Last updated: August 21, 2025
Experience the vibrant October weather of Rio Negro, Brazil, where temperatures can reach a sizzling 34°C (93°F), balancing out with an average of 18°C (65°F) and dipping to a cool 6°C (44°F) at night. This month brings 147 mm (5.8 in) of rainfall over approximately 14 days, contributing to the region's lush landscapes. With humidity levels hovering around 82%, the air is rich and invigorating, setting the stage for a dynamic blend of tropical warmth and refreshing showers. Embrace the diverse climate that October offers, perfect for adventure seekers and nature enthusiasts alike.
In October, Rio Negro, Brazil, experiences mild temperatures that signal the transition into late spring. With a minimum of 6°C (44°F) and an average of 18°C (65°F), the climate remains comfortable for outdoor activities. The maximum temperature can soar up to 34°C (93°F), reminiscent of the warmer months preceding it. Compared to the cooler temperatures of the previous months, October shows a gradual warming trend, indicating that while the chill of winter is behind, the heat of summer has yet to fully take over. This blend of mildness and warmth makes October an inviting time to explore the diverse landscapes and vibrant culture of Rio Negro.
In October, Rio Negro experiences a notable resurgence in precipitation, with 147 mm (5.8 in) falling over the course of 14 days. This uptick follows a pattern of gradually decreasing rainfall from the beginning of the year, where January saw a high of 150 mm. After dipping to a low of 27 mm in July, the month of October marks a significant rebound, closely approaching the wetter months earlier in the year. This increase aligns with the return of more consistent rain after the drier winter months, suggesting a shift towards the region's wet season as it transitions into the final months of the year. The combination of increased precipitation days and volume reflects the dynamic weather patterns characteristic of this tropical environment.
October in Rio Negro, Brazil, welcomes a shift in humidity, settling at 82%. This figure is part of a broader trend, where the humidity levels remain consistently high throughout the year, peaking in the warmer months of November and December. Following a slight dip during the cooler mid-year months, October's humidity aligns closely with the overall averages observed in the preceding months, reflecting the region's tropical climate. As the year progresses, residents can expect not just the return of warmer air, but also the characteristic moisture that defines Rio Negro's environment, setting the stage for the hotter, more humid summer months ahead.
In October, Rio Negro, Brazil, experiences a UV Index of 13, maintaining its status in the extreme exposure category with a rapid burn time of just 10 minutes. This aligns with the high UV levels observed in the preceding months of January through March, reinforcing a pattern of significant solar intensity as the year begins to transition toward summer. Interestingly, as we move into the latter part of the year, the months of November and December also return to this peak UV Index, suggesting a consistent trend in high UV radiation during the warmer months. To stay protected, it's essential for residents and visitors to prioritize sun safety. For more detailed information, you can check the interactive Rio Negro UV Index.
UV Risk Categories
In October, Rio Negro, Brazil, basks in approximately 212 hours of sunshine, contributing to the vibrant atmosphere of the season. While this marks a slight dip from the sun-drenched highs of the earlier months like February and March, which offer up to 266 and 273 hours respectively, it still allows for plenty of time to enjoy the outdoors. October's sunshine holds its own among the year’s offerings, providing a perfect backdrop for a range of activities. As the year progresses, the sunshine gradually intensifies again leading into November's peak of 267 hours, showcasing a brilliant transition as the region prepares for the sweltering summer months ahead. This rhythmic pattern of sunshine hours reflects the region's tropical climate, enticing visitors and locals alike to revel in the natural beauty of Rio Negro.
In October, Rio Negro, Brazil, experiences a surprisingly low 11% chance of sunny weather, marking it as one of the cloudier months of the year. This trend starkly contrasts with the sunnier summer months, particularly July, which boasts a robust 53% chance of sunshine. Following a peak in late fall, the likelihood of clear skies shows a gradual decline, culminating in the equally somber statistics of October. The transition from the dry months of May and July to the darker days of early spring highlights how quickly atmospheric conditions can shift, leaving October less inviting for sun-seekers. As the seasons change, temperatures may cool, but the fading sunlight serves as a reminder of nature's ebb and flow.
In Rio Negro, Brazil, the daylight duration exhibits a captivating seasonal rhythm throughout the year. Starting with a generous 13 hours in January, the days gradually shorten until they reach their minimum of 10 hours in the heart of winter from May to July. As spring approaches, daylight begins its resurgence, edging back up to 12 hours in October, before a swift climb to 13 hours again in November and December. This cycle of varying daylight not only enhances the beauty of each season but also reflects the region's connection to the natural world, making Rio Negro a dynamic place to experience the shifting hours of sunlight.
As October unfolds in Rio Negro, Brazil, the average wind speed reaches a pleasant 3.0 m/s (7 mph), consistent with the breezy conditions enjoyed in late summer. This marks a slight uptick from the calmer months of March and May, where winds hovered around 2.4 to 2.5 m/s. Following the mild winds of September, which recorded 2.9 m/s (7 mph), October's breeze brings a refreshing shift, hinting at an invigorating transition towards the wetter months ahead. Throughout the year, wind speeds in this region generally fluctuate within a narrow band, with the most notable gusts appearing from August through October, making these months ideal for outdoor activities amidst nature's vibrant backdrop.
Weather in Rio Negro varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Rio Negro, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January offer distinct weather patterns, with October experiencing temperatures ranging from a cooler minimum of 6°C (44°F) to a warmer maximum of 34°C (93°F) and an average temperature of 18°C (65°F). It sees significant precipitation with 147 mm (5.8 in) over about 14 days and a humidity level of 82%. In contrast, January features milder minimum temperatures starting at 13°C (57°F) and a higher average of 22°C (72°F), maintaining the same maximum of 34°C (93°F). However, it has slightly more precipitation at 150 mm (5.9 in) across 18 rainy days, with humidity peaking at 86%. For a more detailed look at January's weather in this region, you can visit Rio Negro weather in January.
October and February both offer warm temperatures, with October showcasing a broader range, from a minimum of 6°C (44°F) to a maximum of 34°C (93°F) and an average of 18°C (65°F). In contrast, February presents a slightly milder climate, featuring minimum temperatures of 11°C (51°F) and an average of 21°C (71°F), while still reaching up to 34°C (94°F). Precipitation levels are fairly similar, with October receiving 147 mm (5.8 in) over 14 days, compared to February's 124 mm (4.9 in) across 15 days. Humidity remains high in both months, slightly edging up in February to 83%. For more details on February weather patterns, you can check Rio Negro weather in February.
When comparing the weather in October and March, October tends to have a wider temperature range, with minimums around 6°C (44°F) and maximums reaching up to 34°C (93°F), averaging at 18°C (65°F). In contrast, March sees milder minimum temperatures at 12°C (53°F) and average highs around 32°C (89°F), with an overall average of 21°C (70°F). Precipitation levels are slightly higher in October, with 147 mm (5.8 in) spread over 14 days compared to March’s 109 mm (4.3 in) over 15 days. Humidity is also slightly higher in October at 82%, while March has a humidity level of 85%. For a detailed look at March weather specifics, you can check Rio Negro weather in March.
October and April present distinct weather patterns, reflecting the transition between seasons. In October, temperatures range from a minimum of 6°C (44°F) to a maximum of 34°C (93°F), with an average of 18°C (65°F). This month is characterized by significant rainfall, accumulating 147 mm (5.8 in) over 14 days, and a humidity level of 82%. In contrast, April features slightly cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 30°C (86°F), while maintaining the same average of 18°C (65°F). Precipitation in April is much lighter at 47 mm (1.9 in) across just 5 days, alongside a humidity level of 85%. This comparison highlights the wetter and warmer conditions of October relative to the milder and drier climate of April. For more details on April weather, check Rio Negro weather in April.
October and May exhibit distinct weather patterns, reflecting the transitional phases of spring and autumn. In October, temperatures can range significantly, with a minimum of 6°C (44°F) and a maximum of 34°C (93°F), resulting in an average of 18°C (65°F). The month also experiences a higher level of precipitation, totaling 147 mm (5.8 in) over approximately 14 days, alongside an average humidity of 82%. In contrast, May features cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 28°C (83°F), and an average of 16°C (61°F). Precipitation is lower in May, at 87 mm (3.4 in) across about 8 days, accompanied by a slightly higher humidity of 86%. For a closer look at May weather specifics, you can check out Rio Negro weather in May.
October and June present distinctly different weather patterns. In October, temperatures range from a minimum of 6°C (44°F) to a maximum of 34°C (93°F), with an average of 18°C (65°F). The month experiences a significant amount of precipitation, totaling 147 mm (5.8 in) over 14 days, coupled with high humidity levels at 82%. In contrast, June offers cooler temperatures, with a minimum of 1°C (33°F), an average of 15°C (59°F), and a maximum of 26°C (79°F). While June has slightly less rainfall at 118 mm (4.6 in) over 10 days, it maintains a similar humidity level at 85%. For a closer look at June weather specifics, check out Rio Negro weather in June.
October weather in Rio Negro is notably warmer than in July, with average temperatures ranging from a minimum of 6°C (44°F) to a maximum of 34°C (93°F), compared to July's cooler temperatures of -4°C (26°F) to 26°C (79°F). Additionally, October experiences significantly higher precipitation, with 147 mm (5.8 in) over 14 days, while July has only 27 mm (1.0 in) spread over just 4 days. Humidity levels are similar, with October at 82% and July at 80%, but the overall warmer temperatures in October make it feel more humid. For more details on July weather, check out Rio Negro weather in July.
In comparing the weather of October and August, October tends to be warmer, boasting an average temperature of 18°C (65°F) compared to August's average of 15°C (59°F). While both months experience significant rainfall, October's precipitation of 147 mm (5.8 in) over 14 days contrasts sharply with August's 79 mm (3.1 in) over just 7 days. Additionally, October features higher humidity levels at 82%, compared to 79% in August. For more detailed weather information, you can visit Rio Negro weather in August.
In comparing the weather of October and September, we find that both months feature similar average temperatures, with October maintaining an average of 18°C (65°F) and September reflecting the same. However, October experiences a slightly higher minimum temperature of 6°C (44°F) compared to September’s 5°C (42°F). Interestingly, October also has a higher maximum temperature, peaking at 34°C (93°F) versus September's 32°C (90°F). Precipitation levels demonstrate a significant difference, with October receiving 147 mm (5.8 in) of rain over 14 days, in contrast to September's 69 mm (2.7 in) over just 8 days. Both months share the same humidity of 82%. For more details on the weather specifics for September, you can check Rio Negro weather in September.
October and November present subtle yet notable differences in weather patterns. In October, temperatures range from a minimum of 6°C (44°F) to a maximum of 34°C (93°F), with an average of 18°C (65°F). Precipitation is relatively high at 147 mm (5.8 in) over 14 days, accompanied by a humidity level of 82%. Moving into November, temperatures increase slightly, with a minimum of 8°C (46°F) and a maximum of 31°C (89°F), resulting in an average of 19°C (67°F). Precipitation decreases to 103 mm (4.1 in) over 13 days, and humidity rises to 86%. Overall, November offers slightly warmer conditions and less rainfall compared to October. For more details on weather in November, you can visit Rio Negro weather in November.
In October, the weather is characterized by a wider temperature range, with minimums reaching 6°C and maximums soaring up to 34°C, leading to an average of 18°C. This month sees significant precipitation, with 147 mm falling over 14 days and humidity levels at 82%. In contrast, December exhibits a milder climate, with minimum temperatures rising to 11°C and an average of 21°C. Although maximum temperatures can still hit 34°C, precipitation slightly decreases to 137 mm over 17 days, accompanied by higher humidity at 88%. For more detailed insights about December weather, you can visit Rio Negro weather in December.
As October unfolds in Rio Negro, the weather showcases a unique blend of warmth and moisture that sets it apart from other months. With average temperatures rising to a comfortable 18°C (65°F) and peaks reaching 34°C (93°F), residents experience the transitioning embrace of springtime warmth. This month also marks a notable increase in rainfall, with 147 mm (5.8 in) falling over approximately 14 days, contributing to the region's vibrant flora and lush landscapes. The humidity levels soar to around 82%, creating a humid yet refreshing atmosphere ideal for outdoor adventures. For a more comprehensive understanding of the seasonal patterns and climate specifics, visit Rio Negro Climate.