Last updated: August 21, 2025
October in Guarulhos, Brazil brings a dynamic mix of weather patterns, with temperatures reaching a maximum of 36°C (97°F) and an average of 20°C (69°F). As the month progresses, residents can expect refreshingly cooler nights with temperatures dipping to a minimum of 12°C (53°F). Rainfall is a significant feature, totaling 135 mm (5.3 in) over 16 days, contributing to a humidity level of around 50%. This blend of warmth and occasional rainfall creates a vibrant atmosphere, making October a transitional month rich in both climate and character.
In October, Guarulhos, Brazil, experiences a notable shift in temperatures, showcasing the region's dynamic climate. With minimums around 12°C (53°F) and a steamy maximum reaching up to 36°C (97°F), the month is characterized by a warm embrace, perfect for outdoor activities. The average temperature hovers around 20°C (69°F), creating a pleasant atmosphere that hints at the approaching summer. Compared to the cooler months preceding it, October marks a significant rise, particularly evident in its striking maximum, which aligns more closely with the sultry conditions typical of December. As days grow warmer, October invites both locals and visitors to bask in the vibrant energy of Guarulhos.
October in Guarulhos, Brazil, marks a pivotal transition in precipitation patterns, with 135 mm (5.3 in) of rain spread over 16 days. This month stands out in comparison to the drier winter months of June and July, when rainfall plummets to just 48 mm (1.9 in) and 29 mm (1.1 in) respectively. The return of rain in October signals a shift from the dryness experienced in the middle of the year, contributing to an overall increase in moisture that prepares the region for the upcoming wet season. Interestingly, while October’s rainfall is significant, it still reflects a decrease from the peak rainy months in January, which boasts 192 mm (7.6 in) despite having more precipitation days. This trend underscores the variability in Guarulhos's climate, as the region balances between periods of heavy rainfall and drier spells.
In October, Guarulhos experiences a notable shift in humidity, dropping to a comfortable 50%, the lowest level of the year. This decline follows a trend of decreasing moisture from the earlier months, where levels hovered around 88% in January and February and gradually fell to 58% by September. The more humid summer months transition into a drier season, marking October as a refreshing break as the region prepares for the warmer festive season ahead. This lower humidity not only enhances the enjoyment of outdoor activities but also signals a gradual shift towards the more humid months that will follow in November and December.
In October, Guarulhos, Brazil, experiences a UV Index of 13, categorizing it as extreme with a burn time of just 10 minutes. This marks a notable trend as the UV Index tends to rise sharply from the winter months, reflecting a return to higher exposure levels akin to earlier in the year, such as in January and February when the Index reached 16 and 15 respectively. As the year transitions into its latter months, the UV Index remains consistently high, reinforcing the importance of sun protection for both residents and visitors. For a detailed understanding of the UV Index throughout the year, check out Guarulhos UV Index.
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As the sun-drenched days of October arrive in Guarulhos, Brazil, residents can look forward to an inviting 273 hours of sunlight, a delightful continuation of the vibrant light seen throughout the year. Following a steady decline from the peak of 305 hours in March, the sunshine begins to stabilize, reflecting a broader trend of milder daylight hours as the year transitions toward its end. Notably, October's sunshine serves as a bridge to the warmer November, which boasts an impressive 295 hours of radiant light. This gentle fluctuation in daylight offers a comforting rhythm for both locals and visitors, celebrating the beauty and warmth that characterizes Brazil's sunlit months.
October in Guarulhos, Brazil, marks a notable dip in sunshine, with only a 14% chance of sunny days, making it one of the cloudier months of the year. This trend starkly contrasts with the sun-soaked peak of July, which boasts a 55% chance of sunshine, and the more temperate days of April, at 40%. Following the vibrant warm months of February and March, where sunshine chances hover around 35-36%, October invites a shift towards cooler, less reliable weather. As the year progresses, residents and visitors alike may find themselves yearning for the brightness that characterizes the earlier months, as October's cloudy demeanor sets a different tone for the region.
In Guarulhos, Brazil, October marks a delightful transition in daylight duration, with approximately 12 hours of sunlight—a balance between the longer days of January and the shorter ones of May. As the year progresses, daylight begins to wane from the peak of 13 hours earlier in the year, gradually tapering off to 11 hours during the cooler months of April through August. The rhythm of daylight reveals a striking ebb and flow, returning to 12 hours in October, hinting at the forthcoming longer days of late spring and summer. This cyclical pattern not only illuminates the natural changes in the region but also sets the stage for the vibrant energy of the months ahead.
As October arrives in Guarulhos, Brazil, the winds begin to pick up, creating a refreshing shift in the atmosphere. With an average wind speed of 3.5 m/s (8 mph), October marks the transition into breezier days, outperforming the surrounding months with a noticeable increase. This uptick follows a gradual trend observed since late summer, where wind speeds have steadily climbed from 2.3 m/s (5 mph) in the early months to a robust 3.1 m/s (7 mph) by September. This delightful October breeze not only invigorates the environment but also hints at the seasonal changes ahead, inviting residents to enjoy the crisp air as they embrace the beauty of the coming months.
Weather in Guarulhos varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Guarulhos, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, the weather in Guarulhos features a range of temperatures from a minimum of 12°C (53°F) to a maximum of 36°C (97°F), with an average of 20°C (69°F). The month sees 135 mm (5.3 in) of precipitation over 16 days, and the humidity level stands at 50%. In contrast, January is generally warmer, with minimum temperatures around 15°C (59°F), an average of 23°C (74°F), and a maximum of 33°C (91°F). This month also experiences more rainfall, with 192 mm (7.6 in) spread over 19 days, and significantly higher humidity at 88%. For a detailed look at the weather conditions during this month, check Guarulhos weather in January.
Comparing October and February weather reveals notable differences in temperature and precipitation patterns. October typically experiences a wider temperature range, with minimums around 12°C (53°F) and maximums reaching up to 36°C (97°F), averaging 20°C (69°F). In contrast, February presents relatively milder temperatures, with minimums of 15°C (59°F) and maximums peaking at 34°C (93°F), averaging 22°C (73°F). Additionally, February sees increased humidity at 88% compared to October's 50%, along with higher precipitation levels of 166 mm (6.5 in) over 18 days, against October's 135 mm (5.3 in) over 16 days. For more insights on February weather, check out Guarulhos weather in February.
In comparing the weather between October and March, October tends to have a broader temperature range with a maximum of 36°C (97°F) and an average of 20°C (69°F), while March typically experiences milder temperatures, peaking at 32°C (90°F) and averaging 22°C (73°F). Although both months receive a significant amount of rainfall, March sees slightly higher precipitation at 147 mm (5.8 in) across 18 days compared to October's 135 mm (5.3 in) over 16 days. Additionally, March has considerably higher humidity at 87%, in contrast to October's more moderate 50%. For more details, you can check Guarulhos weather in March.
October and April both feature an average temperature of around 20°C (69°F), but they differ significantly in extremes and humidity levels. October experiences higher maximum temperatures, reaching up to 36°C (97°F), compared to April's peak of 31°C (88°F). Additionally, October sees more rainfall, with 135 mm (5.3 inches) over 16 days, while April has only 58 mm (2.3 inches) over 9 days. Humidity is also markedly higher in April at 84%, compared to 50% in October. For more details about April's weather, you can check out Guarulhos weather in April.
When comparing the weather in October and May, October presents a warmer climate with average temperatures reaching 20°C (69°F) and maximums soaring up to 36°C (97°F). In contrast, May offers a milder experience, with average temperatures around 18°C (65°F) and maximums peaking at 29°C (84°F). Precipitation is notably higher in October, with 135 mm (5.3 in) expected over 16 days, compared to just 56 mm (2.2 in) over 7 days in May. Additionally, May tends to be more humid with a humidity level of 79%, while October's humidity is around 50%. For a detailed look at May's weather, you can check Guarulhos weather in May.
When comparing the weather in October and June, October tends to be warmer with average temperatures around 20°C (69°F) and maximums soaring up to 36°C (97°F), while June has milder conditions with an average of 18°C (64°F) and maximums reaching only 28°C (82°F). Additionally, October experiences significantly higher precipitation, totaling 135 mm (5.3 in) over 16 days, compared to June's 48 mm (1.9 in) over just 7 days. Humidity levels in June are also notably higher at 77%, whereas October maintains a more comfortable average of 50%. For those interested in specific weather patterns, you can find more details here: Guarulhos weather in June.
When comparing the weather in October and July, significant differences emerge. October experiences a warm average temperature of 20°C (69°F) with highs reaching up to 36°C (97°F), while July is much cooler, averaging 16°C (62°F) and peaking at 29°C (84°F). Precipitation levels in October are notably higher at 135 mm (5.3 in) over 16 days, contrasting sharply with July's 29 mm (1.1 in) over only 3 days. Additionally, July has a higher humidity level of 72%, compared to 50% in October, making October feel more comfortable despite its warmth. For more information on the colder July temperatures, you can check Guarulhos weather in July.
When comparing the weather in October and August, we see notable differences in temperature and precipitation patterns. October tends to be warmer, with minimum temperatures around 12°C (53°F) and maximums reaching up to 36°C (97°F), averaging at 20°C (69°F). In contrast, August has cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 31°C (89°F), averaging 17°C (63°F). Precipitation is also more significant in October, featuring about 135 mm (5.3 in) over 16 days, compared to August's 64 mm (2.5 in) over 8 days. Additionally, humidity is lower in October at 50%, while August experiences higher humidity levels at 65%. For more specifics on August weather, you can check this link: Guarulhos weather in August.
In comparing the weather of October and September, October tends to be warmer and wetter. While September experiences a temperature range of 9°C to 34°C (48°F to 94°F), October sees a minimum of 12°C and a maximum of 36°C (53°F to 97°F). Despite the average temperatures being similar at around 20°C (68°F), October's increased rainfall is notable, with 135 mm (5.3 in) over 16 days compared to September's 47 mm (1.9 in) over just 6 days. Additionally, October has slightly lower humidity at 50% versus September's 58%. For more insights on September weather in Guarulhos, you can visit Guarulhos weather in September.
In October, the weather features a broader temperature range, with minimums of 12°C (53°F) and maximums reaching up to 36°C (97°F), while averaging around a comfortable 20°C (69°F). The month receives about 135 mm (5.3 in) of precipitation over 16 days, and the humidity sits at a moderate 50%.
In contrast, November brings slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 34°C (94°F), also averaging 20°C (69°F). Precipitation decreases slightly to 126 mm (5.0 in), while the number of rainy days remains the same at 16. However, humidity rises significantly to 75%, making the air feel a bit more muggy. For more details on the weather conditions, you can check Guarulhos weather in November.
In October, the weather features a comfortable range with average temperatures around 20°C (69°F), peaking at 36°C (97°F) on warmer days, and experiencing about 135 mm (5.3 in) of rain over 16 days while maintaining a humidity level of 50%. In contrast, December sees slightly higher average temperatures at 22°C (72°F) with maximums of 33°C (92°F). However, it also brings increased precipitation, totaling 150 mm (5.9 in) across 22 rainy days, accompanied by elevated humidity at 80%. This shift indicates a transition into a more humid and wetter climate by December, making it crucial for visitors to prepare accordingly. For more details, you can check the Guarulhos weather in December.
October in Guarulhos marks a transition into warmer days, setting it apart from the cooler, wetter months before. With temperatures peaking at an impressive 36°C (97°F), residents and visitors alike experience more sunshine and outdoor activities. Although the month still sees about 16 days of precipitation, the overall humidity remains a comfortable 50%, creating a pleasant atmosphere. This blend of warmth and occasional rain makes October a delightful prelude to the upcoming summer months. Explore more about the nuances of weather throughout the year by visiting Guarulhos Climate.