Last updated: August 21, 2025
January in Santa Rosa, Argentina brings a vibrant blend of warmth and humidity, with temperatures reaching a maximum of 43°C (109°F) and an average of 28°C (82°F). As the summer sun shines brightly, the minimum temperature dips to a pleasant 15°C (58°F), providing relief during cooler evenings. However, this month also witnesses 169 mm (6.6 in) of precipitation over approximately 10 days, adding a refreshing element to the otherwise hot season. Humidity levels hover around 66%, enhancing the characteristic sultry summer atmosphere of the region. Enjoy this dynamic weather as it sets the stage for a lively Argentine summer!
In Santa Rosa, Argentina, January marks the peak of summer with temperatures that can soar up to a sizzling 43°C (109°F). The month kicks off with a mild minimum of 15°C (58°F) and offers an average warmth of 28°C (82°F), making it ideal for outdoor fun. As summer transitions into February, there's a slight cooling trend, with the average dipping to 26°C (80°F), and maximums reaching 42°C (107°F). Throughout the months, temperatures gradually decline, with March seeing a further drop in averages to 24°C (76°F), while the minimums flirt with cooler readings. By the time April arrives, Santa Rosa enjoys more moderate conditions, transitioning into the cooler seasons with little extremes — minimums can drop to 8°C (46°F), and averages settle at 22°C (71°F). This trend of retreating heat continues into winter months, illustrating a notable decrease, especially as the minimums plummet to 0°C (32°F) in July and August. Overall, the year unfolds a captivating temperature trajectory, painting a vibrant picture of Santa Rosa's diverse climate.
January in Santa Rosa, Argentina, marks the peak of precipitation with a substantial total of 169 mm (6.6 in) over approximately 10 days of rain. This month sets a vibrant tone for the summer season, featuring the highest rainfall compared to other months. Following January, February sees a sharp decline, dropping to 71 mm (2.8 in), which indicates a transition to drier weather. As the year progresses, March experiences a slight rebound with 144 mm (5.7 in), but the overall trend reveals a gradual reduction in precipitation, particularly noticeable in the winter months where July records a minimal 40 mm (1.6 in) over just 5 days. This pattern highlights January not only as the wettest month but also as a pivotal period that shapes the region's seasonal dynamics.
In January, Santa Rosa, Argentina, experiences a moderate humidity level of 66%, making it a relatively comfortable time of year. As the season progresses into February, humidity dips slightly to 61%, offering a brief respite before the levels begin to rise again. By March, the humidity escalates to 71%, signaling the transition into the wetter months. This trend continues into April and May, where humidity peaks at 81% and 84%, respectively, creating a distinctly humid environment. A gradual decline occurs in June to 76%, followed by a refreshing drop to 64% in July, representing one of the more comfortable months of the year. However, the humidity takes a noticeable dip to its yearly low of 46% in August, before inching back up through the late months. As the year winds down, September sees a modest 55%, and October and November hover around the 57-59% range, ultimately rising again to 75% in December, setting the stage for the humid summer ahead. This cyclical pattern showcases Santa Rosa's dynamic climate, balancing comfort with humidity throughout the year.
In January, Santa Rosa, Argentina, experiences a staggering UV Index of 15, classified as extreme, which means that skin can burn in just 10 minutes of unprotected sun exposure. This trend of high UV levels continues into February and March, with indices of 13 and 12 respectively, maintaining the same burn time, indicating that outdoor activities demand caution during these peak summer months. By April, the UV Index drops slightly to 10, categorized as very high, allowing for a marginally longer burn time of 15 minutes. As the seasons shift, the UV Index gradually declines; however, it remains a significant concern through October, reaching 12, before declining to a more moderate 6 by May and June. Interestingly, still high UV levels can be observed in November and December, both again pushing the needle to 14, suggesting that sun safety remains paramount year-round. To stay informed about UV conditions, check out Santa Rosa UV Index.
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In January, Santa Rosa basks in an impressive 274 hours of sunshine, setting the stage for a warm and vibrant start to the year. As summer continues, February and March shine even brighter, boasting 313 and 314 hours respectively, making these months perfect for outdoor adventures. However, as autumn approaches, the hours gradually taper off, with April and May witnessing a notable decline to 272 and 233 hours. The trend continues into the winter months, dipping to 223 hours in June before rebounding slightly in July at 241 hours. Late winter and early spring see a resurgence in sunshine, particularly in October with 298 hours and peaking in November at 324 hours. By the end of the year, Santa Rosa closes with a stunning 376 hours in December, wrapping up a year filled with fluctuating yet abundant sunshine.
In January, Santa Rosa, Argentina experiences a 52% chance of sunny weather, making it a promising start to the year. While this figure is notably lower than the sunniest months in the late summer and early fall—like February, with a 67% chance, and August, soaring to 71%—it still holds its own among the other months. As the year progresses, the likelihood of sunshine ebbs and flows, but it's intriguing to note that the chance remains consistent with both March and November, also at 52%, suggesting that sunny days are a bit more sporadic at the start and end of the year. The overall trend showcases a gradual increase in sunny weather as summer wanes, peaking in late summer and early fall before tapering off into the cooler months. This makes January an ideal time for those who enjoy a mix of warmth with a fair share of sunshine!
In Santa Rosa, Argentina, January ushers in the peak of summer with a generous 13 hours of daylight, mirroring February's brightness. As autumn sets in during March, daylight gracefully diminishes to 12 hours, transitioning into more subdued hours through April and May, where daylight drops to 11 and 10 hours respectively. This pattern of shorter days continues into the winter months of June and July, which consistently feature 10 hours of daylight. However, as spring approaches in August, the days begin to lengthen again, reaching 11 hours before gradually increasing back to 12 hours in October. By the time December rolls around, Santa Rosa's daylight returns to its summer peak, bringing full circle the yearly cycle of light and dark, with 13 hours illuminating the skies once more.
In January, the winds in Santa Rosa, Argentina, embrace a gentle breeze, averaging 3.7 m/s (8 mph). This month stands out as the windiest in the summer season, as the wind speeds gradually taper off into February and March, both recording a steadier 3.1 m/s (7 mph). Following this, a slight resurgence is noted in May and June, where speeds climb back to 3.5 m/s (8 mph) and 3.6 m/s (8 mph), hinting at an invigorating shift as autumn approaches. As the year progresses into the fall months, wind speeds fluctuate but generally remain consistent, culminating in September with a breezy 4.3 m/s (10 mph) before settling into the late year. This pattern illustrates how the winds of Santa Rosa play a dynamic role in shaping the local climate, offering a refreshing contrast between the warmer summer days and the cooler autumn evenings.
Weather in Santa Rosa varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Santa Rosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
Comparing the weather in January and February reveals some notable differences. January experiences higher average temperatures, ranging from a minimum of 15°C (58°F) to a maximum of 43°C (109°F), while February shows a slight decline with temperatures ranging from 13°C (55°F) to 42°C (107°F). Precipitation in January is considerably higher at 169 mm (6.6 in) over approximately 10 days, compared to February's more moderate 71 mm (2.8 in) over 8 days. Additionally, February boasts lower humidity levels at 61%, compared to January’s 66%. For more detailed information about the weather in February, you can check out Santa Rosa weather in February.
In comparing the weather between January and March, January offers significantly higher maximum temperatures, reaching up to 43°C (109°F), while March peaks at a cooler 40°C (104°F). The average temperature in January is also warmer at 28°C (82°F) compared to March's 24°C (76°F). Precipitation levels are slightly higher in January, with 169 mm (6.6 in) over 10 days, compared to March's 144 mm (5.7 in) over 9 days. Additionally, humidity sees a slight increase in March, averaging at 71% compared to January's 66%. For more detailed information, you can check Santa Rosa weather in March.
In January, temperatures soar with a minimum of 15°C (58°F) and can reach highs of 43°C (109°F), resulting in an average temperature of 28°C (82°F). This month sees significant rainfall, with 169 mm (6.6 in) of precipitation over 10 days and a humidity level of 66%.
In contrast, April presents a much cooler climate, with minimum temperatures dropping to 8°C (46°F) and maximums reaching 35°C (95°F), averaging 22°C (71°F). The precipitation is also lower at 130 mm (5.1 in) over just 7 days, while humidity rises to 81%. For a deeper look at the conditions during this month, you can refer to Santa Rosa weather in April.
In January, the weather is characterized by much higher temperatures, with averages around 28°C (82°F) and maximums soaring up to 43°C (109°F). This month also sees significant precipitation, totaling 169 mm (6.6 in) over about 10 days, and humidity levels at a moderate 66%. In contrast, by May, temperatures drop considerably, averaging 18°C (64°F) with a maximum of 32°C (89°F) and a minimum of just 5°C (41°F). Although May experiences less precipitation at 129 mm (5.1 in) over the same number of rainy days, the humidity rises to a higher 84%, creating a different feel to the weather. For more detailed information, you can check Santa Rosa weather in May.
January and June present contrasting weather conditions. In January, temperatures range from a minimum of 15°C (58°F) to a scorching maximum of 43°C (109°F), with an average of 28°C (82°F). This month experiences significant rainfall, with 169 mm (6.6 in) spread over 10 days and humidity hovering around 66%. On the other hand, June sees cooler temperatures, with a minimum of 2°C (35°F), an average of 16°C (61°F), and a maximum of 32°C (89°F). Precipitation drops to 66 mm (2.6 in) over 8 days, and the humidity increases slightly to 76%. For a detailed look at the weather in June, you can visit Santa Rosa weather in June.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 15°C (58°F) to a scorching maximum of 43°C (109°F), and an average of 28°C (82°F). This month also sees considerable rainfall, with a total precipitation of 169 mm (6.6 in) over about 10 days, while humidity levels hover around 66%. In contrast, July experiences much cooler conditions, with temperatures dipping to a minimum of 0°C (32°F) and peaking at a maximum of 32°C (91°F), averaging only 15°C (60°F). Rainfall is minimal in July, totaling just 40 mm (1.6 in) over 5 days, with slightly lower humidity at 64%. For more information on July weather, visit Santa Rosa weather in July.
In January, the weather is characterized by higher temperatures, with average lows around 15°C (58°F) and scorching highs reaching up to 43°C (109°F). This month also experiences significant rainfall, totaling 169 mm (6.6 in) over about 10 days, along with a humidity level of 66%. In contrast, August is much cooler, with temperatures ranging from a minimum of 0°C (32°F) to an average of 17°C (63°F) and highs peaking at 37°C (99°F). Precipitation is markedly lower in August, totaling only 47 mm (1.9 in) over five days and a reduced humidity of 46%. For more specific weather information for this month, you can visit Santa Rosa weather in August.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 15°C (58°F) to a scorching maximum of 43°C (109°F) and an average temperature of 28°C (82°F). Additionally, January sees more precipitation, totaling 169 mm (6.6 in) over about 10 days, accompanied by a higher humidity level of 66%. In contrast, September presents a much cooler climate, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 39°C (102°F) and an average of 20°C (68°F). The month receives less rainfall, with 104 mm (4.1 in) falling on about 9 days and a lower humidity of 55%. For more detailed weather information, you can visit Santa Rosa weather in September.
In January, temperatures soar with a minimum of 15°C (58°F) and a peak of 43°C (109°F), while October offers a milder climate with a minimum of 10°C (50°F) and maximum of 41°C (107°F). The average temperature in January is notably warmer at 28°C (82°F) compared to October's 22°C (72°F). Additionally, January experiences higher precipitation levels at 169 mm (6.6 in), occurring over 10 days, whereas October sees only 106 mm (4.2 in) during the same number of days. Humidity is also higher in January at 66%, contrasting with October's 57%. For more details on the October climate, you can explore Santa Rosa weather in October.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 15°C (58°F) to a scorching maximum of 43°C (109°F), while averaging around 28°C (82°F). This month also sees a higher level of precipitation at 169 mm (6.6 in) over approximately 10 days, accompanied by higher humidity at 66%. In contrast, November presents milder conditions, with temperatures varying from a minimum of 11°C (52°F) to a maximum of 40°C (104°F) and a comfortable average of 25°C (76°F). Precipitation in November is somewhat lower at 136 mm (5.4 in) over 8 days, and humidity is less intense at 59%. For more detailed information, check out Santa Rosa weather in November.
In comparing the weather between January and December, January tends to be warmer overall, with average temperatures reaching 28°C (82°F) compared to December's average of 26°C (80°F). January also sees higher maxima, peaking at 43°C (109°F), while December has a maximum of 40°C (104°F). Precipitation levels in January are notably higher at 169 mm (6.6 in) over 10 days, compared to December's 113 mm (4.5 in) across 7 days. Additionally, December experiences slightly higher humidity levels at 75%, while January has a humidity of 66%. For more information about December weather specifically, visit Santa Rosa weather in December.
In January, Santa Rosa experiences a distinct shift in weather, characterized by its warm temperatures and notable humidity levels that create a vibrant summer atmosphere. Unlike the cooler months, the maximum heat can soar to a sizzling 43°C, significantly influencing daily life and outdoor activities. While rainfall does occur, with about 10 rainy days, it’s the heat combined with 66% humidity that underscores January's uniqueness, making it a month of contrasts. For a deeper dive into the climatic nuances of Santa Rosa, be sure to check out Santa Rosa Climate.