around 11°C (52°F) and highs peaking at 27°C (80°F). Precipitation is minimal at just 45 mm (1.8 in) over 10 days, and the humidity level drops to 47%, creating a drier and fresher climate. For more detailed information, you can visit San Salvador de Jujuy weather in July.
December and August in San Salvador de Jujuy present starkly contrasting weather conditions. In December, temperatures range from a mild 20°C (68°F) on average, with maximums soaring up to 31°C (88°F), accompanied by high humidity at 77%. This month is also marked by significant rainfall, totaling 272 mm (10.7 in) over 23 days. In contrast, August experiences much cooler temperatures, averaging 12°C (55°F) and dipping to a chilly -1°C (30°F) at night, while the highest temperature reaches the same peak of 31°C (88°F). However, August is characterized by significantly less precipitation, with only 52 mm (2.1 in) over 8 days and lower humidity at 44%. For more detailed information, you can check out San Salvador de Jujuy weather in August.
December and September present quite different weather patterns. In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), with an average temperature of 20°C (68°F). The month is notably wetter, with 272 mm (10.7 in) of precipitation over 23 days, coupled with high humidity levels of 77%. In contrast, September experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 15°C (60°F), peaking at 33°C (91°F). Precipitation during this month is significantly lower at 85 mm (3.4 in) across 13 days, and humidity is more comfortable at 57%. For more details on September weather, you can check San Salvador de Jujuy weather in September.
In comparing the weather of December and October, December tends to be warmer overall, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 31°C (88°F), while October has a slightly cooler average, with temperatures dipping from a minimum of 6°C (43°F) to a maximum of 34°C (94°F). Notably, December experiences more precipitation, with 272 mm (10.7 in) over 23 days, compared to October's 201 mm (7.9 in) over 21 days, leading to higher humidity levels in December at 77%, whereas October enjoys lower humidity at 55%. For further details on October weather, you can refer to San Salvador de Jujuy weather in October.
In comparing the weather between December and November, December generally experiences slightly warmer temperatures, with averages around 20°C (68°F) compared to November's 19°C (66°F). The maximum temperature also rises to 31°C (88°F) in December, making it a bit hotter than November, which peaks at 30°C (87°F). However, December sees increased precipitation, totaling 272 mm (10.7 in) over 23 days, compared to November's 241 mm (9.5 in) over 22 days. Humidity is higher in December at 77%, while November enjoys a lower level of 70%. Overall, December tends to be warmer and wetter than November. For a detailed overview, you can visit San Salvador de Jujuy weather in November.
As December unfolds in San Salvador de Jujuy, the city experiences a notable shift in weather compared to other months. With daytime temperatures reaching a warm 31°C (88°F), the increase in warmth invites locals and visitors alike to enjoy outdoor activities. Humidity levels peak at 77%, creating a sultry atmosphere, while frequent rainfall—spanning 23 days—adds a refreshing touch to the hot days, contributing to a total precipitation of 272 mm (10.7 in). This month distinctly contrasts with the cooler and drier months preceding it, showcasing the vibrant and dynamic climate of the region. For a deeper understanding of seasonal variations, explore more on the San Salvador de Jujuy Climate page.