Last updated: January 18, 2025
Río Negro, Uruguay, is characterized by a Cfa climate according to the Köppen-Geiger classification, indicating a humid subtropical environment. The region experiences a striking temperature range, with minimums plummeting to -3°C (27°F) in July and soaring to a scorching 42°C (108°F) in January. The annual average temperature rests around 18°C (65°F), reflecting the diverse climatic conditions that define this unique area. These temperature extremes underscore the region's variability, presenting an intriguing subject for climate studies in subtropical environments.
Río Negro, Uruguay, exhibits distinct seasonal temperature patterns, characterized by warm summers and cool winters. In January, temperatures peak, with minimums around 13°C (55°F) and maximums reaching a sweltering 42°C (108°F), while February shows only a slight drop as average temperatures linger at 24°C (75°F). As autumn approaches in March and April, temperatures gradually decline, with averages dipping to 22°C (71°F) and 19°C (67°F) respectively. The transition into winter is marked by cooler conditions, particularly in July, when temperatures can fall to -3°C (27°F) at night, accompanied by an average of 11°C (53°F). By the end of the year, December sees a return to milder conditions, with averages rising to 24°C (75°F), illustrating the region's climatic variability throughout the months.
In Algorta, July temperatures range from a minimum of -3°C (27°F) to a maximum of 42°C (107°F) in January, while San Javier sees a slightly milder minimum of -2°C (28°F) in July, with the same peak of 42°C (108°F) in January. Similarly, Fray Bentos also records a July minimum of -2°C (29°F) and spikes to 42°C (107°F) in January. For detailed monthly temperatures, you can refer to the links for Algorta, San Javier, and Fray Bentos.
Precipitation in Río Negro, Uruguay, displays a noteworthy pattern throughout the year, heavily influenced by seasonal changes. The wettest months occur in the summer, with January receiving 119 mm (4.7 in) of rain over an average of 7 days, followed closely by February at 101 mm (4.0 in) across 6 days. As the seasons transition into autumn, rainfall gradually decreases, with March and April recording 93 mm (3.7 in) and 92 mm (3.6 in) respectively, indicating a shift towards drier conditions.
During the winter months, precipitation levels further decline, particularly in July, which sees only 62 mm (2.4 in) over 6 days. However, the trend toward increased rainfall resumes with the arrival of spring in September and October, featuring 108 mm (4.3 in) and 106 mm (4.2 in) respectively, often bringing wetter weather with up to 9 days of rain in October. Overall, the precipitation patterns underscore the seasonal variability that defines the climate of the region, highlighting the marked differences between the wetter summer months and the drier winter period.
In Río Negro, Uruguay, sunshine duration displays a clear seasonal trend, with significant increases from winter to summer months. January marks one of the peaks with 292 hours of sunlight, while February further elevates this to 319 hours, making it the sunniest month overall. The trend continues with March almost maintaining those high levels at 316 hours, showcasing a robust summer season that is rich in sunlight. This extended period of brightness not only enhances the region's warmth but also supports agriculture and outdoor activities, making these months particularly appealing for residents and visitors alike.
As the seasons transition into autumn and winter, a notable decline in sunshine hours occurs. April sees a drop to 269 hours, and by May, sunlight wanes further to 228 hours. The darkest months arrive in June, with just 214 hours of sunshine, signaling the winter chill. A gradual recovery begins in August, with sunlight climbing to 264 hours, suggesting a slow transition back to longer days and warmer weather. Notably, November and December emerge as exceptionally bright months, culminating in 344 hours and 383 hours of sunshine respectively, indicating a return to the vibrant, sun-drenched days characteristic of summer in Río Negro.
The UV Index in Río Negro, Uruguay, reveals significant seasonal fluctuations, with peak values occurring during the summer months. January experiences an extreme UV Index of 15, necessitating sun protection measures within just 10 minutes of exposure. February and March follow closely with UV Index readings of 13 and 12, respectively, indicating a consistently high risk of harm from unprotected sun exposure. Such elevated UV levels during the summer highlight the importance of awareness and precaution, especially for outdoor enthusiasts and individuals with sensitive skin.
As autumn descends, the UV Index begins to decline substantially. By April, it drops to 8, categorized as very high, and the burn time extends slightly to 15 minutes. The transition continues into winter, where May and June record moderate UV levels of 5 and 4, respectively, allowing for longer safe exposure times of 30 minutes. However, as spring returns, the UV Index gradually increases again, reaching 8 in September before surging back to extreme levels by December, where it peaks at 14. This pattern underscores the necessity for sun protection strategies during the sunnier months while allowing for more lenient exposure during winter.
UV Risk Categories
In Río Negro, Uruguay, daylight duration exhibits a clear seasonal pattern, with the longest days occurring during the summer months. In January, residents enjoy a generous 14 hours of daylight, which gradually decreases to 13 hours in February and 12 hours in March as the seasons transition towards autumn. This abundant daylight fosters vibrant outdoor activities and is particularly advantageous for agriculture, making summer a prime time in the region.
As autumn shifts into winter, daylight duration reaches its lowest point, with May through July consistently offering just 10 hours of light each day. While the shorter days may limit outside activities, the return of spring in September brings a gradual increase, eventually leading to 11 hours of daylight. The trend continues into the end of the year, with daylight duration rising to 12 hours in October, 13 hours in November, and back to 14 hours by December. This cyclical rhythm of daylight highlights the natural ebb and flow of the seasons in Río Negro, shaping the lifestyle and activities of its inhabitants.
The climate in Algorta, Uruguay, features warm summers and cool winters, with January being the hottest month, averaging 25°C (77°F) and experiencing significant sunshine with 290 hours. Precipitation is relatively high during summer, particularly in January (119 mm) and February (113 mm), while winter sees lower rainfall, especially in July (70 mm). Average temperatures drop to around 12°C (53°F) in June and July. Despite the cooler months, there is still a fair amount of sunshine, particularly in November and December. For more detailed information, visit Algorta climate.
Fray Bentos, Uruguay, experiences a temperate climate marked by warm summers and mild winters. January is the hottest month, with average temperatures around 25°C (78°F) and significant sunshine totaling 292 hours, while July sees a cooler average of 11°C (53°F). Precipitation peaks in January with 121 mm (4.8 in), but remains relatively steady throughout the year, averaging around 97 mm (3.8 in). The region enjoys abundant sunshine, especially in late spring and summer, with November boasting 344 hours. For more detailed insights, visit Fray Bentos climate.
The climate in Nuevo Berlin, Uruguay, features warm summers with January averaging 25°C (78°F) and reaching maximum temperatures of 42°C (108°F). Winter months like July see cooler averages around 11°C (53°F) and occasional lows of -2°C (29°F). Precipitation is highest in the summer, peaking at 121 mm (4.8 in) in January, while June experiences the least at 73 mm (2.9 in). The region enjoys substantial sunshine, especially in December, which boasts 383 hours of sunlight. For more details, visit Nuevo Berlin climate.
San Javier, Uruguay, experiences a diverse climate characterized by hot summers and mild winters. January is the warmest month, averaging 25°C (78°F) with considerable sunshine (292 hours) but also significant rainfall (119 mm). Winters, particularly in July, can be chilly with lows dropping to -2°C (28°F) and less rainfall (55 mm). The area sees its most sunshine in December, offering 381 hours, while precipitation varies throughout the year, peaking in January and December. For more detailed information, visit San Javier climate.
Young, Uruguay experiences a temperate climate with warm summers and cool winters. January sees the highest temperatures, averaging 25°C (77°F), while July is the coldest month, averaging 11°C (53°F). Precipitation is fairly distributed throughout the year, with January and February receiving the most rain, around 104-115 mm (4.1-4.5 in). Sunshine hours peak in December with 384 hours, ensuring plenty of daylight during the warmer months. For more detailed information, visit Young climate.
In summary, the climate of Río Negro, Uruguay, showcases a dynamic interplay of temperature, precipitation, sunshine duration, UV Index, and daylight hours that collectively define its seasonal character. The region experiences significant temperature variations, with scorching summer months contrasted by chilly winters, while precipitation patterns and sunshine levels reflect typical humid subtropical characteristics. The extreme UV Index during peak summer highlights the need for sun safety awareness, and the daylight duration further influences the lifestyle and outdoor activities of the residents. Together, these climatic elements create a vibrant environment that not only shapes the natural landscape but also enriches the cultural fabric of the community throughout the year.