Last updated: August 21, 2025
March in Rio Negro, Brazil, brings a blend of warmth and moisture, characterized by a maximum temperature reaching 32°C (89°F) and an average of 21°C (70°F), providing a pleasant climate for outdoor activities. Nighttime temperatures dip to a minimum of 12°C (53°F), offering cooler evenings. This month records significant precipitation, totaling 109 mm (4.3 in) spread over 15 days, creating a lush environment. With humidity levels soaring to 85%, March in Rio Negro is an immersive experience of tropical weather, where the interplay of warmth and rain invigorates the vibrant landscape.
In March, temperatures in Rio Negro, Brazil begin to subtly shift as summer draws to a close. With a minimum of 12°C (53°F) and an average temperature of 21°C (70°F), the region enjoys pleasant warmth. Although the maximum temperature dips slightly to 32°C (89°F), the trend intriguingly shows a gentle reduction from the sweltering highs of earlier months. This transitional period hints at the approaching cooler days of April, inviting visitors to savor the lingering heat while preparing for a refreshing change. March encapsulates the essence of summer's tail end, making it an ideal time for exploration amidst the vibrant Brazilian landscapes.
In March, Rio Negro experiences a notable shift in its precipitation patterns, with 109 mm (4.3 in) of rainfall accumulated over 15 days. This marks a decrease from the preceding months of January and February, which saw heavier rains of 150 mm and 124 mm respectively. The transition into April, which typically experiences a sharp drop to 47 mm (1.9 in) over just 5 days, hints at the region's shift towards a drier season. Despite this decline, March maintains a balance, retaining the same number of rainfall days as February, suggesting continued, albeit lighter, precipitation that supports the lush greenery before the more arid months ahead.
March in Rio Negro, Brazil, showcases a humidity level of 85%, reflecting a subtle but steady trend observed throughout the year. Following a slightly lower 83% in February, March maintains a compelling consistency, aligning with the humidity levels of both April and May. This month stands out for its balance, nestled comfortably between the distinctly humid conditions of early and late months. As the year progresses, it becomes evident that Rio Negro experiences rich humidity, gradually climbing from a low in July and August, where figures dip to 80% and 79%, respectively. Overall, March not only solidifies the region's characteristic moisture but also highlights the transitional patterns that mark the tropics.
In March, Rio Negro, Brazil, experiences a notable UV Index of 13, categorizing it as extreme, with a burn time of just 10 minutes. This month marks a slight decrease from the extremes of 15 in both January and February, yet it remains perilously high. Following a similar pattern, the UV Index generally decreases as the year progresses; it drops to 11 in April and continues to decrease further into the cooler months. These figures underscore the importance of sun protection, particularly in the early months of the year when the risk of sunburn is at its peak. For more insights on UV safety and trends, check out the full details at Rio Negro UV Index.
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March in Rio Negro, Brazil, shines brightly with an impressive 273 hours of sunshine, marking it as one of the sunniest months of the year. This delightful month follows the trend of increasing sunlight, with both January and February providing a solid base of 215 and 266 hours respectively. The gradual rise in daylight hours peaks in March before transitioning into a slight dip in April. The vibrant sunshine during this time enhances the region’s natural beauty and draws visitors eager to bask in the warmth, showcasing how the months lead into each other in a dance of light, culminating in the radiant days of late spring. With a yearly average that fluctuates, it's clear that March stands out as a beacon of brightness in the Brazilian calendar.
As March rolls around in Rio Negro, Brazil, the likelihood of sunny weather is marked by a 29% chance of sunshine, a notable fluctuation compared to preceding months. This percentage sits comfortably between the sun-drenched days of February, which boast a 43% probability, and the more varied conditions of April at 37%. The transition into autumn signals a steady increase in the chance of sun as the year progresses, with sunny days peaking in July at 53%. Despite March having fewer sunlit hours than mid-summer months, it still offers a promising escape from the gloom of late autumn, as seen in the much lower probabilities from October onwards. Such trends indicate that while rain may still occur, March provides a refreshing taste of the forthcoming sunnier months.
In March, Rio Negro, Brazil, enjoys 12 hours of daylight, marking a clear transition from the longer days of January and February. As summer wanes, daylight hours begin their gradual decline, a trend that continues into April with just 11 hours. This pattern showcases a natural rhythm in the region's seasonal shift, with daylight peaking again in November and December, where the cycle returns to 13 hours. As such, the moderate daylight in March signals not only the end of summer but also the approach of autumn, inviting residents and travelers alike to savor the vibrant landscapes before the days shorten further.
As March unfolds in Rio Negro, Brazil, a subtle shift in the winds is evident, bringing an average speed of 2.4 m/s (5 mph). This marks a slight decline from February’s gentle breezes of 2.6 m/s (6 mph). Traditionally, March tends to capture the quieter whispers of autumn as the winds prepare for the upcoming shifts in the seasons. In contrast, the summer months of January and August showcase stronger gusts, peaking at 3.1 m/s (7 mph) and 3.0 m/s (7 mph) respectively. The average wind patterns suggest a gradual oscillation throughout the year, where March stands as a transitional period before the breezes pick up once more in the early fall months. As the year progresses, the winds of Rio Negro tell a story of rhythm and change, subtly shaping the environmental tapestry of this vibrant region.
Weather in Rio Negro varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Rio Negro, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, January tends to be slightly warmer overall, with average temperatures of 22°C (72°F) compared to March's 21°C (70°F). January also experiences higher maximum temperatures, peaking at 34°C (93°F) versus 32°C (89°F) in March. However, March has a lower total precipitation at 109 mm (4.3 in) compared to January's 150 mm (5.9 in), with rainfall occurring over 15 days in March and 18 days in January. Humidity levels are fairly similar, with March at 85% and January at 86%. For more details on January's weather, you can visit Rio Negro weather in January.
When comparing the weather in February and March, both months display warm temperatures, although March generally sees slightly milder conditions. In March, temperatures range from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), while February offers a broader range with a maximum of 34°C (94°F). Both months experience a high level of precipitation, though February has slightly more at 124 mm (4.9 in) compared to March's 109 mm (4.3 in). Humidity levels are also comparable, with March at 85% and February at 83%. For more details on February's weather, you can check out Rio Negro weather in February.
March and April present distinct changes in weather patterns. In March, temperatures range from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), with an average of 21°C (70°F). This month experiences significant rainfall, totaling 109 mm (4.3 in) over 15 days, accompanied by high humidity levels of 85%. In contrast, April sees cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 30°C (86°F), averaging around 18°C (65°F). Precipitation drops significantly to 47 mm (1.9 in) over just 5 days, while humidity remains constant at 85%. For a more detailed look into April's weather, you can check out Rio Negro weather in April.
In March, the weather in Rio Negro tends to be warmer, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), and an overall average of 21°C (70°F). Additionally, March experiences higher precipitation levels, with 109 mm (4.3 in) falling over 15 days, accompanied by high humidity at 85%. In contrast, May sees cooler temperatures, with averages dropping to a minimum of 2°C (35°F) and a maximum of 28°C (83°F), averaging around 16°C (61°F). Precipitation in May is also lower, at 87 mm (3.4 in) over 8 days, and humidity remains similar at 86%. For more detailed insights, check out Rio Negro weather in May.
In March, the weather features a warmer range with minimum temperatures around 12°C (53°F) and maximums reaching up to 32°C (89°F), while June experiences cooler conditions with lows at 1°C (33°F) and highs of 26°C (79°F). Both months share a high humidity level of 85%, but March sees more rainfall, accumulating 109 mm (4.3 in) over 15 days compared to June’s 118 mm (4.6 in) over just 10 days. For more detailed information, you can check Rio Negro weather in June.
The weather in March is significantly warmer and more humid compared to July. In March, temperatures range from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), accompanied by high humidity at 85% and substantial rainfall of 109 mm (4.3 in) over 15 days. In contrast, July sees much cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 26°C (79°F). The humidity drops slightly to 80%, and precipitation is significantly lower, totaling only 27 mm (1.0 in) over just 4 days. For more details on the weather patterns in July, you can refer to Rio Negro weather in July.
In March, the weather is significantly warmer, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 32°C (89°F) and an average of 21°C (70°F). The month sees a considerable amount of rainfall, totaling 109 mm (4.3 in) over approximately 15 days, and high humidity levels at 85%. In contrast, August experiences cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 30°C (87°F), averaging 15°C (59°F). Precipitation is lower at 79 mm (3.1 in) over just 7 days, with humidity slightly reduced at 79%. For more detailed insights, check Rio Negro weather in August.
March and September present contrasting weather patterns. In March, temperatures fluctuate from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), resulting in an average of 21°C (70°F). The month experiences substantial rainfall, with 109 mm (4.3 in) of precipitation over 15 days, contributing to a high humidity level of 85%. In contrast, September sees cooler temperatures, with a minimum of 5°C (42°F) and an average of 18°C (65°F), while still reaching up to 32°C (90°F). Precipitation decreases to 69 mm (2.7 in) over just 8 days, and humidity is slightly lower at 82%. For more details on September weather, visit Rio Negro weather in September.
March and October in Rio Negro present distinct weather patterns that highlight the transition between seasons. In March, temperatures range from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), with an average of 21°C (70°F). The month experiences 109 mm (4.3 in) of precipitation over 15 days and maintains high humidity levels at 85%. In contrast, October features cooler temperatures, with lows of 6°C (44°F) and highs peaking at 34°C (93°F), averaging 18°C (65°F). Precipitation rises to 147 mm (5.8 in), spread across 14 days, while humidity sits at a slightly lower 82%. This comparison illustrates the warming trend in March, contrasted with the cooler, yet still humid conditions of October. For more detailed information, you can refer to Rio Negro weather in October.
March and November present distinct weather patterns, with March generally offering warmer temperatures. In March, temperatures range from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), with an average of 21°C (70°F). The month also sees a considerable amount of precipitation, totaling 109 mm (4.3 in) over 15 days and maintaining a high humidity level of 85%. In contrast, November features slightly cooler temperatures, with a minimum of 8°C (46°F) and an average of 19°C (67°F), but it can still reach up to 31°C (89°F). Precipitation in November is marginally lower at 103 mm (4.1 in) across 13 days, with humidity at 86%. For a detailed look at the weather specifics, check out Rio Negro weather in November.
In comparing the weather conditions of March and December, both months display similar average temperatures, hovering around 21°C (70°F). However, December tends to experience slightly higher maximum temperatures, reaching up to 34°C (93°F), compared to March's maximum of 32°C (89°F). In terms of precipitation, December also has a higher average of 137 mm (5.4 inches) over 17 days, while March sees 109 mm (4.3 inches) over 15 days. Additionally, humidity levels are slightly elevated in December at 88%, compared to March's 85%. For those interested in specific conditions during December, you can check Rio Negro weather in December.
March in Rio Negro brings a notable shift in weather patterns, marked by warmer temperatures and increased humidity, creating a distinctive environment compared to other months. The month often sees higher nightly lows and frequent precipitation, with rain gracing about half the days, leading to a lush and vibrant landscape. With an average temperature hovering around a comfortable 21°C (70°F), March strikes a balance between summer warmth and the approaching cooler seasons. This combination of warmth and moisture makes it an ideal time for outdoor activities, albeit with the occasional rain shower. For a deeper dive into Rio Negro's weather patterns, check out Rio Negro Climate.