Last updated: August 21, 2025
In January, Santa Fe, Argentina, experiences a dynamic climate, characterized by soaring temperatures that can reach a maximum of 41°C (106°F). The average temperature hovers around a comfortable 26°C (78°F), while the minimum dips to a mild 13°C (55°F) during the cooler nights. This month sees moderate rainfall, totaling approximately 125 mm (4.9 in) over about 7 days, enhancing the region's greenery. With a humidity level of 51%, the air is moderately humid, creating a lively summer atmosphere that attracts both locals and visitors alike.
In January, Santa Fe, Argentina experiences its warmest temperatures, with average highs soaring to a blistering 41°C (106°F). Mornings start off pleasantly around 13°C (55°F), but as the day progresses, the heat intensifies, making it essential to stay hydrated and seek shade. This trend of warm weather continues into February, albeit slightly cooler, with average temperatures dipping to around 24°C (76°F). As the summer months transition into autumn, temperatures align more with milder conditions, showcasing a steady decline in both daytime highs and nighttime lows. By March, the city sees average highs of 36°C (97°F), gradually cooling further as autumn settles in, reflecting a natural ebb and flow in temperature that marks the seasonal shift in this vibrant region.
In January, Santa Fe, Argentina, experiences its heaviest precipitation of the year, averaging 125 mm (4.9 in) over 7 days. This substantial rainfall sets the tone for the summer months, marking a peak in the region's wetter season. Following January, precipitation notably decreases in February to 61 mm (2.4 in), continuing a downward trend through the following months, with March and April seeing 105 mm and 103 mm, respectively. The frequency of rain does not dramatically fluctuate, remaining consistent at around 7 to 8 rainy days until mid-year, when it tapers off to just 4 days in July and August. As the seasons transition, Santa Fe's precipitation levels gradually rise again in the latter part of the year, emphasizing the cyclical nature of its climate.
In January, Santa Fe experiences a moderate humidity level of 51%, marking the beginning of a gradual increase that continues through the summer months. As February rolls in, humidity rises to 57%, setting the stage for further increases in the early fall. By March, the air grows even more humid at 65%, and this trend continues into April with 76%, as the city embraces its warm season. However, the peak humidity occurs in May, reaching a notable 83% before beginning to taper off in the cooler months. June sees a slight decrease to 78%, followed by a more significant drop to 58% in July. The following months fluctuate but generally remain in the mid-range, with humidity levels settling back to 50% in October, illustrating a clear seasonal cycle of humidity that reflects the regional climate's transition throughout the year.
In January, Santa Fe experiences a staggering UV Index of 14, marking it as an extreme exposure category with a burn time of only 10 minutes. This trend of high UV intensity extends into February, where the index slightly dips to 13, maintaining the same urgency for protection against sun exposure. As summer progresses, March sees a reduction to 11, yet still remains in the extreme zone. Notably, this trend of high UV levels is mirrored in November and December, both hitting peaks of 14. The month transitions, particularly into April and May, reveal a decrease as the index falls to 8 and 6 respectively, indicating a shift to very high and high exposure categories, where burn times increase to 15 and 25 minutes. This seasonal pattern displays a clear trend of extreme UV levels at the start of the year, demanding robust sun protection strategies. For more detailed information, check the Santa Fe UV Index.
UV Risk Categories
In January, Santa Fe, Argentina, basks in an impressive 293 hours of sunshine, setting a vibrant tone for the summer season. As the month progresses, sunshine hours peak in November at 347 hours, showcasing the region's generous luminosity as spring approaches. Following January, February enjoys a slight increase to 315 hours, while March remains favorable with 311 hours before a gradual decline begins in April, dropping to 269 hours. The sunshine trend reveals a steady decrease through the winter months, with June reaching its lowest at 217 hours. However, as spring nears, the sun resurfaces, bringing brighter days in August and culminating in a glorious 378 hours by December. This fluctuating sunshine pattern not only enhances the charm of Santa Fe but also offers a delightful incentive for both residents and visitors year-round.
In January, Santa Fe enjoys a moderately sunny outlook with a 62% chance of clear skies, setting the tone for summer days filled with outdoor activities. As the month transitions into February, the likelihood of sunshine increases slightly to 68%, suggesting that the region's warm weather is on the rise. However, this trend downshifts as autumn approaches, with March presenting a notable drop to 48% sunshine, indicating a shift in seasonal patterns. Surprisingly, April bounces back to a 65% chance of sun, displaying the region's variability. A pattern emerges throughout the year, where the winter months generally hover around the 50% mark, with sunny days peaking dramatically in July and August at 74% and 78%, respectively. This cyclical rhythm of sunshine illustrates the charming unpredictability of weather in Santa Fe, making each month a delightful surprise for residents and visitors alike.
In Santa Fe, Argentina, January marks the height of summer with a generous 13 hours of daylight, setting a vibrant scene for outdoor activities. The daylight hours remain consistent through February, allowing for prolonged enjoyment of the warm weather. As March ushers in autumn, daylight begins to wane slightly, dropping to 12 hours. This gradual decrease continues through the cooler months, with April at 11 hours and May seeing a further dip to 10 hours. Strikingly, June, July, and August maintain this trend, with a steady 10 hours of daylight, offering a cozy winter atmosphere. As spring approaches in September, the days begin to lengthen once again, returning to 11 hours, and then gradually increasing to 12 hours in October. The year wraps up with November gaining back 13 hours, and December shining brightly with 14 hours, embracing the return of longer days with the arrival of summer once more. This rhythmic ebb and flow of daylight beautifully reflects the changing seasons in Santa Fe, making each month uniquely captivating.
In Santa Fe, Argentina, January greets visitors with an average wind speed of 3.2 m/s (7 mph), setting the tone for a breezy summer month. Tucking behind January, both February and March experience a slight drop in wind speeds, settling at 2.7 m/s (6 mph)—the calmest winds of the year. As the seasons shift towards autumn in April and May, the winds gently rise again to around 3.1 to 3.2 m/s (7 mph), creating a pleasant atmosphere. However, the summer breezes pick up during the mid-year months of July and September, reaching their peak in September at 3.8 m/s (9 mph). This trend of fluctuating winds underscores the region's dynamic climate, with November closing the year on a higher note at 3.5 m/s (8 mph) before returning to the more tranquil December winds of 2.9 m/s (6 mph). Overall, the wind patterns reflect a delightful variety that adds to the charm of Santa Fe throughout the year.
Weather in Santa Fe varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Santa Fe, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February exhibit noticeable differences in weather patterns. January tends to be hotter, with temperatures ranging from a minimum of 13°C (55°F) to a sweltering maximum of 41°C (106°F), averaging around 26°C (78°F). In contrast, February sees slightly cooler temperatures, with a minimum of 11°C (51°F), an average of 24°C (76°F), and a maximum of 37°C (98°F). Precipitation is also reduced in February, dropping from 125 mm (4.9 in) over 7 days in January to only 61 mm (2.4 in) over the same number of days. Additionally, February experiences a slightly higher humidity level of 57% compared to January's 51%. For a more detailed look at February weather, visit Santa Fe weather in February.
January and March exhibit notable differences in weather patterns. January boasts warmer temperatures, with an average high of 41°C (106°F) and minimal humidity at 51%. However, it also sees a higher level of precipitation, totaling 125 mm (4.9 in) over 7 days. In contrast, March experiences cooler temperatures, averaging at 22°C (72°F) with a maximum of 36°C (97°F), while humidity increases to 65%. Precipitation is slightly lower in March, with 105 mm (4.1 in) across 8 days. For more details, check out Santa Fe weather in March.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 41°C (106°F) and an average of 26°C (78°F). The month experiences around 125 mm (4.9 in) of rainfall over 7 days, along with a humidity level of 51%. In contrast, April brings 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). The precipitation is slightly lower at 103 mm (4.1 in) over 8 days, but humidity rises considerably to 76%. For more detailed information on April weather, you can visit Santa Fe weather in April.
In January, the weather is characterized by significantly warmer temperatures, with a minimum of 13°C (55°F) and a scorching maximum of 41°C (106°F), alongside an average of 26°C (78°F). This month also sees notable precipitation, reaching 125 mm (4.9 in) over 7 days, while humidity remains relatively moderate at 51%. In contrast, May experiences much cooler conditions, with temperatures ranging from a chilly 1°C (34°F) to a comfortable maximum of 29°C (85°F), and an average of 15°C (60°F). Although May has lower precipitation at 83 mm (3.3 in) over the same number of rainy days, the humidity spikes to a higher level of 83%. For more details on May's weather, you can visit Santa Fe weather in May.
In January, the weather is characterized by high temperatures, with a minimum of 13°C (55°F) and an average of 26°C (78°F), peaking at a scorching 41°C (106°F). This month experiences significant rainfall, accumulating 125 mm (4.9 in) over about 7 days, all while maintaining a humidity level of 51%. In stark contrast, June brings a much cooler climate, featuring a minimum temperature of -1°C (31°F) and an average of 13°C (55°F), with a maximum of 27°C (81°F). Precipitation in June is considerably lower at 45 mm (1.8 in) across 5 days, accompanied by an increased humidity of 78%. This shift in weather patterns highlights the dramatic seasonal variations experienced in the region. For more detailed information, check Santa Fe weather in June.
January and July present stark contrasts in weather patterns. In January, temperatures soar with minimums around 13°C (55°F), averaging a warm 26°C (78°F) and peaking at a scorching 41°C (106°F), accompanied by considerable precipitation of 125 mm (4.9 in) over 7 days at a humidity of 51%. In contrast, July brings a much cooler climate, featuring minimum temperatures dropping to -2°C (29°F) and an average of only 12°C (53°F), with a maximum of 29°C (84°F). Precipitation is significantly lower at 36 mm (1.4 in) across just 4 days, and humidity slightly increases to 58%. For more detailed insights, you can check Santa Fe weather in July.
January and August present contrasting weather conditions. In January, temperatures soar with an average high of 41°C (106°F), while the month still experiences notable rainfall of 125 mm (4.9 in) over about 7 days. This month is characterized by a warm and humid climate, with humidity levels around 51%. Conversely, August brings cooler temperatures, with an average high of only 32°C (89°F) and a minimum dropping to 0°C (32°F). Precipitation is significantly lower at 27 mm (1.1 in) over just 4 days, and humidity slightly rises to 54%. For more details on August weather, visit Santa Fe weather in August.
In January, the weather is hot, with temperatures ranging from a minimum of 13°C (55°F) to a scorching maximum of 41°C (106°F), accompanied by 125 mm (4.9 in) of rainfall over about seven days, and a moderate humidity level of 51%. In contrast, September experiences much cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 35°C (95°F). Precipitation decreases to 51 mm (2.0 in) over five days, while humidity rises slightly to 59%. For more details on September weather, you can explore Santa Fe weather in September.
In January, temperatures in Santa Fe soar, with a minimum of 13°C (55°F) and an average high of 41°C (106°F), making it one of the hottest months of the year. The humidity sits at 51%, and the city experiences about 125 mm (4.9 in) of precipitation over seven days. In contrast, October offers a much cooler climate, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 37°C (100°F), and an average of 19°C (66°F). Precipitation slightly decreases to 108 mm (4.2 in) across eight days, while humidity remains comparable at 50%. For more insights into October's weather in Santa Fe, check out Santa Fe weather in October.
In comparing January and November, it is clear that January tends to experience significantly hotter temperatures, with maximums reaching up to 41°C (106°F) compared to November’s peak of 38°C (101°F). The average temperature in January is also higher, sitting at 26°C (78°F) versus November’s 22°C (72°F). However, November has slightly cooler minimum temperatures, starting at 9°C (48°F) compared to January’s 13°C (55°F). In terms of precipitation, January is wetter with 125 mm (4.9 in) over 7 days, whereas November has less rain, totaling 75 mm (2.9 in) over just 6 days. Humidity levels are quite similar, with November at 53% and January at 51%. For a more detailed look, check out Santa Fe weather in November.
In comparing the weather between January and December, January experiences slightly higher temperatures, with a minimum of 13°C (55°F) and a maximum reaching 41°C (106°F), compared to December's range of 10°C (51°F) to 38°C (101°F). The average temperature in January is also warmer at 26°C (78°F) versus December's 24°C (76°F). Additionally, January has more precipitation, totaling 125 mm (4.9 in) over 7 days, while December sees 97 mm (3.8 in) over the same number of days. Humidity levels are also higher in December at 57%, compared to January's 51%. For more detailed information, check out Santa Fe weather in December.
January in Santa Fe is marked by warm temperatures and relatively low humidity, making it a delightful time for outdoor activities. With average highs reaching a toasty 26°C, the month stands out as one of the warmest periods of the year, contrasting sharply with the cooler temperatures of other months. While January brings some rainy days, totaling around 125 mm of precipitation, these sporadic showers merely add a refreshing balance to the otherwise sunny days. This combination of warmth and moderate rainfall shapes a vibrant atmosphere, perfect for exploring the rich culture and natural beauty of the region. For a deeper dive into what to expect throughout the year, check out Santa Fe Climate.