Last updated: August 21, 2025
In October, Manaus, Brazil experiences a blend of warm temperatures and notable rainfall, making it a dynamic month for weather enthusiasts. With daily maximums reaching up to 37°C (99°F) and an average temperature of 28°C (82°F), the warmth can be intense, yet evenings bring cooler air with a minimum of 22°C (71°F). Rainfall is a prevalent feature during this period, totalling 171 mm (6.7 in) across approximately 20 days, contributing to the region's characteristic lush greenery. Despite the frequent downpours, the humidity is relatively low at 32%, providing a somewhat comfortable atmosphere amid the tropical conditions. Ideal for those seeking to experience the vibrant life of the Amazon, October presents both challenges and charms in Manaus.
In October, Manaus, Brazil, heats up, showcasing one of its warmest months. With an average temperature of 28°C (82°F), the city experiences a significant rise in warmth, peaking at a scorching 37°C (99°F). This increase in temperature from the more moderate conditions of earlier months, where averages hover around 26-28°C (79-83°F), highlights a trend towards summer-like conditions. Even during the cooler hours, the min temperature remains pleasant at 22°C (71°F), ensuring that the tropical climate remains inviting for both residents and visitors. This lively month, marked by soaring temperatures, embodies the vibrant and warm spirit of the Amazon region.
In October, Manaus experiences a notable shift in rainfall, receiving 171 mm (6.7 in) of precipitation over 20 days. This mid-point in the rainy season marks a decrease from the preceding months, reflecting a gradual transition from the peak rainfall recorded in March and April, which often exceed 340 mm. While October is wetter than the drier months of July and August, it is significantly less rainy than the earlier peak months, establishing a trend of decreasing precipitation leading into the end of the year. As the city prepares for November's increase back toward heavier rains, the October showers provide a refreshing interlude, nourishing the lush Amazonian landscape while hinting at the impending wetness to come.
In October, Manaus experiences a notable shift in humidity, plunging to 32%, the lowest level of the year. This dramatic reduction follows the summer months, where humidity levels peak, particularly in May at 90%. The transition from the wetter months of April and May to the drier conditions of October highlights a significant trend in Manaus's climate. By the time October rolls in, the humidity has dipped more than by half compared to the previous months, creating a stark contrast as the region shifts from the oppressive moisture of the Amazon rainforest to a more comfortable, albeit brief, reprieve. This unique climatic pattern not only influences daily life in the city but also showcases the dynamic environment of the tropics, where fluctuations define the rhythm of the seasons.
In October in Manaus, Brazil, the UV Index remains high at 13, categorized as extreme, with a burn time of just 10 minutes. This month continues the trend observed since January, where persisting high UV levels have been a characteristic feature, peaking at 16 in the early months before gradually easing. Although there's a slight dip from the summer months, October's UV intensity still demands caution and protective measures. With the sun’s rays being particularly potent, it's crucial for residents and visitors alike to stay informed and prioritize sun safety. For more detailed information, check out the Manaus UV Index.
UV Risk Categories
October shines brightly in Manaus, Brazil, offering an impressive 294 hours of sunlight. As the region transitions into the end of the year, this month reflects a slight dip from the high of July, which boasts 327 hours of sun, yet it remains well above the year’s average. After a strong summer, with May and June leading the way at 272 and 298 hours respectively, October’s robust daylight is a welcoming embrace as people bask in the warmth before the rainy season descends. This gradual decline in daylight hours is a gentle reminder of the cycle of seasons, as Manaus prepares for the lush greenery that thrives under the tropical sun.
In October, Manaus experiences a notable 24% chance of sunny weather, a dip from the higher probabilities of summer months like July and August, which boast chances of 39% and 42% respectively. As the wet season approaches, the likelihood of clear skies decreases, yet October still offers a transition period that hints at sunnier days, especially when compared to the overcast tendencies of November and December. This month strikes a balance, providing opportunities for sun without the extreme heat, making it a pleasant time to explore this vibrant rainforest city.
In Manaus, Brazil, the daylight duration exhibits a fascinating consistency throughout the year. January to April welcomes a steady 12 hours of daylight, creating a uniform brightness that residents and visitors alike enjoy. As the year progresses into May through July, daylight slightly diminishes to 11 hours, hinting at the region's subtle seasonal shifts. However, this decrease is temporary, as **October marks a return to the delightful 12 hours of daylight, a trend that continues through November and December. This rhythmic pattern of daylight underscores the tropical climate's minimal fluctuations, offering a vibrant backdrop for the rich biodiversity that thrives in this Amazonian city.
In October, the winds in Manaus, Brazil maintain a steady presence, with an average speed of 1.5 m/s (3 mph). This measurements reflects a consistency observed throughout the year, with similar wind speeds noted in both January and March. Following the mild breezes of August and the slight dip in September, October’s winds return to their typical strength, highlighting a trend of stability in Manaus' weather patterns. The gentle currents offer a refreshing reprieve, as residents and visitors alike embrace the tropical climate woven with a soothing whisper of the wind.
Weather in Manaus varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Manaus, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present distinct contrasts in weather. October typically features higher temperatures, with daily averages around 28°C (82°F) and maximums reaching up to 37°C (99°F). The month experiences a fair amount of rainfall, with a total precipitation of 171 mm (6.7 in) over approximately 20 days, resulting in humidity levels around 32%. In contrast, January sees slightly cooler temperatures, with an average of 26°C (79°F) and a maximum of 34°C (93°F). However, January is marked by increased precipitation, totaling 238 mm (9.4 in) over about 23 days, which contributes to much higher humidity levels at 83%. For those interested in more details about January’s weather, please check Manaus weather in January.
October and February in Manaus present distinct weather patterns that highlight the region's tropical climate. In October, temperatures range from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), with an average temperature of 28°C (82°F). The month experiences significant rainfall, with 171 mm (6.7 in) falling over 20 days, but the humidity level remains relatively low at 32%. In contrast, February offers a cooler average temperature of 26°C (79°F) and a max of 33°C (92°F), while still starting at a minimum of around 22°C (72°F). Precipitation is higher at 242 mm (9.5 in) over 24 days, contributing to a much more humid atmosphere with humidity levels soaring to 73%. For a more detailed look at February weather specifics, visit Manaus weather in February.
October and March in Manaus present distinct weather characteristics. In October, temperatures range from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), with an average of 28°C (82°F). Despite its warmth, October typically experiences less rainfall, totaling 171 mm (6.7 in) over about 20 days, and maintains a lower humidity level of 32%. In contrast, March sees a slightly cooler average temperature of 26°C (80°F), with highs reaching 33°C (93°F). However, it is considerably wetter, with 349 mm (13.7 in) of precipitation spread over 28 days, leading to a much higher humidity level of 75%. For a more detailed look at the weather in March, you can visit Manaus weather in March.
October and April present stark contrasts in weather patterns. In October, temperatures range from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), with an average of 28°C (82°F). However, this month also sees significant rainfall, with around 171 mm (6.7 in) of precipitation over 20 days, adding a touch of humidity at 32%. In contrast, April is generally cooler, featuring a minimum of 22°C (72°F) and a maximum of 33°C (92°F), with an average temperature of 26°C (79°F). This month experiences much heavier rainfall, totaling 341 mm (13.4 in) over 29 days and a high humidity level of 85%. For more details, you can check out the complete information on Manaus weather in April.
In October, the weather is characterized by warm temperatures, with a minimum of 22°C (71°F) and a maximum of 37°C (99°F), averaging around 28°C (82°F). Despite the high temperatures, the month experiences 171 mm (6.7 in) of precipitation over 20 days, resulting in a relatively dry climate with a humidity level of 32%. In contrast, May offers slightly cooler average temperatures, ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F) and an average of 26°C (80°F). However, it is significantly wetter, receiving 316 mm (12.5 in) of rainfall over 29 days, leading to much higher humidity at 90%. For a more detailed look at the weather conditions in May, you can check Manaus weather in May.
October weather is generally warmer than June, with average temperatures ranging from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), compared to June's more moderate range of 22°C (72°F) to 33°C (91°F). While both months experience significant rainfall, October sees more precipitation at 171 mm (6.7 in) over 20 days, compared to June's 147 mm (5.8 in) over 22 days. Notably, June has a much higher humidity level at 84%, making it feel significantly more humid than October's 32%. For more information on the weather specifics in June, please refer to Manaus weather in June.
When comparing the weather in October to that of July, significant differences emerge. October tends to be hotter, with temperatures ranging from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), while July's temperatures range from 21°C (70°F) to 34°C (93°F). Additionally, October experiences notably higher precipitation, with 171 mm (6.7 in) over 20 days, compared to July's 87 mm (3.4 in) over 16 days. Moreover, the humidity in October is much lower at 32%, contrasting sharply with July’s higher humidity level of 71%. For more insights into the climate during the summer months, you can check Manaus weather in July.
In comparing the weather between October and August, both months experience similar minimum and average temperatures, with October reaching a slightly higher maximum of 37°C (99°F) compared to August's peak of 36°C (98°F). However, October is marked by significantly higher precipitation, accumulating 171 mm (6.7 in) over 20 days, whereas August sees just 59 mm (2.3 in) over 13 days. Additionally, the humidity levels in August are considerably higher at 56%, compared to October's more comfortable 32%. For more details on August weather, you can check Manaus weather in August.
When comparing the weather in October and September, both months experience similar minimum temperatures, remaining comfortably warm at around 22°C (71°F). However, October sees slightly higher average and maximum temperatures, reaching up to 37°C (99°F), compared to September’s maximum of 36°C (98°F). Additionally, October is significantly wetter, with 171 mm (6.7 in) of rainfall over 20 days, while September recorded only 116 mm (4.6 in) over 17 days. The humidity also differs, with October experiencing a much lower average of 32%, compared to September's higher 52%. For a more detailed look at September's climate, you can visit Manaus weather in September.
In October, the weather is characterized by relatively high temperatures, with a minimum of 22°C (71°F) and an average of 28°C (82°F), peaking at 37°C (99°F). However, October also experiences significant rainfall, totaling 171 mm (6.7 in) over approximately 20 days and lower humidity at 32%. In contrast, November sees a slight increase in minimum temperature, averaging 23°C (73°F) while the overall average dips to 27°C (81°F). Precipitation also rises to 219 mm (8.6 in) spread over 25 days, along with higher humidity levels at 41%. For more detailed information, check Manaus weather in November.
October and December showcase distinct weather patterns. In October, temperatures range from a minimum of 22°C (71°F) to a maximum of 37°C (99°F), with an average of 28°C (82°F). The month sees considerable rainfall, averaging 171 mm (6.7 in) over 20 days, and the humidity sits at a relatively low 32%. In contrast, December brings cooler temperatures with a minimum of 22°C (72°F) and a maximum of 34°C (93°F), averaging 26°C (79°F). However, this month experiences much higher rainfall, totaling 356 mm (14.0 in) across 29 days, along with increased humidity at 83%. For more details, check out Manaus weather in December.
In October, Manaus experiences a unique blend of warmth and moisture, setting it apart from other months. With temperatures peaking at a sizzling 37°C during the day and dipping to a pleasant 22°C at night, the weather invites both locals and tourists to enjoy the vibrant surroundings. However, the month also brings increased rainfall, with 20 days of precipitation contributing to a total of 171 mm. This heightened humidity, around 32%, can make the air feel more tropical and lush, enhancing the region's famous biodiversity. For those interested in understanding Manaus's climate dynamics more deeply, explore the full insights at Manaus Climate.