Last updated: August 21, 2025
September in Bertioga, Brazil, showcases a dynamic and inviting climate, with temperatures soaring to a maximum of 36°C (97°F), while maintaining a comfortable average of 20°C (68°F). The month experiences a minimum dip to 11°C (52°F), adding a refreshing contrast to the warmth. With rainfall measuring 88 mm (3.5 in) across 11 days, humidity levels hover around 58%, creating a tropical atmosphere perfect for exploring the area's stunning landscapes. Whether you’re seeking sunny beach days or cooler evenings, September in Bertioga delivers a delightful blend of weather experiences.
In September, Bertioga experiences a notable shift as the lingering chill of winter recedes, ushering in warmer temperatures. With a minimum of 11°C (52°F) and a maximum that can soar up to 36°C (97°F), visitors can expect a delightful blend of mild and summery conditions. The average temperature of 20°C (68°F) signals the gradual transition toward the hotter months, making it a perfect time for beach activities or exploring the lush surroundings. This month marks a significant upswing in temperatures compared to the colder preceding months, hinting at the vibrant summer atmosphere that is just around the corner.
September in Bertioga, Brazil, marks a subtle transition in precipitation patterns as the rainy season gradually intensifies. With an average of 88 mm (3.5 in) of rainfall spread across 11 days, the month experiences a notable decrease in precipitation compared to the wetter months of January and February, which often exceed 300 mm. In contrast to the more arid mid-year months of July and August, September's rainfall hints at a gradual shift towards the wetter fall season. As the days shorten and temperatures start to cool, the combination of moderate rainfall and the lingering humidity sets the stage for a vibrant landscape, beckoning the arrival of more impactful storms in October and November.
In September, Bertioga, Brazil, experiences a remarkable shift in humidity levels, dropping to 58%. This notable decrease marks a transition from the high humidity typical of the earlier months, creating a more comfortable atmosphere as the region moves towards the drier season. From a humid starting point of 88% in January, there is a gradual decline over the months, with September showcasing a significant drop compared to the more humid August at 65%. As October approaches, humidity continues to ease, reaching its lowest point of 50% by mid-autumn. This trend not only makes September an ideal month for outdoor activities but also sets the stage for the pleasant, milder months ahead.
In Bertioga, Brazil, the UV Index remains notably high throughout September, registering an index of 11, which falls into the extreme exposure category. This marks a continuation of the extreme UV levels observed since January, with the burn time consistently set at just 10 minutes. After a brief dip in the mid-year months, where the index ranged from 6 to 9, the UV intensity ramps up again heading into spring. This trend suggests that while the sun's intensity fluctuates with the seasons, the risk of sunburn remains significant, urging residents and visitors alike to take necessary precautions. For comprehensive insights on UV levels, visit the detailed Bertioga UV Index.
UV Risk Categories
As September unfolds in Bertioga, Brazil, residents and visitors alike can bask in the refreshing warmth of 290 hours of sunshine. This vibrant month glows with nearly the same luminous embrace as the peak of summer, with only a slight drop from the sun-drenched highs of March, which boasts a notable 305 hours. Following a steady pattern, September maintains a bright balance as the days gradually shorten, yet it still shines brighter than the autumn months that follow. The consistent sunshine throughout the year indicates a delightful climate, with the sun-kissed days of November, which tops the annual chart at 295 hours, serving as a glorious reminder of summer’s lingering presence. As the sun sets each day, September in Bertioga leaves an imprint of bright days, beckoning everyone to enjoy its radiant beauty.
In Bertioga, Brazil, the likelihood of sunny weather in September stands at 33%, aligning with the previous months of February and March. This indicates a trend toward increased sunshine as the year progresses, peaking in July and August, where the chances rise to 49% and 44%, respectively. As summer approaches, September offers a promising balance between mild temperatures and a fair chance of sunshine, making it a delightful time to enjoy outdoor activities before the year's cloudier months set in.
As the days begin to transition into the vibrant colors of spring, September in Bertioga, Brazil offers a refreshing daylight duration of approximately 11 hours. This marks a shift from the peak of winter, where the days were shorter at just 10 hours in May, June, and July. The gradual increase in daylight resumes in August and carries into October, where the sun will shine for 12 hours. Notably, this month serves as a bridge, maintaining an 11-hour daylight pattern that hints at the longer, sun-drenched days to come in the final quarter of the year. With the promise of more light ahead, September invites both locals and visitors to enjoy the beautiful Brazilian coastline under a pleasantly extended sky.
As September rolls in Bertioga, Brazil, the winds begin to pick up, marking a subtle shift in the seasonal breeze. With an average wind speed of 2.2 m/s (5 mph), September enjoys one of the stronger gusts of the year, continuing an upward trend that began mid-year. After a steady pace of around 1.6 to 1.9 m/s from January through July, the winds surged modestly in August. This invigorating increase not only enhances the coastal experience but also hints at the approaching transition to even windier months ahead. As temperatures cool and October follows with an even brisker average of 2.4 m/s, Bertioga welcomes the change with open arms, inviting outdoor enthusiasts and nature lovers to revel in the refreshing maritime air.
Weather in Bertioga varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bertioga, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather tends to be milder, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 36°C (97°F), averaging around 20°C (68°F). This month experiences a moderate amount of rain, totaling 88 mm (3.5 in) over about 11 days, and humidity levels are relatively comfortable at 58%. In contrast, January is warmer and wetter, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), averaging 24°C (75°F). The rainfall is significantly higher at 333 mm (13.1 in) across 22 days, accompanied by increased humidity of 88%. For more details on January weather, check out Bertioga weather in January.
In comparing the weather of September and February, we see notable differences in both temperature and precipitation. September has a more varied temperature range, with minimums around 11°C (52°F) and maximums reaching up to 36°C (97°F), while February maintains a milder range, with minimums of 16°C (61°F) and maximums peaking at 34°C (93°F). Additionally, February is characterized by significantly higher precipitation, totaling 364 mm (14.3 in) over 24 days, compared to September's 88 mm (3.5 in) over just 11 days. Furthermore, February experiences higher humidity levels at 88%, in contrast to September's 58%. For more information on February weather specifically, you can check out Bertioga weather in February.
In comparing the weather of September and March, notable differences can be observed. September typically experiences milder temperatures, with minimums around 11°C (52°F) and maximums reaching 36°C (97°F), averaging at 20°C (68°F). The month sees an average precipitation of 88 mm (3.5 in) over 11 rainy days, accompanied by a humidity level of 58%. In contrast, March has a warmer climate, with minimum temperatures at 14°C (58°F) and maximums of 33°C (92°F), averaging 23°C (74°F). However, it is considerably wetter, accumulating 319 mm (12.6 in) of rainfall across 25 days, and the humidity is notably higher at 87%. For more specifics on March weather, you can refer to Bertioga weather in March.
When comparing the weather in September and April, there are notable differences in both temperature and precipitation. September tends to be warmer with an average temperature of 20°C (68°F), peaking at 36°C (97°F), while April has a slightly cooler average of 21°C (70°F), with a maximum temperature of 33°C (92°F). In terms of humidity, September's 58% is lower than April's 84%, making April feel more humid overall. Additionally, April experiences more significant rainfall, with 146 mm (5.7 in) over 18 days, compared to September's 88 mm (3.5 in) over 11 days. For a detailed look at what to expect weather-wise, you can check Bertioga weather in April.
In comparing the weather of September and May, it’s clear that both months have distinct characteristics. September typically features a wider temperature range, with minimums of 11°C (52°F) and maximums soaring to 36°C (97°F), while May sees slightly cooler temperatures, ranging from a minimum of 8°C (47°F) to a maximum of 30°C (86°F). Precipitation is a bit higher in May at 103 mm (4.0 in) over 12 days compared to September’s 88 mm (3.5 in) over 11 days, and humidity is notably higher in May at 79%, compared to September's 58%. For more detailed insights, you can check Bertioga weather in May.
In comparing the weather between September and June, we see notable differences in temperature and humidity. September experiences a wider temperature range, with minimums reaching 11°C (52°F) and maximums soaring up to 36°C (97°F), while June remains cooler, with a minimum of 9°C (48°F) and a maximum of 30°C (86°F). Both months receive similar levels of precipitation, around 88-95 mm (3.5-3.8 in), and share approximately 11 rainy days. However, June tends to feel more humid, with an average humidity of 77%, compared to September's 58%. For more detailed information, you can check Bertioga weather in June.
In comparing the weather of September and July, it is evident that September experiences a broader range of temperatures, with a minimum of 11°C (52°F) and a maximum that can reach as high as 36°C (97°F). In contrast, July's temperatures are more moderate, ranging from a cooler 4°C (39°F) to a maximum of 30°C (86°F). Additionally, September sees higher average temperatures at around 20°C (68°F) compared to July's average of 17°C (63°F). Precipitation is also more prevalent in September, with 88 mm (3.5 in) over 11 days, while July records only 60 mm (2.4 in) over 7 days. This results in September being slightly less humid at 58%, whereas July has a higher humidity level of 72%. For more detailed information about July's weather, you can check this link: Bertioga weather in July.
In September, the weather heats up more significantly compared to August, with minimum temperatures rising from 7°C (44°F) in August to 11°C (52°F) and average highs reaching 36°C (97°F) against 31°C (89°F) in August. Additionally, September sees a decrease in total precipitation, with 88 mm (3.5 in) over 11 rainy days, compared to 114 mm (4.5 in) across 12 days in August. However, humidity levels are slightly lower in September at 58%, down from 65% in August, making it feel a bit less muggy. For further details on the August climate, you can visit Bertioga weather in August.
In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 36°C (97°F), with an average temperature of around 20°C (68°F). The month sees about 88 mm (3.5 in) of rain over 11 days, and the humidity levels hover around 58%. In contrast, October experiences slightly warmer conditions, with minimum temperatures rising to 13°C (56°F) and maximums reaching 37°C (99°F), leading to an average of 21°C (69°F). However, October also brings increased rainfall of 198 mm (7.8 in) over 21 days, accompanied by a drop in humidity to 50%. For more detailed information, check out this link: Bertioga weather in October.
September and November exhibit noticeable differences in weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 36°C (97°F), with an average of 20°C (68°F) and lower humidity at 58%. Precipitation in September totals 88 mm (3.5 in) over 11 days, indicating drier conditions. In contrast, November sees slightly warmer temperatures, with minima of 12°C (55°F) and maxima of 34°C (93°F), averaging around 21°C (69°F). However, it is also wetter, receiving 194 mm (7.6 in) of rain over 21 days, resulting in higher humidity levels at 75%. For more detailed weather information, you can visit Bertioga weather in November.
In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 36°C (97°F), with an average of 20°C (68°F). The month experiences 88 mm (3.5 in) of precipitation over 11 days and average humidity levels at 58%. In contrast, December sees slightly warmer temperatures with a minimum of 13°C (56°F) and a maximum of 33°C (92°F), averaging 22°C (73°F). However, it's significantly wetter, receiving 261 mm (10.3 in) of rain over 24 days, and the humidity rises to 80%. To learn more about the weather specifics in December, check out Bertioga weather in December.
As September unfolds in Bertioga, its weather sets itself apart from the rest of the year with notable fluctuations in temperature and a touch of humidity. The month sees a blend of warm days, peaking at 36°C (97°F), alongside cooler nights that can drop to a brisk 11°C (52°F). Although September experiences 88 mm of rainfall over 11 days, this precipitation is generally less than what many other months encounter. Overall, the weather in September offers a unique transition from the dry winter to the more humid summer months, making it an intriguing time for visitors and locals alike. For more insights, check out Bertioga Climate.