Last updated: August 21, 2025
Experience the distinct climate of Rio Negro, Brazil in August, where temperatures fluctuate between a maximum of 30°C (87°F) and a minimum of -1°C (30°F), providing a remarkable contrast. With an average temperature of 15°C (59°F), this month is characterized by a 79% humidity level, creating a comfortably moist atmosphere. Rainfall is moderate, with a total precipitation of 79 mm (3.1 in) spread over approximately 7 days, ensuring that the lush surroundings remain vibrant. Whether you’re exploring the natural beauty or enjoying local culture, August’s weather presents a unique backdrop for unforgettable experiences in this enchanting region.
In August, temperatures in Rio Negro, Brazil exhibit a subtle transition from the chillier mid-winter months to the onset of spring. With a minimum temperature of -1°C (30°F), the month begins with a crispness that contrasts with the higher average of 15°C (59°F) and a pleasantly warm maximum of 30°C (87°F). This slight warming trend signals a gradual shift as the nights remain cool but days become more inviting. August serves as a bridge, where the remnants of winter give way to the promise of warmer days ahead, aligning with the region’s overall climatic pattern of increasing temperatures as the year progresses.
In August, Rio Negro, Brazil, experiences a moderate shift in weather patterns, with precipitation totaling 79 mm (3.1 in) over the course of 7 days. This marks an increase from the drier month of July, which recorded just 27 mm (1.0 in) on only 4 days. While August sees less rainfall compared to the peak months of January and October, it still maintains a steady flow of moisture that contributes to the region's lush environment. As the year progresses, precipitation begins to increase again in September and October, suggesting a return to the wetter season, with rainfall peaking during the late months of the year. This trend highlights Rio Negro's unique climate, characterized by distinct wet and dry phases that shape its vibrant ecosystem.
In August, Rio Negro, Brazil experiences a slight dip in humidity, averaging 79%, marking it as one of the drier months of the year. This decrease follows a trend of gradually lower humidity from the peak levels observed from January to July, where figures hovered around the mid-80s. Notably, as winter transitions to spring in Brazil, August serves as a sign of shifting climatic conditions, setting the stage for the more humid months ahead. The following months, particularly September and October, tend to see a rebound in humidity levels, illustrating the region's dynamic and fluctuating weather patterns throughout the year.
In August, Rio Negro, Brazil, experiences a UV Index of 9, categorizing it as very high with a burn time of just 15 minutes. This represents a noticeable increase from the previous months, signaling that sun protection remains crucial even as winter wanes. Following the trend from January to April, where the index peaked at 15 during the summer months, the UV levels begin to moderate slightly in May and June. However, the return to very high conditions in August reminds us that even in the cooler months, vigilance is key. As summer approaches again later in the year, the sun's intensity will rise, emphasizing the need for continued awareness about UV exposure. For more information on the UV Index throughout the year, visit Rio Negro UV Index.
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August in Rio Negro, Brazil, continues the trend of generous sunshine that characterizes the region throughout the year, boasting 238 hours of brilliant sunlight. This month comfortably sits between the brighter mid-year months of February and March, which shine with over 260 hours, and the slightly cooler, cloudier months leading into the festive end of the year. While there is a slight dip in sunlight from July’s peak of 261 hours, August remains one of the sun-kissed highlights, setting the stage for a vibrant atmosphere that residents and visitors alike eagerly embrace. As summer transitions towards spring, the consistent daylight supports outdoor adventures and the lush, colorful ambience that Rio Negro is known for, making it an ideal time to revel in the natural beauty of this captivating locale.
In Rio Negro, Brazil, August presents a 41% chance of sunny weather, making it one of the more favorable months for sunshine as winter begins to wane. This likelihood is a slight dip from the peak of 53% in July, yet remains noticeably higher than the preceding months of April (37%) and March (29%). As the year progresses, the shift towards sunnier days becomes evident; particularly in contrast to the overcast nature of early and late year months like January (12%) and October (11%). Thus, visitors in August can expect a pleasant blend of sunny spells, setting the stage for enjoying the vibrant landscapes of Rio Negro.
In Rio Negro, Brazil, the daylight duration begins a subtle shift through the year, showcasing nature’s rhythm. August, with 11 hours of daylight, marks a gentle transition as the days gradually brighten following the mid-year peak of about 10 hours in June and July. This slight increase suggests the onset of spring in the Southern Hemisphere, leading into September, where daylight holds steady at 11 hours. The later months, from October through December, see a resurgence, culminating in 13 hours of daylight by year's end, inviting longer, sunlit days as summer approaches. This cyclical pattern highlights the seasonal dynamics of the region and the gradual elongation of daylight as the year progresses.
In August, the winds in Rio Negro, Brazil, begin to pick up slightly, with an average speed of 3.0 m/s (7 mph), a refreshing increase from the milder breezes of the preceding months. As we transition from the depths of winter, August's gusts hint at the approaching spring, offering a reprieve from the more stagnant air of earlier months like February, where speeds dipped to 2.6 m/s (6 mph). This gentle uptick continues into October before stabilizing, reflecting a trend that showcases the region's climatic nuances. While overall average wind speeds maintain a modest range throughout the year, the subtle fluctuations remind us of nature's rhythm in this vibrant corner of Brazil.
Weather in Rio Negro varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Rio Negro, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather in Rio Negro features a broad temperature range, with a minimum of -1°C (30°F) and a maximum of 30°C (87°F), leading to an average of about 15°C (59°F). The month experiences considerable humidity at 79%, accompanied by 79 mm (3.1 in) of precipitation over roughly 7 days. In contrast, January is significantly warmer, with temperatures ranging from a minimum of 13°C (57°F) to a maximum of 34°C (93°F), resulting in an average temperature of 22°C (72°F). The humidity rises to 86%, and precipitation increases to 150 mm (5.9 in) across 18 days. For more details on January weather specifically, you can visit Rio Negro weather in January.
When comparing the weather in August and February, we see distinct differences in temperature and precipitation. In August, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable average of 15°C (59°F), with highs reaching up to 30°C (87°F). In contrast, February features a much warmer climate, with temperatures ranging from a mild minimum of 11°C (51°F) to a higher average of 21°C (71°F), peaking at a sweltering 34°C (94°F). Precipitation also varies significantly; August receives 79 mm (3.1 inches) of rain over about 7 days, while February sees an increase in precipitation to 124 mm (4.9 inches) across 15 days. Humidity remains relatively high in both months, with August at 79% and February slightly higher at 83%. For more detailed information on February weather specifics, you can visit Rio Negro weather in February.
When comparing the weather in August and March, a stark contrast emerges. In August, temperatures range from a chilly -1°C (30°F) to a comfortable maximum of 30°C (87°F), with an average of 15°C (59°F). This month experiences about 79 mm (3.1 in) of precipitation over approximately 7 days, accompanied by a humidity level of 79%. In contrast, March offers significantly warmer temperatures, with a minimum of 12°C (53°F) and reaching as high as 32°C (89°F), averaging 21°C (70°F). The month is wetter, too, with 109 mm (4.3 in) of rain spread over 15 days and slightly higher humidity at 85%. For a detailed outlook, you can check Rio Negro weather in March.
When comparing the weather in August and April, we can observe some notable differences and similarities. August experiences a wider temperature range, with a minimum of -1°C (30°F) and a maximum of 30°C (87°F), averaging around 15°C (59°F), while April has generally milder temperatures, with a minimum of 4°C (39°F), an average of 18°C (65°F), and a maximum also reaching 30°C (86°F). Precipitation in August is slightly higher at 79 mm (3.1 in) over about 7 days, compared to April's 47 mm (1.9 in) over 5 days, indicating that August tends to be wetter. Humidity levels are relatively close, with August at 79% and April slightly higher at 85%. For more specific details about the weather in April, you can check out Rio Negro weather in April.
In comparing the weather of August and May, both months exhibit mild temperatures, but with distinct characteristics. August experiences a slightly wider range, with minimum temperatures dipping to -1°C (30°F) and maximums reaching up to 30°C (87°F), while May's temperatures are a bit more stable, with a minimum of 2°C (35°F) and a maximum of 28°C (83°F). Precipitation levels are similar, though May sees a marginal increase in rainfall at 87 mm (3.4 in) over 8 days compared to August's 79 mm (3.1 in) over 7 days. Additionally, humidity levels are relatively high in both months, with May being slightly more humid at 86% versus August's 79%. For more detailed insights into May weather specifically, you can check out Rio Negro weather in May.
When comparing the weather in August and June, we see some notable differences. August experiences a wider temperature range, with a minimum of -1°C (30°F) and a maximum of 30°C (87°F), while June's temperatures range from 1°C (33°F) to a maximum of 26°C (79°F). Both months have similar average temperatures of 15°C (59°F). However, August sees less precipitation at 79 mm (3.1 in) over 7 days, compared to June's higher total of 118 mm (4.6 in) across 10 days. Humidity levels are also slightly lower in August at 79%, compared to June's higher humidity of 85%. For more insights on June weather, you can check the details here: Rio Negro weather in June.
In comparing the weather of August and July, it is evident that August tends to be warmer, with average temperatures rising from 14°C (57°F) in July to 15°C (59°F) in August. The maximum temperature in August reaches up to 30°C (87°F), significantly higher than July’s maximum of 26°C (79°F). However, August experiences more rainfall, with 79 mm (3.1 in) over 7 days, compared to just 27 mm (1.0 in) on 4 days in July. Both months have similar humidity levels, hovering around 79% in August and slightly higher at 80% in July. For more detailed information, you can check Rio Negro weather in July.
August and September offer a noticeable shift in weather conditions. In August, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable maximum of 30°C (87°F), with an average temperature of 15°C (59°F). The month sees about 79 mm (3.1 in) of precipitation over 7 days, coupled with a humidity level of 79%. In contrast, September experiences a warmer climate, with temperatures moving from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), and an average temperature of 18°C (65°F). Although slightly less rain falls in September, with a total of 69 mm (2.7 in) over 8 days, the humidity increases to 82%. For more specific details about September weather, you can refer to Rio Negro weather in September.
In August, the weather features a broad temperature range, with minimums dropping to -1°C (30°F) and an average of 15°C (59°F), peaking at a high of 30°C (87°F). The month experiences around 79 mm (3.1 in) of precipitation over about 7 days, contributing to a humidity level of 79%. In contrast, October sees a more moderate minimum temperature of 6°C (44°F), with an average of 18°C (65°F) and highs soaring to 34°C (93°F). Additionally, October is rainier, recording 147 mm (5.8 in) of precipitation across 14 days, and experiences slightly higher humidity at 82%. For more specific details on October weather, check out Rio Negro weather in October.
August and November showcase significant contrasts in weather patterns. In August, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant average of 15°C (59°F), peaking at 30°C (87°F). The month sees around 79 mm (3.1 in) of precipitation over approximately 7 days, coupled with a humidity level of 79%. In contrast, November offers milder weather with minimum temperatures starting at 8°C (46°F) and an average of 19°C (67°F), reaching up to 31°C (89°F). Additionally, November experiences more rainfall, totaling 103 mm (4.1 in) over about 13 days, and higher humidity at 86%. For more details on November weather, you can refer to Rio Negro weather in November.
In comparing the weather conditions of August and December, significant differences emerge. August experiences a cooler climate, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 30°C (87°F) and an average of 15°C (59°F). The month sees about 79 mm (3.1 in) of precipitation over 7 days, accompanied by a relatively high humidity level of 79%. In contrast, December brings warmer weather, with temperatures ranging from a minimum of 11°C (52°F) to a scorching maximum of 34°C (93°F), averaging 21°C (70°F). Precipitation increases to 137 mm (5.4 in), spanning 17 days, and humidity rises slightly to 88%. For a detailed look at December's climate, visit Rio Negro weather in December.
As August unfolds in Rio Negro, the weather takes on a unique character compared to other months. With temperatures swinging from a brisk low to a pleasing high, residents and visitors experience a refreshing coolness that pleasantly contrasts the warmer summer months. Although rainfall is modest, with an average of seven wet days, the increased humidity at 79% adds a distinct moisture to the air. This makes August an ideal time for those looking to enjoy the lush greenery brought on by previous rains, while also experiencing a cooler climate. For a deeper dive into the area's distinct weather patterns throughout the year, explore Rio Negro Climate.