Last updated: August 21, 2025
January in Mar del Plata, Argentina, offers a vibrant summer experience characterized by warm temperatures and moderate humidity. With maximum highs reaching a sizzling 34°C (93°F) and a comfortable average of 21°C (69°F), outdoor activities are in full swing. Visitors can expect cooler evenings, as temperatures dip to a minimum of 11°C (53°F). Although January is relatively dry, there is an average precipitation of 41 mm (1.6 in) spread over five days, ensuring the air remains fresh and invigorating. With humidity levels around 71%, it's the perfect time to enjoy the sun-soaked beaches and lively atmosphere of this coastal gem.
In January, Mar del Plata basks in the peak of summer, showcasing a pleasant average temperature of 21°C (69°F), with maximum highs reaching a sizzling 34°C (93°F). The city's coastal allure is evident as visitors enjoy balmy beach days, while minimum temperatures hover comfortably around 11°C (53°F). This delightful warmth begins to taper off in February, where the average drops slightly to 20°C (68°F), yet the vibrant energy of the summer season still prevails. As the months transition into autumn, temperatures gradually decline, with March seeing an average of 19°C (66°F) and cooler nights. By the time we reach April, the climate shifts further, signalling the end of summer as it cools to an average of 17°C (62°F). This gradual descent continues through the winter months, where temperatures can dip as low as 2°C (36°F) in July and August, contrasting sharply with the summer heat. Thus, Mar del Plata offers a unique seasonal experience, drawing visitors to its inviting beaches in January while beckoning the adventurous to explore its cooler charm by winter's embrace.
In January, Mar del Plata experiences relatively low precipitation with an average of 41 mm (1.6 in), marking one of the driest months of the year. Rainfall is infrequent, occurring on just 5 days, providing ample sunshine for beach-goers and outdoor activities. As summer progresses into February, precipitation spikes significantly to 108 mm (4.2 in) over 10 days, heralding a transition into the wetter season. This trend continues through March and April, where rain persists at 90 mm (3.5 in) and 91 mm (3.6 in), respectively, suggesting an increasing likelihood of precipitation as summer wanes. This seasonal pattern of initial dryness in early January followed by a notable uptick in rainfall reveals Mar del Plata's dynamic climate, enticing visitors with both warm days and refreshing showers as the summer unfolds.
In January, Mar del Plata experiences a moderate humidity level of 71%, setting the stage for a summer filled with coastal breezes. As the season transitions into February and March, humidity levels rise to 76%, creating a pleasantly muggy atmosphere perfect for beachgoers. This noticeable trend of increasing humidity continues into the autumn months, with April and May peaking at 79% and 80% respectively. Despite slight fluctuations in the summer and early winter months, with July and August dipping to 74% and 75%, the humidity remains consistently high, reflecting the coastal climate's influence. By the year's end in December, humidity recedes to 70%, offering a refreshing end to the year while hinting at the cyclical rise ahead.
In January, Mar del Plata experiences an extreme UV Index of 14, with a brisk burn time of just 10 minutes, emphasizing the need for sun protection. As the month progresses into February with a UV Index slightly reduced to 12, the exposure remains dangerously high. By March, the UV Index drops to 10, entering the very high category, but the quick burn time remains at 15 minutes. The transition into autumn reveals a notable decline; April sees a UV Index of 6, classified as high, allowing for a longer burn time of 25 minutes. This trend continues with May and June, where the indices settle at 4 and 3 respectively, reflecting moderate exposure and extended burn times of 30 minutes. As spring approaches in September, there’s a slight increase to a high category at 7, before peaking again in October with a very high index of 10. The year closes on a dramatic note with November reaching 12 and December at 13, reinforcing the extreme nature of summer sun in this coastal city. Protect yourself and stay informed by checking the full details at Mar del Plata UV Index.
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In January, Mar del Plata basks in an impressive 301 hours of sunshine, setting the tone for a summer filled with vibrant days. Following closely, February enjoys 314 hours, marking the peak of summer radiance before gradually transitioning into the mellow light of March, which still boasts a healthy 304 hours. As the seasons shift, the sunshine begins to wane, with April offering 249 hours and continuing to decrease through May with 230 hours and June at a cool 195 hours. However, as winter approaches, the sun starts to peek out more often again, slightly increasing with 204 hours in July before rising to 250 hours in August. The days grow longer once more, culminating in a bright November with 331 hours, and reaching its zenith in December with a delightful 381 hours of sunshine, capping off the year with warmth and cheer, making Mar del Plata a sun-seeker's paradise!
In Mar del Plata, January boasts a 56% chance of sunny weather, making it one of the more favorable months for sunshine. Interestingly, this sunny potential is closely rivaled by February at 55%, indicating a consistent warmth as summer peaks. However, as the season transitions into fall, the possibility of clear skies gradually declines, with March dropping to 49%. Notably, the trend resurges in April with a 60% chance, providing a brief return to brightness before dipping again in the cooler months of May and June. As we approach spring with October's 64%, the sunny disposition returns, highlighting a pattern where the summer months are generally sunnier, but warmth lingers into the early onset of fall and late spring.
In Mar del Plata, Argentina, January ushers in the longest days of the year with a generous 14 hours of daylight. As summer gives way to autumn, daylight gradually decreases, dropping to 13 hours in February and 12 hours in March. By the time April arrives, the days shorten further, leaving 11 hours of sunlight. This trend continues through the cooler months of May and June, where daylight dwindles to 10 and 9 hours respectively. Interestingly, July and August maintain that 9-hour mark before daylight begins to stretch again in September, climbing back to 11 hours. October sees a resurgence with 13 hours, and as the year closes, November and December return to 14 hours, showcasing the cyclical dance of light that characterizes this coastal city.
In January, Mar del Plata experiences an average wind speed of 6.0 m/s (13 mph), setting the tone for a breezy summer climate. This month stands out with a slightly gustier breeze compared to the following weeks, as February's wind calms to 5.6 m/s (12 mph) and continues to mellow through March and April at 5.3 m/s (12 mph). Winds tend to pick up again as the seasons transition, with May showcasing a notable increase at 6.3 m/s (14 mph). The pattern persists into July, where the winds are equally brisk at 6.2 m/s (14 mph), hinting at the seasonal shifts. However, by August, a significant dip occurs with average gusts dropping to 4.8 m/s (11 mph), suggesting a more tranquil late winter. As the year closes, the wind speeds return to a more moderate pace, rounding out the year with values similar to January, oscillating between 5.2 m/s (12 mph) in October and December to a stable 6.0 m/s (13 mph) in November, creating a rhythmic dance of breezes that characterizes the coastal charm of this Argentine city.
Weather in Mar del Plata varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Mar del Plata, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, both months exhibit relatively warm temperatures, with January having a slightly higher average temperature of 21°C (69°F) compared to February's 20°C (68°F). The maximum daytime temperatures are also higher in January, reaching up to 34°C (93°F), while February peaks at 30°C (87°F). However, February experiences significantly more rainfall, with 108 mm (4.2 in) of precipitation over 10 days, in contrast to January's 41 mm (1.6 in) over just 5 days. The humidity levels also rise slightly in February to 76%, compared to January’s 71%. For more detailed information about February's weather, you can visit Mar del Plata weather in February.
In January, the weather features a warm average temperature of 21°C (69°F), with daytime highs reaching up to 34°C (93°F). However, it is generally drier, experiencing only 41 mm (1.6 in) of precipitation over approximately five days and a humidity level of 71%. In contrast, March is cooler with an average temperature of 19°C (66°F) and maximums of 28°C (82°F). It also sees increased rainfall, totaling 90 mm (3.5 in) across about nine days, alongside a rise in humidity to 76%. For more detailed insights, you can check Mar del Plata weather in March.
January typically has warmer temperatures compared to April, with an average high of 34°C (93°F) and minimal precipitation of 41 mm (1.6 in) over just 5 days. In contrast, April experiences cooler conditions, with an average temperature peaking at 25°C (78°F) and significantly higher rainfall of 91 mm (3.6 in) across 8 days. Additionally, humidity levels increase slightly in April, reaching 79% compared to January’s 71%. For a closer look at April's weather, check out Mar del Plata weather in April.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), providing an average temperature of 21°C (69°F). The humidity sits at a comfortable 71%, with 41 mm (1.6 in) of precipitation over about 5 days. In contrast, May experiences cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 22°C (72°F), averaging just 13°C (56°F). The humidity increases to 80%, and precipitation also rises to 53 mm (2.1 in) over 7 days. For a more detailed look at the weather during this month, check out Mar del Plata weather in May.
In January, Mar del Plata experiences warm weather with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), averaging around 21°C (69°F). The month sees relatively low precipitation, totaling 41 mm (1.6 in) over about 5 days, accompanied by a humidity level of 71%. In contrast, June brings cooler temperatures with a minimum of 3°C (38°F) and a maximum of 19°C (67°F), averaging only 11°C (52°F). This month experiences higher rainfall, totaling 63 mm (2.5 in) over 8 days, and slightly increased humidity at 79%. For more details, you can check out Mar del Plata weather in June.
In January, the weather is warm and inviting, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F) and an average of around 21°C (69°F). The month experiences relatively low precipitation at 41 mm (1.6 in) over just 5 days, while humidity sits at a comfortable 71%. In contrast, July offers a much cooler climate, with temperatures dropping significantly to a minimum of 2°C (36°F) and a maximum of 18°C (65°F), averaging only 9°C (49°F). Precipitation increases in July to 72 mm (2.8 in) over 10 days, and the humidity rises slightly to 74%. For more details on July's weather in Mar del Plata, check out Mar del Plata weather in July.
The weather in January is considerably warmer than in August, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), and an average of 21°C (69°F). In contrast, August sees much cooler temperatures, with a minimum of 2°C (36°F), an average of 10°C (50°F), and a maximum of 20°C (68°F). While January experiences less precipitation at 41 mm (1.6 in) over 5 days, August has a slightly higher precipitation level of 49 mm (1.9 in) spread across 7 days, contributing to a higher humidity of 75%. For more details, you can check Mar del Plata weather in August.
In January, the weather is considerably warmer, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), creating an average temperature of 21°C (69°F). The humidity is moderate at 71%, and rainfall is light at 41 mm (1.6 in) over about 5 days. In stark contrast, September brings cooler temperatures, with a maximum of only 21°C (70°F) and a minimum dropping to 4°C (39°F), yielding an average temperature of just 11°C (52°F). Precipitation increases to 60 mm (2.4 in) and occurs over 7 days, accompanied by higher humidity levels at 79%. For more details on September weather, check out Mar del Plata weather in September.
In January, Mar del Plata experiences warmer temperatures, with a minimum of 11°C (53°F) and a maximum reaching up to 34°C (93°F), accompanied by an average temperature of 21°C (69°F). The month also sees relatively low precipitation at 41 mm (1.6 in) over 5 days, combined with a humidity level of 71%. In contrast, October brings cooler weather, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 25°C (78°F) and an average of 13°C (56°F). This month also experiences increased precipitation, totaling 84 mm (3.3 in) over 9 days, and slightly higher humidity at 76%. For more details, you can check Mar del Plata weather in October.
January and November exhibit notable differences in weather patterns. In January, temperatures are generally warmer, with a minimum of 11°C (53°F), an average of 21°C (69°F), and a maximum of 34°C (93°F). The month experiences less precipitation, with only 41 mm (1.6 in) over approximately 5 days, and humidity levels around 71%. In contrast, November sees cooler temperatures, with a minimum of 8°C (46°F), an average of 16°C (61°F), and a maximum of 27°C (81°F). It also experiences more rainfall, totaling 70 mm (2.7 in) over 9 days, alongside slightly higher humidity at 74%. For a closer look at the November weather in Mar del Plata, you can visit Mar del Plata weather in November.
In comparing the weather conditions of January and December, January generally presents warmer temperatures, with a minimum of 11°C (53°F) and a maximum of 34°C (93°F), while December sees cooler temperatures ranging from 8°C (46°F) to 31°C (88°F). The average temperature in January is also higher at 21°C (69°F) compared to December's 18°C (65°F). Additionally, January experiences less precipitation, with 41 mm (1.6 in) over 5 days, in contrast to December's 67 mm (2.6 in) spread across 9 days. Despite the slight difference in humidity, both months remain relatively humid, with January at 71% and December at 70%. For more detailed insights, you can explore Mar del Plata weather in December.
January in Mar del Plata brings a delightful blend of warmth and vibrancy, making it a stark contrast to the cooler months. With maximum temperatures soaring up to 34°C, this month stands out as a peak summer period, inviting beachgoers and sun seekers alike. While the average temperature remains a comfortable 21°C, the occasional dip to a refreshing 11°C offers a welcome respite from the heat. Humidity levels around 71% add to the tropical feel, but visitors can expect only a few days of light precipitation, which rarely disrupts the sun-soaked days. Overall, January's weather sets the stage for lively outdoor adventures and unforgettable seaside experiences, making it a prime time to explore the region. For a comprehensive look at what to expect throughout the year, check out Mar del Plata Climate.