Last updated: August 21, 2025
In October, Niteroi, Brazil, experiences a dynamic climate characterized by a maximum temperature reaching 36°C (97°F), while averaging a comfortable 24°C (75°F). The month sees a minimum temperature of 17°C (63°F), offering pleasant evenings. With an average precipitation of 86 mm (3.4 in) spread across 14 days, October can be wet, contributing to the region's lush greenery. The humidity levels sit at around 61%, enhancing the tropical feel of this vibrant city. Whether basking in the sun or enjoying the occasional rain shower, October in Niteroi offers a captivating mix of warmth and vitality.
In October, Niteroi, Brazil experiences a delightful transition as temperatures start to warm up, with a minimum of 17°C (63°F) and a striking maximum reaching 36°C (97°F). The average temperature settles at a comfortable 24°C (75°F), making it a pleasant time for outdoor activities. This month marks a gradual rise from the milder temperatures of previous months, showcasing a shift that hints at the approaching summer. With the blend of warm days and cooler nights, October invites both locals and visitors to enjoy the vibrant atmosphere of this coastal city.
October in Niteroi, Brazil, marks a notable shift in precipitation patterns, with an average rainfall of 86 mm (3.4 in) distributed over 14 days. This month shows a rebound from the drier conditions of the previous months, particularly June and July, which are characterized by significantly lower totals of 39 mm (1.5 in) and 35 mm (1.4 in) respectively. Contrasting with the relatively dry late winter and early spring months, October's rainfall prepares the region for the heavier downpours typical of the approaching summer season. As Niteroi transitions from the quieter post-winter months, the increase in both precipitation and rainy days sets the stage for the more humid and verdant landscape that follows in November and December.
In Niteroi, Brazil, October marks a notable shift in humidity, as levels dip to 61%, representing a refreshing decline from the consistently high percentages seen in the earlier months. The transition from the summer's oppressive moisture, where humidity peaks at 86% in March, gives way to the more comfortable conditions of early spring. As the year progresses, humidity steadily decreases from a high of 85% in the first few months to an impressive low by October. This trend not only enhances outdoor enjoyment but also signals a gradual approach into drier months ahead, making Niteroi's climate more manageable and inviting as it prepares for the wetter season to come.
In October, Niteroi, Brazil, experiences a UV Index of 12, falling within the extreme exposure category. This heightened level of UV radiation indicates that protection is essential, with a burn time of just 10 minutes for unprotected skin. Notably, October's UV intensity mirrors the trend of the preceding months, with values indicative of extreme exposure that persist from September and continue into November. As the year transitions, it's clear that Niteroi's UV Index remains consistently high, emphasizing the need for vigilance against sun exposure year-round. For more detailed information, check out the Niteroi UV Index.
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October in Niteroi, Brazil, offers a delightful balance of sunshine, with an impressive 281 hours of golden rays. This month, while slightly less sunny than the peak brightness of December, captures a vibrant essence as days grow shorter toward the year’s end. As we reflect on the year, March stands out with the highest sunlight hours at 309, signaling a lively transition into spring, while the cooling months of winter maintain a respectable 276 hours in June. Interestingly, October's hours align closely with the summer months of January and February, suggesting that Niteroi consistently enjoys ample sunshine during this time of year. Overall, October serves as a charming reminder of the region's abundant natural light, perfect for outdoor activities and basking in the beauty of coastal life.
In Niteroi, Brazil, October marks a notable decline in the chances of sunny weather, with just a 20% likelihood of clear skies. This contrasts sharply with the peak sunlight months from June to August, where figures hover between 54% and 60%. As the year progresses from the warm summer months of January and February, which enjoy a 36% and 33% chance of sunshine respectively, the sunny days become scarcer as autumn sets in. Following September's more balanced 50%, October emerges as one of the Cloudier months, suggesting that residents and visitors should prepare for a shift in weather as they enjoy the tail-end of the year.
In Niteroi, Brazil, October brings a welcoming return to longer days with 12 hours of daylight, aligning with the trend of gradual increases that begin in August. This month follows a stretch where daylight had waned in the earlier months, as seen in April and May when it dipped to just 11 and 10 hours, respectively. As we transition through October towards the end of the year, daylight duration begins to stabilize, reaching back to 13 hours in November and December, reminiscent of the sunny days seen in January. Overall, October serves as a bridge, blending the lingering light of spring with the full brightness of summer that lies just ahead.
As October unfolds in Niterói, Brazil, the winds pick up momentum, reaching an average speed of 4.2 m/s (9 mph)—the highest of the year so far. This increase marks a notable upward trend following the gentle breezes of earlier months, signifying a transition from the calmer summer conditions. With winds becoming progressively stronger since September, October heralds a refreshing shift, inviting residents and visitors alike to embrace outdoor activities against a backdrop of vibrant autumn hues. As the city prepares for the seasonal change, the invigorating October winds set the stage for a delightful experience amidst stunning coastal views.
Weather in Niteroi varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Niteroi, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present distinct weather characteristics. In October, temperatures range from a minimum of 17°C (63°F) to a warm maximum of 36°C (97°F), with an average of 24°C (75°F). The month sees around 86 mm (3.4 in) of precipitation over 14 days, and a relative humidity of 61%. On the other hand, January offers slightly warmer weather, with temperatures varying from 21°C (70°F) to 34°C (94°F), an average of 27°C (81°F), and a bit more rainfall at 91 mm (3.6 in) over 11 days. Notably, January has a significantly higher humidity level at 85%. For more details on January weather, visit Niteroi weather in January.
When comparing the weather in October and February, October typically enjoys milder temperatures, with averages around 24°C (75°F) and maximums reaching up to 36°C (97°F). In contrast, February experiences slightly higher averages at 27°C (80°F), with maximums peaking at 35°C (95°F). Precipitation is also more pronounced in February, with 119 mm (4.7 in) expected over 15 days compared to October's 86 mm (3.4 in) spread over 14 days. Additionally, February has higher humidity levels at 85%, compared to October's 61%, making it feel more humid and warmer. For more detailed insights on the weather during this month, you can refer to Niteroi weather in February.
In comparing October and March, we see some notable differences in weather conditions. October typically features a range of temperatures from a minimum of 17°C (63°F) to a maximum of 36°C (97°F), with an average of 24°C (75°F). The month experiences around 86 mm (3.4 in) of precipitation over approximately 14 days and maintains a humidity level of around 61%.
Conversely, March brings slightly warmer temperatures, with minimums around 20°C (69°F) and a maximum of 34°C (94°F), averaging 27°C (80°F). This month is also wetter, receiving about 138 mm (5.4 in) of rainfall over 16 days and higher humidity at 86%. These factors contribute to March feeling more humid and rainy compared to the relatively dry and warm conditions of October. For more detailed insights on March weather, you can check Niteroi weather in March.
October and April showcase relatively warm weather, but there are notable differences between the two months. In October, temperatures range from a minimum of 17°C (63°F) to a maximum of 36°C (97°F), with an average of 24°C (75°F). Humidity levels are moderate at 61% and rainfall is substantial, with 86 mm (3.4 in) recorded over 14 days. Conversely, April experiences slightly higher temperatures, with a minimum of 19°C (67°F), an average of 25°C (77°F), and a maximum of 34°C (93°F). However, April's humidity is notably higher at 83%, and precipitation is slightly less than in October at 81 mm (3.2 in) over the same number of days. For more detailed weather information, you can check Niteroi weather in April.
In comparing the weather of October and May, October tends to be slightly warmer, with an average temperature of 24°C (75°F) compared to May's average of 23°C (74°F). However, both months feature similar minimum temperatures, with October at 17°C (63°F) and May at 16°C (61°F). Precipitation levels are higher in October, receiving 86 mm (3.4 in) over approximately 14 days, while May experiences slightly less rain at 73 mm (2.9 in) over about 10 days. Additionally, May is marked by higher humidity at 81%, compared to October's 61%. For more details on the weather specifics in May, you can visit Niteroi weather in May.
When comparing the weather in October and June, October tends to be warmer overall, with average temperatures ranging from 17°C (63°F) at night to a maximum of 36°C (97°F) during the day. In contrast, June has slightly cooler weather, with average temperatures from 16°C (62°F) to a high of 31°C (89°F). Precipitation is more frequent in October, with 86 mm (3.4 in) falling over 14 days, compared to June’s 39 mm (1.5 in) over just 9 days. Additionally, humidity levels are higher in June at 80%, compared to October's 61%. For more specific details about the weather in June, you can refer to Niteroi weather in June.
In comparing the weather between October and July, October tends to be warmer overall, with average temperatures reaching 24°C (75°F) and a maximum of 36°C (97°F), compared to July's average of 21°C (71°F) and maximum of 32°C (90°F). Additionally, October experiences higher precipitation levels, with 86 mm (3.4 in) falling over 14 days, while July sees significantly less rainfall, totaling only 35 mm (1.4 in) over 6 days. Humidity is also higher in July at 76%, while October has a slightly lower humidity of 61%. For more specific information on July weather, you can visit this link: Niteroi weather in July.
In comparing the weather of October and August, October typically experiences warmer temperatures, with a minimum of 17°C (63°F), an average of 24°C (75°F), and a maximum reaching 36°C (97°F). In contrast, August sees slightly cooler temperatures, with a minimum of 14°C (58°F), an average of 21°C (71°F), and a maximum of 32°C (90°F). Precipitation levels are higher in October, totaling 86 mm (3.4 in) over 14 days, compared to August's 68 mm (2.7 in) over 11 days, indicating a wetter month. Additionally, while October's humidity averages 61%, August experiences a higher humidity level at 73%. For a more detailed look at August weather, you can check out Niteroi weather in August.
In comparing the weather of October and September, October tends to be slightly warmer, featuring an average temperature of 24°C (75°F), compared to September's 23°C (74°F). While both months start with a minimum temperature of 17°C (63°F), October reaches higher maximums, peaking at 36°C (97°F) versus September's 34°C (94°F). Precipitation also sees a notable increase in October, with 86 mm (3.4 in) falling over 14 days, while September experiences only 48 mm (1.9 in) across 8 days. Additionally, humidity levels are slightly lower in October at 61%, compared to September's 68%. For a more detailed look at September weather in Niteroi, you can refer to Niteroi weather in September.
In October, temperatures typically range from a minimum of 17°C (63°F) to a maximum of 36°C (97°F), with an average temperature of 24°C (75°F). The month sees a total of 86 mm (3.4 in) of precipitation across 14 days, maintaining a humidity level of 61%. In comparison, November experiences slightly warmer nights with a minimum temperature of 18°C (64°F) while the maximum drops to 34°C (94°F), still averaging at 24°C (75°F). However, November is wetter, with precipitation increasing to 115 mm (4.5 in) over 16 days, and humidity rising to 72%. For more details, you can check Niteroi weather in November.
In October, the weather features a minimum temperature of 17°C (63°F) and an average of 24°C (75°F), with a maximum reaching 36°C (97°F). The month sees moderate precipitation, totaling 86 mm (3.4 in), spread over 14 days, and humidity levels hover around 61%. In contrast, December brings slightly warmer temperatures, with a minimum of 19°C (67°F) and an average of 25°C (78°F), peaking at 33°C (92°F). Precipitation increases to 121 mm (4.8 in), occurring on 15 days, and humidity rises to 75%, making it a more humid month. For more details, check Niteroi weather in December.
As October unfolds in Niterói, it brings a delightful transition from the lingering warmth of winter to a more temperate climate, perfect for enjoying the city's beautiful landscapes. With an average temperature that sits comfortably around 24°C (75°F), it is a time when humidity levels start to rise, creating a more tropical vibe. While precipitation is more frequent this month compared to the dry months of winter, the average rainfall works to rejuvenate the lush surroundings, making it an ideal time for nature lovers. Overall, October offers a refreshing change, setting the stage for the warmer months to come. For more insights into the seasonal shifts, visit Niteroi Climate.