Last updated: August 21, 2025
December in Nueve de Julio, Argentina features a dynamic climate characterized by warm temperatures and occasional rainfall. With daytime highs soaring up to 42°C (109°F) and an average temperature of 25°C (78°F), residents and visitors can expect a mix of sun and heat throughout the month. However, the nights provide a refreshing contrast, as the temperature can dip to a cooler 11°C (52°F). The region experiences about 27 mm (1.1 in) of precipitation over roughly 6 days, contributing to a relative humidity of 37%. This blend of warmth and moisture creates a vibrant atmosphere, perfect for enjoying the festive spirit of the month.
In Nueve de Julio, Argentina, December marks the beginning of summer, bringing a notable rise in temperatures that perfectly set the stage for sunny days and outdoor activities. With minimums averaging 11°C (52°F) and daytime highs often reaching a sweltering 42°C (109°F), the warmth is palpable, presenting a stark contrast to the cooler winter months preceding it. The average temperature in December hovers around 25°C (78°F), signaling the arrival of heat that continues to peak into January and February. This transition highlights a gradual shift from the crisp chill of earlier months to the vibrant, sun-soaked days of summer—making it a perfect time for both locals and visitors to enjoy the lively, festive atmosphere of the season.
December in Nueve de Julio, Argentina, sees a spike in precipitation, totaling 27 mm (1.1 in) over 6 days. This marks a slight increase from November's 24 mm (0.9 in) while also maintaining a steady pattern of 6 rainy days. As the year closes, December’s rainfall is indicative of the region's transition into its summer season, where moisture levels generally rise. Notably, this trend highlights a gradual increase in precipitation through the latter months of the year, culminating in a wetter December, which invigorates the landscape and sets the stage for the warmer days ahead.
In Nueve de Julio, Argentina, December marks a noticeable shift in humidity levels, with humidity dropping to 37%. This represents a steady decline from earlier months, peaking in April at 67%. The trend showcases a clear seasonal pattern, as the air becomes progressively drier as summer approaches, following the higher humidity levels typical of winter and early spring. From November's 41%, the transition into December not only signals the onset of warmer temperatures but also a refreshing decrease in humidity, contributing to the pleasant ambience of the season. Overall, December’s atmosphere is characterized by a comfortable dryness, making it a perfect time for outdoor activities.
In December, Nueve de Julio, Argentina, experiences a dramatic peak in its UV Index, reaching an extreme 15—the highest level recorded throughout the year. This trend reflects a consistent pattern established in the previous months as the UV Index fluctuates between extreme and very high levels, particularly in the summer months of January and February. With a quick burn time of just 10 minutes, the necessity for sun protection is paramount in December. As the season progresses into the cooler months, a gradual decline is observed, with the UV levels dipping to moderate and high in the subsequent winter months. To stay informed and protected, visit Nueve de Julio UV Index.
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December in Nueve de Julio, Argentina, is a radiant conclusion to the year, boasting an impressive 391 hours of sunshine. This month stands out as the sunniest in the annual cycle, showcasing a delightful trend of increasing sunshine hours as the year winds down. From a modest 277 hours in May to December's peak, the sunshine progressively brightens, hinting at the warmer embrace of summer. Following November’s 371 hours, December elevates the sun-soaked experience, inviting locals and visitors alike to revel in outdoor festivities. This steady rise toward the year’s end not only highlights December's warmth but also sets the stage for a vibrant start to the New Year.
In Nueve de Julio, Argentina, December typically brings a 68% chance of sunny weather, which is lower than the preceding months of November (79%) and October (79%). This slight dip in sunshine reflects a general trend toward varying weather patterns as the year winds down. While December's likelihood of clear skies is notably less than the peak sunshine months of July (86%) and August (85%), it still offers ample opportunities for enjoying the outdoors. As summer officially begins, the sun continues to shine brightly, making December a delightful time for both locals and visitors to embrace the warmth of the season.
In Nueve de Julio, Argentina, the rhythm of daylight throughout the year paints a captivating portrait of seasonal change. As the year transitions from summer to winter, December shines brightly with 14 hours of daylight, marking the peak of the sun's presence. This month adds an extra hour of daylight compared to November's 13 hours, reflecting the longer summer days that characterize the southern hemisphere. Following December, daylight begins to taper off gradually, reaching a minimum of 10 hours from June to August, before the cycle begins anew. This ebb and flow of sunlight not only influences the daily activities of the locals but also enhances the region's vibrant summer atmosphere, inviting both residents and visitors to embrace the outdoors.
In December, the winds of Nueve de Julio, Argentina, begin to stir with a notable vigor, as the average wind speed reaches 3.0 m/s (7 mph)—the highest point of the year. This steady increase from the cooler months hints at the dynamic transition into summer. Compared to the milder winds of earlier months, which hover around 2.0 to 2.9 m/s, December's breezes bring a fresh energy to the landscape. As the holiday season approaches, locals and visitors alike can feel the invigorating gusts that mark the onset of warmer days, reshaping the town’s atmosphere into one of liveliness and anticipation.
Weather in Nueve de Julio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Nueve de Julio, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit similar weather patterns, with mild temperature variations and relatively low precipitation. In December, temperatures range from a minimum of 11°C (52°F) to a maximum of 42°C (109°F), with an average temperature of 25°C (78°F) and about 27 mm (1.1 in) of precipitation over six days. In contrast, January sees a slight increase in average temperature to 27°C (81°F), with lows remaining the same at 11°C (51°F) and a maximum of 41°C (107°F). Precipitation in January is slightly lower at 26 mm (1.0 in) spread over five days, accompanied by a rise in humidity to 44%. For more detailed information about the weather during this period, you can refer to Nueve de Julio weather in January.
December and February share similar average temperatures, both hovering around 25°C (78°F), but there are some notable differences in their weather patterns. December features slightly higher maximum temperatures peaking at 42°C (109°F), while February sees a marginally cooler maximum of 41°C (106°F). Humidity levels rise in February to 48%, compared to December's 37%, contributing to a more muggy feel. Additionally, February experiences less precipitation than December, with only 21 mm (0.8 in) over six days compared to December's 27 mm (1.1 in) over the same number of days. For more detailed information, you can check Nueve de Julio weather in February.
In December, the weather is typically warmer, with average temperatures reaching around 25°C (78°F) and maximums soaring up to 42°C (109°F), accompanied by relatively low humidity at 37%. The month sees a total precipitation of 27 mm (1.1 in) over about 6 days, making it a drier time compared to the autumn months. In contrast, March experiences milder temperatures, with averages around 22°C (73°F) and maximums of 38°C (101°F). Additionally, March tends to be more humid at 56%, with precipitation of 20 mm (0.8 in) over just 3 days, indicating a gradual shift toward increased moisture in the air. For more specific weather details, check out Nueve de Julio weather in March.
December and April present contrasting weather conditions. In December, temperatures range from a minimum of 11°C (52°F) to a scorching maximum of 42°C (109°F), with an average of 25°C (78°F) and relatively low humidity at 37%. The month sees some precipitation, with about 27 mm (1.1 in) spread across 6 days. In contrast, April experiences cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 36°C (96°F), averaging at 19°C (66°F). The humidity is significantly higher at 67%, and precipitation is less frequent, totaling 19 mm (0.8 in) over just 3 days. For more detailed information on April weather, you can visit Nueve de Julio weather in April.
In December, the weather is significantly warmer, with temperatures ranging from a mild 25°C (78°F) on average to highs of 42°C (109°F), while May experiences much cooler conditions, with average temperatures around 13°C (56°F) and maximums reaching 28°C (84°F). Precipitation is also a factor, as December sees about 27 mm (1.1 in) of rain over six days, compared to May's lighter rainfall of 17 mm (0.7 in) across four days. Additionally, the humidity is notably lower in December at 37%, in stark contrast to May's higher humidity level of 66%. For a detailed comparison of weather conditions in May, you can visit Nueve de Julio weather in May.
December and June present starkly contrasting weather patterns. In December, temperatures soar significantly, ranging from a mild 25°C (78°F) on average to a scorching maximum of 42°C (109°F), with only 27 mm (1.1 in) of precipitation spread over six days and relative humidity at a moderate 37%. In comparison, June experiences much cooler temperatures, averaging 9°C (48°F) and peaking at 27°C (81°F), with lower precipitation of just 6 mm (0.3 in) over two days and higher humidity at 58%. For a closer look at June weather specifics, visit Nueve de Julio weather in June.
When comparing the weather in December and July, notable differences emerge. December experiences much warmer temperatures, with a minimum of 11°C (52°F) and a maximum reaching 42°C (109°F), while July is significantly cooler, with temperatures dropping to a minimum of -4°C (26°F) and peaking at only 25°C (77°F). Additionally, December has a drier climate with just 27 mm (1.1 in) of precipitation over six days, compared to July's 10 mm (0.4 in) which falls over only two days. Furthermore, July tends to be more humid, with humidity levels at 58%, in contrast to December's lower 37% humidity. For a closer look at the conditions in July, you can visit Nueve de Julio weather in July.
In December, the weather is characterized by much warmer temperatures, with a minimum of 11°C (52°F), an average of 25°C (78°F), and a maximum that can reach up to 42°C (109°F). This month experiences relatively low precipitation at 27 mm (1.1 in) over about six days, resulting in a humidity level of 37%. In contrast, August presents a cooler climate, with temperatures ranging from a chilly -4°C (24°F) at night to a comfortable maximum of 33°C (92°F) during the day, and an average of only 12°C (54°F). Precipitation is minimal in August, totaling just 6 mm (0.2 in) over a single day, while humidity is higher at 52%. For more detailed information on the weather conditions in August specifically, you can visit Nueve de Julio weather in August.
When comparing the weather in December and September, notable differences emerge. December features much warmer temperatures, with a minimum of 11°C (52°F), averaging 25°C (78°F), and peaking at a scorching 42°C (109°F). In contrast, September experiences much cooler conditions, starting with a minimum temperature of -1°C (31°F) and averaging 16°C (61°F), while the maximum temperature reaches 38°C (101°F). Additionally, December has higher precipitation levels, totaling 27 mm (1.1 in) over six days, while September sees significantly less rain, at 13 mm (0.5 in) over just three days. Humidity levels are also higher in September, at 45%, compared to December's 37%. For more details on September weather, check out Nueve de Julio weather in September.
When comparing the weather between December and October, December tends to be significantly warmer, with temperatures ranging from a minimum of 11°C (52°F) to a scorching maximum of 42°C (109°F) and an average of 25°C (78°F). In contrast, October experiences cooler weather, with temperatures varying from a low of 2°C (35°F) to a high of 38°C (100°F), averaging at 19°C (67°F). Additionally, December receives slightly more precipitation, totaling 27 mm (1.1 in) over about six days, compared to October's 20 mm (0.8 in) over four days, though October has a higher humidity level at 43% compared to December's 37%. For more details about the weather specifics in October, you can check Nueve de Julio weather in October.
In comparing the weather of December and November, December tends to be warmer overall, with average temperatures reaching 25°C (78°F) compared to November's 23°C (73°F). The minimum temperature in December is also higher at 11°C (52°F) versus November's 7°C (45°F), while the maximum temperature can soar to 42°C (109°F) compared to 38°C (100°F) in November. Additionally, December has slightly more precipitation at 27 mm (1.1 in) over 6 days, while November recorded 24 mm (0.9 in) on the same number of days. Humidity levels are marginally lower in December at 37%, compared to 41% in November. For more detailed monthly weather information, you can check Nueve de Julio weather in November.
December in Nueve de Julio marks a vibrant shift in weather, with warmer temperatures taking center stage as summer beckons. The days grow hotter, often reaching sweltering highs, while the nights bring a refreshing coolness. Unlike the cooler, more temperate months, December also sees a slight uptick in precipitation, with occasional rain showers that provide brief relief from the heat. The lower humidity levels contribute to a more enjoyable outdoor experience, making this month a fantastic time to explore the region. For a deeper dive into how December fits into the broader climate profile of Nueve de Julio, check out Nueve de Julio Climate.