Last updated: August 21, 2025
In October, São Paulo experiences a blend of warm temperatures and moderate rainfall, creating a dynamic climate. The maximum temperature can soar to a scorching 37°C (99°F), while the average settles around a comfortable 21°C (70°F). Nights can be cooler, dropping to a minimum of 12°C (53°F). Rain is relatively frequent, with 16 days of precipitation accumulating to 118 mm (4.6 in), contributing to a humidity level of 50% that enhances the tropical feel of the city. October serves as a bridge into the warmer months, making it a vibrant time to explore São Paulo's rich culture and natural beauty.
In October, São Paulo experiences a vibrant transition into warmer weather, showcasing a remarkable range in temperatures. The minimum dips to a comfortable 12°C (53°F), while the average settles around a pleasant 21°C (70°F). However, the highlight of the month is the impressive maximum temperature that can soar up to 37°C (99°F). This month marks a significant shift from the cooler temperatures of the preceding months, suggesting that summer is just around the corner. With a steady climb from the lows of winter, October offers a delightful blend of warmth, making it a perfect time to explore the city's rich culture and stunning landscapes.
In October, São Paulo experiences a notable transition in its weather, with precipitation reaching 118 mm (4.6 in) over 16 days. This marks a significant increase compared to the preceding months, reflecting a pattern of rising rains as the city approaches the wetter season. Following the dry winter months of July and August, where rainfall plummeted, October's downpours herald the return of lush greenery and vibrant city life. Interestingly, rainfall levels remain steady into November, with similar precipitation amounts of 116 mm (4.6 in), suggesting a sustained wet period that is characteristic of the spring bloom. Overall, October serves as a pivotal month, bridging the drier winter with the rich, rainy season that defines the summer months ahead.
In October, São Paulo experiences a noticeable shift in humidity, with levels dropping to 50%, marking it as one of the driest months of the year. This decrease follows a gradual decline from the high humidity typical of the earlier months, where figures hovered around 88% in January and February, and gradually decreased to 58% by September. Such a transition signifies the onset of a more refreshing season, as the city moves away from the heavy, moisture-laden air of the summer months. Following October, humidity levels will gradually rise again, peaking in December at 80%, as the region prepares to welcome the warmer, wetter months of summer once more. This pattern underscores São Paulo's dynamic climate, characterized by a blend of humidity trends that reflect the changing seasons.
In October, Sao Paulo experiences a UV Index of 13, categorized as extreme, indicating a high risk of harm from unprotected sun exposure, similar to the preceding months of September and November. With a burn time of just 10 minutes, residents and visitors should take precautions to protect their skin. Notably, the trend from January to April reveals a consistently extreme exposure category with UV Index values above 10, peaking at 16 in January. As the year progresses into the cooler months of May and June, the index begins to decline, but it swiftly rises again, hitting extreme levels once more in October. This sharp fluctuation underscores the importance of staying vigilant about sun safety, regardless of the season. For more detailed information, check out Sao Paulo UV Index.
UV Risk Categories
October in São Paulo basks in 277 hours of sunshine, highlighting a compelling transition as the city moves from the mild hues of September. While the month stands slightly below the sun-drenched heights of preceding months like March (310 hours) and December (317 hours), it signifies the persistence of warmth as spring gives way to early summer. The gradual decrease from September’s 294 hours suggests a subtle shift, yet October still boasts plenty of bright days that make it an ideal time for outdoor adventures. As the year progresses, November nudges closer to 296 hours, promising even more sun-soaked experiences for locals and visitors alike. This fluctuation in sunshine hours not only reflects seasonal changes but also enriches the vibrant outdoor culture of São Paulo.
October in São Paulo heralds a significant dip in sunny weather, with only a 14% chance of clear skies. This decline is noticeable when compared to the previous months, particularly July, which boasts the highest likelihood of sunshine at 57%. As the year progresses from the vibrant summer months, the chances of encountering a sunny day decrease sharply, with October being one of the least favorable months. The warming trend in late spring, however, suggests that while the sun may be shy this October, the season's transition promises pockets of pleasant weather, particularly towards the end of the month. Overall, October serves as a gentle reminder that sunny days in São Paulo are becoming a rarer occurrence as the year draws toward its close.
In October, São Paulo enjoys a refreshing return to 12 hours of daylight, marking a shift toward longer days as the city transitions from the cooler months of winter. This month’s daylight aligns with the trend observed in the preceding months of September and August, where daylight hovered around 11 hours. Following the peak of January and November with 13 hours of sunlight, October serves as a gentle bridge towards the summer months, preparing the city for those sun-soaked days to come. Overall, daylight duration in São Paulo exhibits a rhythmic ebb and flow, with noticeable increases in light as the year progresses toward its climax in summer.
As October sweeps into São Paulo, the city feels the invigorating embrace of the wind, which picks up to an average speed of 3.6 m/s (8 mph). This marks a noticeable increase from the calmer days of earlier months, highlighting a trend where the wind gradually intensifies as the year progresses through the dry season. Following September's brisk 3.3 m/s (7 mph), October's breezy presence sets the stage for the upcoming months, where the winds hold steady above 3.5 m/s. The shift in wind patterns not only signifies a change in season but also creates an energetic atmosphere, encouraging both locals and visitors to bask in the outdoor delights of this vibrant city.
Weather in Sao Paulo varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Sao Paulo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, temperatures in São Paulo typically range from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), with an average temperature of 21°C (70°F). The month sees about 118 mm (4.6 in) of precipitation over 16 days, and humidity levels average around 50%. In contrast, January experiences slightly warmer conditions with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 34°C (93°F), averaging 23°C (74°F). However, January is characterized by higher rainfall, totaling 177 mm (7.0 in) across 20 days and a considerably elevated humidity of 88%. For a more detailed insight into January weather, you can explore Sao Paulo weather in January.
When comparing the weather of October and February, a few notable differences emerge. In October, the temperatures range from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), with an average of 21°C (70°F). This month also sees around 118 mm (4.6 in) of precipitation over 16 days, with a relatively moderate humidity of 50%. In contrast, February boasts slightly warmer temperatures, with a minimum of 15°C (59°F), an average of 23°C (73°F), and a maximum of 35°C (95°F). Additionally, February experiences higher precipitation levels, totaling 158 mm (6.2 in) over 17 days, and significantly increased humidity at 88%. For more detailed weather information, you can check Sao Paulo weather in February.
When comparing the weather in October and March, we notice several key differences. October typically features a wider temperature range, with minimums around 12°C (53°F) and maximums reaching up to 37°C (99°F), resulting in an average temperature of 21°C (70°F). In contrast, March has slightly warmer temperatures, starting at a minimum of 14°C (57°F) and peaking at 33°C (91°F), with an average of 23°C (73°F).
In terms of precipitation, October experiences 118 mm (4.6 in) spread over 16 days, while March sees a bit more rainfall at 135 mm (5.3 in) across the same number of days. Humidity levels are notably higher in March at 87%, compared to the more comfortable 50% in October. For a more detailed look at March weather in Sao Paulo, visit this link: Sao Paulo weather in March.
When comparing the weather in October and April, it's clear that both months present distinct characteristics. October sees a wider temperature range, with minimums of 12°C and maximums reaching up to 37°C, compared to April's relatively milder highs of 31°C. Additionally, October experiences significantly more rainfall, with 118 mm falling over 16 days, while April has only 55 mm of precipitation over 9 days. Furthermore, the humidity levels in April are notably higher at 84%, creating a more humid atmosphere than October's 50%. For more details on April's climate, you can visit Sao Paulo weather in April.
In comparing October and May weather, October tends to experience significantly warmer temperatures, with daily averages ranging from a minimum of 12°C (53°F) to a maximum of 37°C (99°F). In contrast, May is cooler, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 29°C (85°F). Additionally, October is more humid, averaging 50% compared to May's higher humidity level of 79%. Precipitation is also more frequent in October, with 118 mm (4.6 in) spread over 16 days, whereas May sees less rainfall at 48 mm (1.9 in) over just 6 days. For more information, you can check Sao Paulo weather in May.
October and June present distinct weather patterns in Sao Paulo. October features warmer temperatures, with a range from a cool 12°C (53°F) to a high of 37°C (99°F), averaging around 21°C (70°F). In contrast, June is generally cooler, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 28°C (82°F), averaging 18°C (64°F). Additionally, October sees increased rainfall, with 118 mm (4.6 in) spread over 16 days, while June has significantly less precipitation at 45 mm (1.8 in) over just 6 days. The humidity levels also differ, with October at 50% compared to June's higher level of 77%. To learn more about Sao Paulo's weather in June, visit Sao Paulo weather in June.
When comparing the weather in October to that of July, notable differences emerge. October experiences warmer temperatures, with a minimum of 12°C (53°F) and an average of 21°C (70°F), peaking at a high of 37°C (99°F). In contrast, July is much cooler, with temperatures ranging from a low of 2°C (36°F) to an average of 17°C (62°F) and a maximum of 29°C (85°F). Additionally, October sees significantly more precipitation, averaging 118 mm (4.6 in) over 16 days, while July is relatively dry, with only 25 mm (1.0 in) over just 2 days. The humidity is also higher in July at 72% compared to 50% in October, making October feel more comfortable despite its increased heat. For further details about July weather, you can check Sao Paulo weather in July.
In October, the weather in Sao Paulo is considerably warmer than in August, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 37°C (99°F) and an average of 21°C (70°F). In contrast, August has a cooler climate, with temperatures that range from a minimum of 6°C (42°F) to a maximum of 32°C (89°F) and an average temperature of 17°C (63°F). Additionally, October experiences significantly higher precipitation levels, totaling 118 mm (4.6 in) over 16 days, compared to August's 57 mm (2.2 in) over just 7 days. The humidity is also higher in August at 65%, whereas October sees a lower humidity level of 50%. For more details, check Sao Paulo weather in August.
October weather in Sao Paulo shows a slight increase in temperature compared to September, with average daily highs near 21°C (70°F) and peaks reaching up to 37°C (99°F), while September maxes out at 35°C (95°F). Additionally, October experiences significantly higher precipitation, with 118 mm (4.6 in) falling over 16 days, compared to just 40 mm (1.6 in) over 6 days in September. Humidity levels also slightly decrease in October, dropping to 50% from September's 58%. For more detailed information on September weather, you can check Sao Paulo weather in September.
In October, the weather tends to be warmer with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), while November experiences slightly cooler temperatures, peaking at 35°C (96°F). Both months have similar average temperatures around 21°C (70°F), though November is characterized by higher humidity levels at 75%, compared to October's 50%. Precipitation remains consistent, with October receiving 118 mm (4.6 in) over 16 days and November slightly less at 116 mm (4.6 in) over 15 days. For more insights, you can visit Sao Paulo weather in November.
October and December in Sao Paulo showcase notable differences in weather patterns. In October, temperatures range from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), with an average of 21°C (70°F) and 118 mm (4.6 in) of precipitation over 16 days, resulting in a humidity level of 50%. In contrast, December features slightly milder conditions, with temperatures ranging from 12°C (54°F) to a maximum of 34°C (93°F), while the average temperature increases to 22°C (72°F). However, it also experiences higher precipitation at 143 mm (5.6 in) over 21 days, leading to a significant rise in humidity to 80%. For a detailed look at December weather, visit Sao Paulo weather in December.
October in São Paulo ushers in a noticeable shift in weather, blending warm temperatures with increased rainfall, making it distinct from the preceding months. While daytime highs can soar, the average remains comfortably mild, creating an inviting atmosphere for outdoor activities. However, the rise in precipitation, spanning about half the month, means that visitors should prepare for occasional downpours amidst the sunlit afternoons. Additionally, with humidity at around 50%, the air can feel quite tropical. For those looking to experience São Paulo's unique October climate, this month offers a dynamic blend of warmth and rain that beautifully contrasts the drier season. For a deeper dive into what to expect year-round, explore the comprehensive information on Sao Paulo Climate.