Last updated: August 21, 2025
December in Santa Fe, Argentina showcases a vibrant summer climate, where temperatures can soar to a maximum of 38°C (101°F), providing plenty of warm days for outdoor activities. The average temperature hovers around a pleasant 24°C (76°F), while cooler evenings dip to a minimum of 10°C (51°F). This month also experiences about 97 mm (3.8 in) of precipitation over 7 days, contributing to a relative humidity of 57%. Overall, December presents a dynamic blend of heat and occasional rainfall, making it a lively time to explore this beautiful region.
In December, Santa Fe, Argentina begins to feel the peak of summer, with temperatures steadily climbing. The minimum temperature hovers around 10°C (51°F), while the average rises to a warm 24°C (76°F) and the maximum can soar to 38°C (101°F). This trend reflects a pattern of increasing warmth as the year progresses, moving from the cooler temperatures of the earlier months to the sweltering heat of summer. With its balmy evenings and sunny days, December is a perfect time for outdoor activities and enjoying the vibrant atmosphere of the city.
In December, Santa Fe, Argentina, experiences a notable shift in precipitation, with an average of 97 mm (3.8 in) of rainfall spread across 7 days. This marks an increase from the drier months of July and August, where rainfall dipped to 36 mm (1.4 in) and 27 mm (1.1 in), respectively. As the year draws to a close, December’s rainfall patterns reflect a trend of increasing moisture, building on the wetter November, which saw 75 mm (2.9 in). This consistent uptick hints at the city's transition into the summer season, characterized by more frequent precipitation following the relatively dry winter months, ultimately refreshing the landscape and setting the stage for the vibrant growth of the new year.
December marks a transitional moment in Santa Fe, Argentina, as humidity levels hover around 57%, slightly higher than the previous month but significantly lower than the peak seen in the cooler months of April and May. This seasonal shift reflects a general trend of increasing humidity from the start of the year, reaching its highest in late autumn before tapering off again as summer approaches. With humidity fluctuating from a comfortable 50% in October to this December figure, residents and visitors can expect a more noticeable moisture in the air, making the warm summer days feel a bit more sultry as they prepare to embrace the joys of the festive season.
In Santa Fe, Argentina, December brings an extreme UV Index of 14, mirroring the intense conditions seen in January and November. This consistent high rating indicates that sun exposure during this month can lead to sunburn in just 10 minutes, emphasizing the need for protective measures. Following a trend of decreasing UV levels from March to June, the index spikes again in October before leveling out with December, illustrating a seasonal pattern where summer months demand heightened awareness for sun safety. As the sun shines brightly over the festive season, it's crucial to stay informed and protected during outdoor activities. For more details on UV levels, visit Santa Fe UV Index.
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In December, Santa Fe, Argentina, basks in a remarkable 378 hours of sunshine, marking it as the sunniest month of the year. This vibrant tableau of light sets the stage for summer activities and gatherings. Following a trend of increasing daylight, sunshine hours rise sharply from November's already impressive 347 hours, indicating a seasonal peak. As the year unfolds, the sunlight tends to wane from March's 311 hours to a winter lull in May and June, where the city experiences its lowest sunshine levels. However, the gradual increase in hours from the depths of winter back up to December reinforces Santa Fe’s allure as a destination drenched in light and warmth. The bright December days beckon residents and visitors alike to revel in the outdoor splendor before the year concludes.
In December, Santa Fe, Argentina, enjoys a promising likelihood of sunny weather, with a 73% chance of sunshine. This marks a delightful continuation of high sunny days as the year draws to a close, following the trend observed in the preceding months. With an upward trajectory from 64% in November and solidifying through previous summer months, December's weather aligns closely with the sunnier conditions typical of late spring and early summer. When compared to previous months, December stands out with a robust potential for outdoor activities and holiday celebrations under clear skies, making it an ideal time to soak in the warmth before the year ends.
In Santa Fe, Argentina, December marks a vibrant pivot in daylight duration, offering an impressive 14 hours of sunlight each day. This increase reflects a gradual ascent that begins in the first half of the year, where daylight stretches from a moderate 10 hours in May through July. As the seasons progress, the sun graces the city with more light, peaking in December and heralding the summer solstice. Following this bright finale, daylight begins its slow decline, gently reminding us of the cyclical nature of time and seasons. The progression from longer to shorter days mirrors the rhythm of life in Santa Fe, where each month carries its unique charm, culminating in the radiant embrace of December’s generous sunlight.
As December settles over Santa Fe, Argentina, the city's average wind speed drops to 2.9 m/s (6 mph), indicating a gentle and serene close to the year. This slight decrease follows a trend of moderate winds that have been building since the spring months, where speeds hovered around 3 m/s. Notably, while the wind was brisker in the earlier months, particularly in July with winds reaching up to 3.4 m/s (8 mph), December ushers in a calm that perfectly complements holiday festivities. The overall pattern suggests that while the city enjoys a generally breezy climate throughout the year, December provides a refreshing breath of stillness, making it an ideal time for leisurely strolls and outdoor gatherings.
Weather in Santa Fe varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Fe, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in Santa Fe exhibit notable differences in weather conditions. December sees a minimum temperature of 10°C (51°F) and an average of 24°C (76°F), with maximum highs reaching 38°C (101°F). Conversely, January experiences slightly warmer temperatures, with a minimum of 13°C (55°F) and an average of 26°C (78°F), peaking at 41°C (106°F). Additionally, January tends to be wetter, averaging 125 mm (4.9 in) of precipitation compared to December's 97 mm (3.8 in), both months registering precipitation over 7 days. Overall, while both months are warm and humid, January is marked by higher temperatures and increased rainfall. For more detailed information, check out Santa Fe weather in January.
In December, the weather in Santa Fe features a minimum temperature of 10°C (51°F) and heats up to a maximum of 38°C (101°F), with an average temperature of 24°C (76°F). This month experiences a higher precipitation level of 97 mm (3.8 in) over seven days, contributing to the overall humidity of 57%.
In contrast, February sees slightly warmer nights with a minimum temperature of 11°C (51°F) and a similar average of 24°C (76°F). However, the maximum temperature drops slightly to 37°C (98°F), and the total precipitation decreases to 61 mm (2.4 in), also spread across seven days, maintaining the same humidity level of 57%. For more details on the February weather in Santa Fe, you can visit Santa Fe weather in February.
In December, the weather displays warm temperatures, with minimums around 10°C (51°F) and maximums peaking at 38°C (101°F), yielding an average temperature of 24°C (76°F). The month experiences moderate precipitation, totaling 97 mm (3.8 in) over seven rainy days and a humidity level of 57%. In contrast, March features slightly cooler conditions, with minimum temperatures of 9°C (48°F) and maximums reaching 36°C (97°F), averaging 22°C (72°F). Precipitation is a bit higher at 105 mm (4.1 in), occurring on eight days, and humidity increases to 65%. For more detailed insights, check out Santa Fe weather in March.
In December, the weather in Santa Fe tends to be warmer, with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 38°C (101°F), and an average of 24°C (76°F). The month typically experiences 97 mm (3.8 in) of precipitation over about seven days, with humidity at 57%. In contrast, April features cooler temperatures, with a minimum of 6°C (43°F), an average of 20°C (68°F), and a maximum of 35°C (95°F). April sees slightly higher precipitation at 103 mm (4.1 in) over eight days and increased humidity at 76%. For more details, check out Santa Fe weather in April.
December and May exhibit contrasting weather patterns. In December, temperatures range from a minimum of 10°C (51°F) to a maximum of 38°C (101°F), averaging around 24°C (76°F). This month sees a bit more rainfall, with 97 mm (3.8 in) of precipitation over about seven days and a humidity level of 57%. In contrast, May experiences much cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 29°C (85°F), averaging 15°C (60°F). Despite having slightly less precipitation at 83 mm (3.3 in) over the same seven days, the humidity increases significantly to 83%. For more insights into May's weather, check out Santa Fe weather in May.
When comparing the weather in December and June, notable differences emerge. December boasts much warmer temperatures, ranging from a minimum of 10°C (51°F) to a scorching maximum of 38°C (101°F), with an average of 24°C (76°F). This month also sees higher precipitation levels at 97 mm (3.8 in) over 7 days, alongside a humidity level of 57%. In contrast, June presents a much cooler climate; temperatures drop to a minimum of -1°C (31°F) and have a maximum of 27°C (81°F), with an average of 13°C (55°F). Additionally, precipitation is relatively lower in June at 45 mm (1.8 in) over 5 days, but humidity is higher at 78%. For more specific details about the weather during this month, you can check Santa Fe weather in June.
In December, the weather tends to be much warmer compared to July, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 38°C (101°F) and an average of 24°C (76°F). This warmer month experiences higher precipitation, totaling 97 mm (3.8 in) over approximately 7 days, while humidity hovers around 57%. In contrast, July features cooler temperatures, with a minimum of -2°C (29°F), an average of 12°C (53°F), and a maximum of 29°C (84°F). Precipitation is significantly lower in July, at 36 mm (1.4 in) over just 4 days, with humidity slightly higher at 58%. For more details, check out Santa Fe weather in July.
The weather in December is significantly warmer than in August, with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 38°C (101°F), compared to August's cooler range of 0°C (32°F) to 32°C (89°F). Additionally, December experiences more precipitation, totaling 97 mm (3.8 in) over an average of 7 days, while August sees only 27 mm (1.1 in) across 4 days. Humidity levels are fairly similar, with December sitting at 57% and August slightly lower at 54%. For more detailed information, check out Santa Fe weather in August.
December and September present contrasting weather patterns. In December, temperatures soar, with a minimum of 10°C (51°F), averaging 24°C (76°F), and peaking at a scorching 38°C (101°F). The month also receives considerable rainfall, totaling 97 mm (3.8 in) over 7 days, with humidity around 57%. Conversely, September experiences much cooler temperatures, ranging from a minimum of 2°C (35°F) to a maximum of 35°C (95°F), with an average of 16°C (62°F). Rainfall is less frequent and lighter at 51 mm (2.0 in) over 5 days, accompanied by slightly higher humidity at 59%. For more detailed insights, check out Santa Fe weather in September.
When comparing the weather in December to that of October, there are some notable differences. December experiences warmer temperatures overall, with an average of 24°C (76°F) compared to October's 19°C (66°F). The minimum temperatures in December are also higher, starting at 10°C (51°F) versus October's 5°C (41°F). However, October comes close with a maximum temperature of 37°C (100°F), only one degree lower than December's peak of 38°C (101°F). In terms of precipitation, December has slightly lower rainfall at 97 mm (3.8 in) over 7 days, while October sees 108 mm (4.2 in) over 8 days. Additionally, humidity is higher in December at 57% compared to 50% in October. For more details on October weather, you can check out Santa Fe weather in October.
In comparing the weather of December and November, December tends to be slightly warmer, with average temperatures reaching 24°C (76°F) compared to November's 22°C (72°F). Although both months have the same maximum temperature of 38°C (101°F), December sees a marginally higher minimum temperature of 10°C (51°F) versus November's 9°C (48°F). December also experiences more precipitation, totaling 97 mm (3.8 in) over 7 days, while November records 75 mm (2.9 in) over 6 days. The humidity is slightly higher in December at 57%, compared to November’s 53%. For a detailed look at November’s weather, you can visit Santa Fe weather in November.
December in Santa Fe ushers in a vibrant shift as the city transitions into its warmest season. With temperatures averaging around 24°C (76°F) and soaring to a maximum of 38°C (101°F), the warmth is unmistakable, making it a stark contrast to the cooler months. Despite the heat, December brings an average of 97 mm (3.8 in) of precipitation over approximately 7 days, adding a refreshing touch to the warm air and promoting lush landscapes. Coupled with a moderate humidity level of 57%, the atmosphere can feel quite different from other months, making it an inviting time to explore outdoor festivities. For a deeper understanding of seasonal variations, check out Santa Fe Climate.