Last updated: August 21, 2025
In August, Manaus experiences tropical warmth, with maximum temperatures reaching up to 36°C (98°F) and an average of 28°C (82°F), providing a lively atmosphere for visitors and locals alike. The minimum temperature dips to a comfortable 22°C (72°F), ideal for evening outings. While this month witnesses 13 days of rain, contributing to a total precipitation of 59 mm (2.3 inches), humidity levels hover around 56%, adding a touch of stickiness to the air. Overall, August in Manaus offers a vibrant mix of heat and occasional rainfall, creating a uniquely dynamic tropical ambiance.
In August, Manaus experiences a noticeable rise in temperatures, characterized by a minimum of 22°C (72°F) and an average of 28°C (82°F), reaching a sizzling maximum of 36°C (98°F). This month marks the peak of the warm season, continuing a trend of increasing warmth seen since mid-year. The average temperature during August is higher than earlier months, reflecting the region's tropical climate, which consistently offers warm, humid conditions throughout the year. Travelers can expect vibrant, sunny days, perfect for exploring the lush Amazon rainforest, but should be prepared for the heat as it intensifies, making hydration essential.
August in Manaus, Brazil, marks a significant shift in the city's precipitation patterns, with rainfall plummeting to a mere 59 mm (2.3 in), making it one of the driest months of the year. This decrease in precipitation is mirrored by a reduction in rain days, with only 13 days of rain compared to the peak months earlier in the year. While the rain-soaked months of March through May showcase the region's tropical vibrancy, August stands out for its relative dryness, signaling a brief respite before the wet season picks up again in September. This notable dip in rainfall and rain days illustrates the distinct seasonal rhythms of Manaus, inviting locals and visitors alike to enjoy clearer skies and outdoor activities before the humidity returns.
In Manaus, Brazil, August marks a significant shift in humidity levels, dropping to a refreshing 56%—the lowest of the year. This noticeable decrease sets the stage for the subsequent months, as humidity levels steadily decline, reaching a minimal 52% in September and an even drier 32% in October. This mid-year transition from the high humidity of May (90%) and April (85%) reflects a more comfortable climate, particularly appealing during the peak of the rainy season. As the year progresses, humidity gradually rebounds, culminating in the heavy moisture characteristic of January and December, creating a unique rhythm of wet and dry that defines the region's tropical climate.
In August, Manaus, Brazil, continues to experience an extreme UV Index of 11, maintaining a consistent level of solar intensity that has characterized the months leading up to it. While the UV Index remains slightly lower compared to the peaks seen earlier in the year, notably in January through April with values reaching up to 16, the risk for sunburn still necessitates caution, with a burn time of just 10 minutes. This trend of high UV exposure reinforces the need for protective measures as the region transitions through its annual cycle. For more insights on protecting yourself from harmful UV radiation, visit Manaus UV Index.
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In Manaus, Brazil, August basks in an impressive 324 hours of sunshine, just slightly below July's peak of 327 hours. This month, positioned in the heart of Brazil's rainy season, showcases a remarkable consistency in sunshine hours, sustaining the vibrant energy that characterizes the region. Following the mid-year high, the days gradually start to shorten but remain ample enough to offer residents and visitors alike a warm glow, fostering a sense of vitality. As the sunshine begins to wane into the subsequent months, there's a noticeable trend—a steady decline from August into September's 310 hours, yet still, an abundance of light prevails, ensuring that the tropical allure of Manaus stays luminous.
In Manaus, Brazil, the likelihood of sunny days reaches a peak in August, with a 42% chance of clear skies. This marks a significant increase from the preceding months, where the sun's appearance remains a mere shadow—January through July averages only around 18%. After a steady climb through June and July, when the chances of sunshine start to grow, August shines as the brightest beacon of summer bliss. As the year progresses, the sun’s presence begins to wane again, dipping to 33% in September and returning to lower percentages in the months that follow, suggesting that August is a prime time for sun-seekers looking to bask in Manaus' warm embrace.
In August, Manaus, Brazil, experiences a delightful return to 12 hours of daylight, a consistent feature it shares with several other months throughout the year. This rhythm of daylight illustrates the region's unique equatorial position, where the length of day remains relatively stable. Following a brief period of 11 hours in the middle of the year from May to July, August marks a resurgence in daylight, alongside its counterparts in January through April and September through December. This consistency not only creates a comforting predictability for residents and visitors alike but also enhances the rich biodiversity and vibrant culture of the Amazon, as ample sunlight nurtures both nature and life in this tropical paradise.
In August, Manaus experiences a gentle uptick in its average wind speed, reaching 1.6 m/s (4 mph). This modest increase marks a slight improvement from the preceding months, which generally hover around 1.3 to 1.5 m/s. As the dry season begins to set in, the whisper of the wind becomes more noticeable, offering a refreshing contrast to the city's typical humidity. This trend of gradual wind increases in the late winter months hints at the approaching transition into the drier season, allowing both residents and visitors to enjoy the subtle, soothing breeze that enlivens the lush landscape of the Amazon.
Weather in Manaus varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Manaus, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January in Manaus present contrasting weather conditions. In August, temperatures range from a minimum of 22°C (72°F) to a maximum of 36°C (98°F), with an average around 28°C (82°F). This month experiences relatively less rainfall, totaling 59 mm (2.3 in) over about 13 days, and humidity levels are at 56%. In comparison, January is cooler with an average temperature of 26°C (79°F), a maximum of 34°C (93°F), and identical minimum temperatures of 22°C (71°F). However, it is much wetter, receiving 238 mm (9.4 in) of precipitation across 23 days, and the humidity spikes to 83%. For more detailed insights, check out Manaus weather in January.
In August, the weather in Manaus is characterized by warm temperatures, with a minimum of 22°C (72°F) and an average around 28°C (82°F), peaking at a maximum of 36°C (98°F). The month sees moderate rainfall, totaling 59 mm (2.3 in) over about 13 days, and a humidity level of 56%. In contrast, February experiences slightly cooler temperatures, with an average of 26°C (79°F) and a maximum of 33°C (92°F). However, it is much wetter, receiving 242 mm (9.5 in) of precipitation across 24 days, accompanied by higher humidity at 73%. For more details, check out Manaus weather in February.
In comparing the weather of August and March, we see significant differences in temperature, precipitation, and humidity. August features a warmer climate, with average temperatures reaching 28°C (82°F) and highs of up to 36°C (98°F), while March is slightly cooler, averaging 26°C (80°F) and peaking at 33°C (93°F). However, March is characterized by much higher precipitation, recording 349 mm (13.7 in) over 28 days, compared to August's 59 mm (2.3 in) over just 13 days. Additionally, humidity is higher in March at 75%, compared to 56% in August. For more detailed insights on March weather, you can check out Manaus weather in March.
In comparing the weather between August and April, we see distinct differences in temperature and precipitation. August typically enjoys warmer temperatures, with an average of 28°C (82°F) and a maximum that can reach up to 36°C (98°F). In contrast, April has slightly cooler average temperatures, peaking at 33°C (92°F). However, April is notably rainier, receiving 341 mm (13.4 in) of precipitation over 29 days, compared to August's 59 mm (2.3 in) over just 13 days. Furthermore, the humidity in April is significantly higher at 85%, making the air feel much more tropical compared to the 56% humidity experienced in August. For a closer look at the conditions in April, you can check out Manaus weather in April.
In comparing the weather of August and May, August tends to be hotter and drier. The average temperature in August reaches 28°C (82°F), with a maximum of 36°C (98°F), while May sees slightly cooler averages at 26°C (80°F) and a maximum of 34°C (93°F). Additionally, August experiences significantly less rainfall, with only 59 mm (2.3 in) over 13 days, compared to May's heavy precipitation of 316 mm (12.5 in) spread across 29 days. The humidity in August is also lower at 56%, compared to May’s high humidity level of 90%. For more specifics on May weather, you can check Manaus weather in May.
When comparing the weather in August and June, August tends to be warmer and drier. In August, temperatures range from a minimum of 22°C (72°F) to a maximum of 36°C (98°F), with an average temperature of 28°C (82°F). The month experiences about 59 mm (2.3 in) of precipitation over 13 days, resulting in a lower humidity level of 56%. In contrast, June has a similar minimum temperature of 22°C (72°F) but an average of 27°C (80°F) and a maximum of 33°C (91°F). Rainfall is significantly higher in June, with around 147 mm (5.8 in) spread over 22 days, contributing to a much higher humidity of 84%. For more details, you can check Manaus weather in June.
In comparing the weather of August and July, we see a slight increase in temperatures with August recording minimums of 22°C (72°F), averages of 28°C (82°F), and maximums of 36°C (98°F) compared to July's minimum of 21°C (70°F), average of 27°C (81°F), and maximum of 34°C (93°F). While August experiences slightly lower precipitation at 59 mm (2.3 in) over 13 days, July sees higher rainfall of 87 mm (3.4 in) across 16 days. Moreover, humidity is notably lower in August at 56%, whereas July remains more humid at 71%. For a more detailed look at July's climate, check out Manaus weather in July.
August and September share similar temperature ranges, with minimum temperatures around 22°C (72°F), average temperatures near 28°C (82°F), and maximum temperatures hitting 36°C (98°F). However, September experiences significantly higher precipitation, with 116 mm (4.6 in) over 17 days, compared to August's 59 mm (2.3 in) over 13 days. Additionally, September sees a slight drop in humidity, averaging 52% compared to August's 56%. For a more detailed overview, check out Manaus weather in September.
August and October in Manaus display some notable differences in weather patterns. Both months have a minimum temperature around 22°C (72°F) and an average temperature of 28°C (82°F), but October tends to reach slightly higher maximum temperatures, peaking at 37°C (99°F) compared to August's 36°C (98°F). However, October is significantly wetter, with a precipitation total of 171 mm (6.7 in) over 20 days, in contrast to August’s 59 mm (2.3 in) across 13 days. The humidity levels also differ, with October exhibiting a lower relative humidity of 32%, compared to August's higher humidity of 56%. For a detailed look at Manaus weather in October, you can visit Manaus weather in October.
In August, the weather is typically hot and humid, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 36°C (98°F) and an average of 28°C (82°F). During this month, rainfall measures about 59 mm (2.3 in) spread across 13 days, leading to a humidity level of 56%. In contrast, November sees slightly warmer temperatures, with a minimum of 23°C (73°F) and an average of 27°C (81°F), peaking at 35°C (96°F). However, it is significantly wetter, accumulating 219 mm (8.6 in) of precipitation over 25 days, resulting in a lower humidity of 41%. For more details on the weather in November, you can check Manaus weather in November.
In August, the weather tends to be warmer and drier, with average temperatures around 28°C (82°F) and maximums reaching up to 36°C (98°F). The month experiences relatively low precipitation, totaling 59 mm (2.3 in) over about 13 days, and humidity levels are at a moderate 56%. In contrast, December sees cooler average temperatures of 26°C (79°F) and maximums capping at 34°C (93°F). However, it is a much wetter month, with a significant increase in rainfall to 356 mm (14.0 in) spread across 29 days, resulting in higher humidity levels at 83%. For a more detailed overview of December's weather, you can check Manaus weather in December.
August in Manaus marks the tail end of the dry season, bringing a unique climate experience that stands apart from other months. With warm temperatures often peaking at a steamy 36°C (98°F) and a comfortable average of 28°C (82°F), this month invites both locals and visitors to bask in the vibrant atmosphere of the Amazon. While rainfall begins to make a more noticeable presence, with around 59 mm (2.3 in) over 13 days, it's still significantly drier compared to the forthcoming months. The 56% humidity adds a hint of stickiness, but it does little to dampen the denizens' spirits as they enjoy the lively surroundings. For a deeper understanding of Manaus's climate dynamics throughout the year, explore more at Manaus Climate.