Last updated: August 21, 2025
In Ushuaia, Argentina, January presents a captivating blend of mild temperatures and notable precipitation. The maximum temperature can reach a pleasant 20°C (69°F), while the average hovers around a cool 8°C (47°F), dipping to a chilly minimum of -1°C (31°F) at night. Visitors can anticipate 102 mm (4.0 in) of rainfall over 22 days, contributing to the region's lush landscapes. With an average humidity of 83%, the air feels fresh yet damp, making January a vibrant time to experience the unique charm of this southernmost city.
In Ushuaia, Argentina, January stands out as a vibrant summer month, boasting temperatures that invite exploration and adventure. With a minimum of -1°C (31°F), an average of 8°C (47°F), and a pleasant maximum of 20°C (69°F), it offers a refreshing contrast to the harsher winter months that follow. As the season progresses into February, temperatures rise slightly, reaching up to 24°C (75°F), but a noticeable chilling begins in March, signaling the transition to autumn as averages dip to 7°C (44°F). The trend continues through the subsequent months as Ushuaia's climate shifts dramatically, with minimum temperatures plunging into the negative, peaking in July, where lows hit -11°C (13°F). By spring, the city gradually warms again, hinting at the upcoming summer with November's highs approaching 18°C (65°F). This striking contrast between the brief summer months and the lengthy winter lull captivates visitors with Ushuaia's unique charm and rugged beauty.
In Ushuaia, Argentina, January marks the peak of summer, with precipitation amounting to 102 mm (4.0 in) over an average of 22 days. This is indicative of a trend toward wetness, as the region experiences frequent rainfall during the month. However, this is not an outlier, as March also shares the same precipitation figure, hinting at a sustained pattern through the early months of the year. Comparatively, February sees a slight decrease, with 91 mm (3.6 in) over 18 days. As the seasons transition, a gradual decline in precipitation is evident, leading down to the cooler, drier months of June and July. Therefore, while January encapsulates the essence of summer with ample rainfall, it sets the stage for a dynamic precipitation cycle that characterizes Ushuaia throughout the year.
In Ushuaia, Argentina, January marks the beginning of a subtle but consistent trend in humidity levels, averaging a relatively high 83%. This moisture lingers throughout the summer months, with February and March experiencing slightly elevated humidity at 85%. As autumn arrives, humidity levels continue to creep upward, peaking at 86% from April through June. Interestingly, this pattern stabilizes as winter sets in, maintaining similar humidity levels until August. As spring approaches, a gradual decline is observed, with December recording the lowest humidity of the year at 82%. This observation highlights Ushuaia's humid maritime climate, where moisture plays a significant role in shaping the region's unique weather dynamics throughout the year.
In Ushuaia, Argentina, January signals the peak of summer with a UV Index of 10, categorized as very high, where a brief exposure of just 15 minutes can lead to skin burns. This trend of intense sun continues into February but gradually declines, with the UV Index dropping to 8 while still maintaining a very high risk. As autumn approaches, the UV Index sees a notable decrease, falling to 6 in March (high exposure) and settling at 3 in April (moderate exposure), allowing safer sun enjoyment for longer periods. By mid-year, the index dips to its lowest levels in May and June, reaching 2 and 1, respectively, indicating low exposure risk where you can bask in the sun for up to 45 minutes. However, as the calendar turns toward the year's end, the UV Index surges again, showcasing extreme levels of 12 in November and 11 in December. For more insights on how to navigate the sun's intensity throughout the year, check out the complete guide at Ushuaia UV Index.
UV Risk Categories
In Ushuaia, Argentina, January ushers in a vibrant burst of sunshine, boasting 224 hours of daylight, making it one of the sunniest months of the year. As summer progresses, February sees a slight increase to 225 hours, offering even more opportunities to soak up the sun. However, as autumn approaches, the hours gradually decline, with March experiencing 201 hours before plunging to 162 hours in April. The trend continues downward through the colder months, reaching a low of 85 hours in June. Yet, as winter gives way to spring, the daylight starts to return, climbing steadily through 154 hours in August, and culminating in a stunning 310 hours by December. This cyclical pattern of sunshine not only illuminates Ushuaia's stunning landscapes but also enhances the region's charm and allure throughout the seasons.
In Ushuaia, Argentina, January is one of the more promising months for sunny weather, boasting a 27% chance of sunshine. This marks a slight uptick compared to February and March, which see chances drop to 25% and 26% respectively. As summer progresses into autumn, the likelihood of sunny days diminishes, with May presenting only a 21% chance. The trend continues downward through winter months, reaching a low of 11% in June. However, as spring approaches in September, hope is rekindled with a 29% chance of sun, peaking at 33% in December. Thus, while January offers decent sunshine, the fluctuating patterns remind visitors to keep their expectations flexible as they explore this beautiful southernmost city.
In Ushuaia, Argentina, January shines as the peak of summer with 16 hours of daylight, inviting residents and visitors alike to bask in the sun. As February rolls in, this golden light begins to wane, dropping to 14 hours, hinting at the approach of autumn. By March, daylight diminishes further to 12 hours, transitioning into the cooler months where April offers just 10 hours of daylight. The trend continues into the winter months of May and June, where daylight shrinks to 8 and 7 hours, respectively, providing a stark contrast to the long, luminous days of summer. Though July maintains this brief daylight, August brings a slight revival with 9 hours as the days start to lengthen again. The gradual increase continues into September and October, culminating in a 16-hour daylight return in November, before December peaks at 17 hours. This rhythmic cycle of daylight throughout the year not only defines Ushuaia's seasons but also shapes the activities and experiences of its vibrant community.
In Ushuaia, Argentina, January greets visitors with a gentle breeze, boasting an average wind speed of 3.0 m/s (7 mph). This refreshing airflow is a delightful precursor to the slight decline in windiness noted in February and March, where speeds dip to 2.8 m/s and 2.9 m/s, respectively. As autumn sets in from April through June, the winds mellow further, reaching a minimum of 1.9 m/s (4 mph) in June. However, just when you thought the calm would reign, the winds pick up again later in the year, with October and November each returning to 3.2 m/s (7 mph). This seasonal dance of gentle breezes and stronger gusts creates a dynamic, ever-changing atmosphere, perfect for exploring the stunning landscapes that Ushuaia has to offer.
Weather in Ushuaia varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Ushuaia, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather between January and February, both months exhibit similar average temperatures, hovering around 8°C (47°F). January tends to be slightly warmer, with a maximum temperature of 20°C (69°F), while February can reach up to 24°C (75°F). Precipitation also varies slightly, with January receiving 102 mm (4.0 in) over 22 days, compared to February's 91 mm (3.6 in) over 18 days. Humidity remains consistent, with January at 83% and February at 85%. For a more detailed look at February's weather, you can explore Ushuaia weather in February.
In January, the weather in Ushuaia is relatively mild, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 20°C (69°F) and an average of 8°C (47°F). The month sees a moderate level of precipitation, totaling 102 mm (4.0 in) across 22 days, and humidity levels hover around 83%.
In contrast, March features slightly cooler temperatures, with a minimum of -3°C (28°F), an average of 7°C (44°F), and a maximum of 17°C (62°F). Precipitation remains the same at 102 mm (4.0 in) but occurs over just 19 days, while humidity increases to 85%.
For a detailed forecast of March weather, you can visit Ushuaia weather in March.
When comparing the weather in January and April, there are notable differences in temperature and precipitation. January typically presents milder conditions with an average temperature of 8°C (47°F), fluctuating between a minimum of -1°C (31°F) and a maximum of 20°C (69°F). In contrast, April registers cooler temperatures, with an average of 4°C (40°F), dipping to -7°C (19°F) at night and peaking at 17°C (63°F) during the day. Precipitation is also less in April, totaling 75 mm (2.9 in) over 18 days, compared to January's 102 mm (4.0 in) across 22 days. Both months exhibit high humidity, with January at 83% and April slightly higher at 86%. For a more detailed look at April's weather, you can check Ushuaia weather in April.
In comparing the weather between January and May, January tends to be milder with average temperatures ranging from -1°C (31°F) to a maximum of 20°C (69°F), while May experiences cooler conditions with temperatures averaging between -11°C (13°F) and 11°C (53°F). Precipitation levels are also higher in January, totaling 102 mm (4.0 in) over 22 days, compared to May's 66 mm (2.6 in) across 15 days. Additionally, humidity remains relatively high in both months, with January at 83% and May slightly higher at 86%. For more detailed information on May weather, check Ushuaia weather in May.
In January, Ushuaia experiences relatively mild temperatures, with an average of 8°C (47°F) and maximums reaching up to 20°C (69°F). The month sees significant precipitation, with 102 mm (4.0 in) falling over 22 days, contributing to a humid atmosphere with a humidity level of 83%. In contrast, June is much colder, with average temperatures dropping to -1°C (30°F) and maximums only reaching 6°C (43°F). Precipitation is lighter during this month, totaling 46 mm (1.8 in) over 14 days, while the humidity slightly increases to 86%. For more detailed insights, check out Ushuaia weather in June.
In January, Ushuaia experiences milder temperatures, with an average of 8°C (47°F) and maximums reaching up to 20°C (69°F), making it a pleasant summer month. In contrast, July sees much colder weather, with average temperatures dropping to -1°C (30°F) and highs only reaching 7°C (45°F). While January has more precipitation at 102 mm (4.0 in) over 22 days, July is relatively drier, with 51 mm (2.0 in) spread over 14 days. Humidity remains high in both months, at 83% in January and 85% in July, contributing to the chill in mid-winter. For more detailed information on July weather, check out Ushuaia weather in July.
In January, Ushuaia experiences milder weather with average temperatures ranging from a minimum of -1°C (31°F) to a comfortable maximum of 20°C (69°F), making it a relatively warm month for the region. The humidity sits at 83% with a total precipitation of 102 mm (4.0 in) spread over 22 days. In contrast, August shows a significant drop in temperatures, with an average ranging from a minimum of -12°C (11°F) to a maximum of 7°C (45°F). Although August sees slightly less precipitation at 79 mm (3.1 in) over 18 days, the humidity remains high at 85%. For a more detailed look at the weather conditions in August, check Ushuaia weather in August.
January and September in Ushuaia present contrasting weather patterns. In January, temperatures range from a minimum of -1°C (31°F) to a maximum of 20°C (69°F), with averages around 8°C (47°F). The month sees considerable precipitation, totaling 102 mm (4.0 in) over 22 days, and maintains a high humidity level of 83%. In contrast, September offers cooler weather, with temperatures dipping to a minimum of -11°C (12°F) and peaking at 10°C (51°F), averaging around 1°C (34°F). Precipitation is lower at 64 mm (2.5 in) over 16 days, and humidity remains slightly elevated at 84%. For more detailed insights into the September climate, visit Ushuaia weather in September.
In January, temperatures in Ushuaia range from a minimum of -1°C (31°F) to a maximum of 20°C (69°F), with an average of 8°C (47°F). This month experiences a higher precipitation total of 102 mm (4.0 in) over 22 days, maintaining a consistent humidity of 83%. In contrast, October sees cooler temperatures, with lows of -8°C (18°F) and highs of just 14°C (58°F), averaging at 3°C (38°F). Precipitation decreases to 71 mm (2.8 in) over 19 days, yet humidity remains steady at 83%. For more details on October conditions, check out Ushuaia weather in October.
In January, the weather in Ushuaia exhibits milder temperatures with an average of 8°C (47°F) and a maximum reaching 20°C (69°F), compared to the cooler November, where the average temperature is slightly lower at 6°C (43°F) and a maximum of 18°C (65°F). Precipitation levels are higher in January, with 102 mm (4.0 in) recorded over 22 days, whereas November sees 86 mm (3.4 in) over 21 days. Additionally, January has a humidity level of 83%, just slightly lower than November's 84%, indicating that both months are characterized by a relatively moist and cool climate. For more specific details, you can check Ushuaia weather in November.
In comparing the weather conditions of January and December, January tends to be slightly warmer, with an average temperature of 8°C (47°F) compared to December’s 8°C (46°F). The maximum temperatures reach up to 20°C (69°F) in January, just above December’s high of 19°C (66°F). Precipitation levels are quite similar, with January receiving 102 mm (4.0 in) over 22 days, while December sees 99 mm (3.9 in) across 23 days. Humidity remains fairly consistent, with January at 83% and December at 82%. For more detailed information, you can visit Ushuaia weather in December.
In January, Ushuaia experiences a unique blend of mild temperatures and high humidity, making it distinct from other months. With daily highs reaching up to 20°C, the weather offers a refreshing contrast to the cooler winter months. However, travelers should be prepared for frequent rain, as January sees around 22 days of precipitation, totaling 102 mm. This combination creates a lush, vibrant landscape, perfect for outdoor adventures. For a deeper dive into Ushuaia's climate patterns and seasonal variations, be sure to check out Ushuaia Climate.