Last updated: August 21, 2025
September in Santana de Parnaíba, Brazil brings a delightful transition of temperatures, with maximums soaring to 35°C (95°F) while maintaining a comfortable average of 20°C (69°F). Visitors can expect cooler nights, dipping to 8°C (47°F), making it a perfect time for outdoor exploration. Despite experiencing 6 days of light rain, totaling about 38 mm (1.5 in), the month showcases a moderate 58% humidity, contributing to a pleasant overall climate. Embrace the mild weather and vibrant surroundings as you discover the charm of this Brazilian gem!
In September, Santana de Parnaíba experiences a transition towards warmer weather, with temperatures ranging from a minimum of 8°C (47°F) to a sizzling maximum of 35°C (95°F). The average temperature rises to 20°C (69°F), reflecting the shift from the cooler winter months as the region approaches spring. This month marks a notable increase in warmth compared to August, where temperatures peaked at 32°C (89°F). As the days grow longer and sunnier, visitors can expect a delightful blend of comfortable mornings and hot afternoons, making it an ideal time for outdoor activities and exploration in this vibrant Brazilian locale.
September in Santana de Parnaíba sees a modest precipitation amount of 38 mm (1.5 in), marking a notable decrease from the wetter peak months earlier in the year. With rainfall occurring over just 6 days, the month is relatively dry compared to January's high of 19 rainy days. This dip in precipitation reflects a consistent trend, as September transitions away from the heavy rains of winter, setting the stage for the upcoming spring. As the year progresses, we see October and November bouncing back with their higher precipitation levels, creating a dynamic contrast in Santana de Parnaíba's climate.
As September rolls around in Santana de Parnaíba, Brazil, the humidity begins to dip noticeably to 58%, marking a shift towards drier conditions after the wetter months of the year. This decrease reflects a broader trend as humidity levels gradually decline from the peak of 88% observed in January and February to a more comfortable range by October, when it hits 50%. The transition from the high humidity of winter to the more moderate levels of late spring showcases the region's seasonal changes, offering a refreshing respite in September before the humidity starts to rise again toward the end of the year.
In September, Santana de Parnaíba experiences a UV Index of 11, categorizing it as extreme with a burn time of just 10 minutes. This marks a return to the higher UV levels seen in earlier months, following a brief dip during the winter, where the index ranged from 6 to 9. As the city transitions into spring, UV exposure remains a significant concern, similar to the preceding months of April and October. Observing these trends, it's crucial to take precautions against UV radiation, especially as summer approaches. For more detailed information, visit the Santana de Parnaiba UV Index.
UV Risk Categories
September in Santana de Parnaíba, Brazil, shines brightly with 292 hours of sunshine, matching the vibrancy of summer. This month ties with July as one of the sunniest periods of the year, following a trend of increasing daylight that builds from the more moderate hours of June. As the year transitions into its later months, daily light keeps the optimism alive in this charming locale, serving as a prelude to the longer sun-soaked days of October and November. The consistency in sunshine throughout the year, peaking in March and December, showcases Santana de Parnaíba's welcoming climate, making it an inviting destination for sun-seekers and outdoor enthusiasts alike.
In September, Santana de Parnaíba experiences a moderately promising chance of sunny weather, with 44% likelihood of clear skies. This trend showcases a slight decrease from the sunnier months of July and August, which boast 58% and 48% chances, respectively. As the year transitions from the dry to the wetter season, September maintains a favorable climate for those seeking sunshine, particularly compared to the upcoming months of October, which dips to 14% likelihood of sun. Overall, September serves as a bridge between the peak of winter sunshine and the impending rainfall, making it an appealing time for outdoor activities while still enjoying a favorable weather window.
As September rolls in, Santana de Parnaiba, Brazil, enjoys a cozy 11 hours of daylight, signaling a transition from the winter months. Following the consistent ten hours of daylight seen in June and July, the days begin to lengthen again in August, paving the way for the steady 11 hours maintained in both August and September. This trend of increasing daylight continues into October, where the region welcomes an additional hour of sunlight. With the daylight duration gradually returning to its earlier summer highs of 13 hours in November and December, September serves as a gentle reminder that brighter days are just around the corner, enhancing the natural beauty and vibrant lifestyle of this Brazilian locale.
As September arrives in Santana de Parnaíba, Brazil, a noticeable shift in the breeze begins to unfold. With an average wind speed of 3.4 m/s (8 mph), September marks the start of a gentle uptick in airflow that continues into the following months. This year, the winds are stronger than in the previous summer months, reflecting a trend of increasing wind speeds as the seasons transition. Following September, October brings an even brisker pace at 3.7 m/s (8 mph), while November maintains this energy with 3.6 m/s (8 mph). This pattern highlights a gradual escalation in wind strength, enhancing the charm of the region as it moves into the heart of spring.
Weather in Santana de Parnaiba varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santana de Parnaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is generally warmer during the day, with average temperatures around 20°C (69°F) and maximums reaching up to 35°C (95°F). However, it experiences relatively low precipitation, totaling 38 mm (1.5 in) over about six days, and the humidity sits at a comfortable 58%. In contrast, January presents a warmer and wetter climate, with a minimum temperature of 15°C (59°F) and an average of 23°C (74°F). This month sees significantly higher rainfall, accumulating 175 mm (6.9 in) over 19 days, along with increased humidity at 88%. For detailed insights, check Santana de Parnaiba weather in January.
When comparing the weather in September and February, notable differences emerge. September experiences a wider temperature range, with minimums dropping to 8°C (47°F) and maximums reaching up to 35°C (95°F), while February maintains a generally warmer profile with minimum temperatures starting at 15°C (59°F) and similar maximums of 35°C (95°F). Precipitation levels also differ significantly; September sees only 38 mm (1.5 in) of rain over six days, whereas February is much wetter, with 159 mm (6.3 in) spread across 17 days, contributing to a higher humidity level of 88%. For those interested in specifics about February's weather patterns, you can refer to Santana de Parnaiba weather in February.
September and March present quite different weather patterns. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average of 20°C (69°F). The month experiences 38 mm (1.5 in) of precipitation over 6 days and has a humidity level of 58%. In contrast, March offers warmer conditions, with minimum temperatures around 13°C (56°F) and maximums reaching 33°C (91°F), averaging at 22°C (73°F). This month is notably wetter, receiving 129 mm (5.1 in) of rain over 15 days, and boasts a higher humidity of 87%. For more detailed insights, you can check out Santana de Parnaiba weather in March.
When comparing the weather in September and April, we see some notable differences. September typically features a broader temperature range, with minimums dropping to around 8°C (47°F) and maximums reaching up to 35°C (95°F), while April has slightly higher min temperatures of 11°C (52°F) and max temperatures of 31°C (88°F). Precipitation in April is also higher, averaging 54 mm (2.1 in) over 7 days compared to September’s 38 mm (1.5 in) over 6 days. Additionally, April experiences a higher humidity level at 84%, compared to September's 58%. For more detailed weather insights, you can check Santana de Parnaiba weather in April.
In comparing the weather of September and May, we see notable differences in temperature and humidity. September tends to be warmer, with average temperatures around 20°C (69°F) and maximums reaching up to 35°C (95°F), while May has a cooler average of 18°C (65°F) and a maximum of 30°C (86°F). Additionally, September experiences slightly less precipitation, averaging 38 mm (1.5 in) over 6 days, compared to May's 46 mm (1.8 in) over 5 days. The humidity levels are also higher in May at 79%, compared to 58% in September, giving May a more humid feel. For a closer look at May's weather specifics, you can visit Santana de Parnaiba weather in May.
When comparing the weather in September to that of June, several notable differences emerge. September tends to be warmer overall, with average temperatures reaching 20°C (69°F) compared to June's 18°C (64°F). The maximum temperatures in September can soar up to 35°C (95°F), significantly higher than June's peak of 27°C (82°F). However, June experiences greater humidity at 77%, which contributes to a more uncomfortable heat, while September has a relatively lower humidity of 58%. Precipitation is slightly higher in June, with 46 mm (1.8 in) over 5 days, compared to September's 38 mm (1.5 in) across 6 days. For a more detailed look at June weather, you can check Santana de Parnaiba weather in June.
In comparing the weather between July and September, it's evident that September experiences a wider temperature range, with minimums reaching 8°C (47°F) and maximums soaring to 35°C (95°F), culminating in an average of 20°C (69°F). In contrast, July features cooler temperatures, with minimums dropping as low as 1°C (34°F) and an average of 17°C (62°F), peaking at 29°C (84°F). Additionally, September sees more precipitation, with 38 mm (1.5 in) over 6 days, while July has less rainfall at 24 mm (0.9 in) within just 2 days. Humidity levels are higher in July at 72%, compared to September’s 58%. For more detailed information, you can visit Santana de Parnaiba weather in July.
In comparing the weather of September and August, September enjoys slightly warmer temperatures with a minimum of 8°C (47°F) and an average of 20°C (69°F), compared to August's minimum of 6°C (42°F) and an average of 17°C (63°F). This increase in temperature extends to maximums as well, with September reaching up to 35°C (95°F), while August peaks at 32°C (89°F). Precipitation is reduced in September, totaling 38 mm (1.5 in) over 6 days, compared to 55 mm (2.2 in) during the same number of days in August. Moreover, humidity levels are slightly lower in September at 58%, compared to 65% in August, indicating a marginally drier feel. For a more detailed look at August weather, you can visit Santana de Parnaiba weather in August.
September and October exhibit distinct differences in weather patterns. September typically features a range of temperatures from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), averaging around 20°C (69°F). The month sees relatively low precipitation, totaling 38 mm (1.5 in) over about 6 days, with humidity levels around 58%. In contrast, October experiences slightly warmer temperatures, with a minimum of 12°C (53°F) and a maximum of 37°C (99°F), averaging 21°C (70°F). However, October also brings significantly more rainfall, reaching 115 mm (4.5 in) across 15 days, and humidity drops to 50%. For more details, you can check Santana de Parnaiba weather in October.
In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average of 20°C (69°F). The month experiences relatively low precipitation at 38 mm (1.5 in), occurring only on 6 days, and humidity stands at a moderate 58%. In contrast, November sees slightly warmer temperatures, with a minimum of 11°C (52°F), averaging 21°C (69°F) and peaking at the same maximum of 35°C (95°F). However, November is much wetter, boasting 119 mm (4.7 in) of rain over 14 days, and higher humidity levels at 75%. For more specific weather details in this month, you can check Santana de Parnaiba weather in November.
In comparing the weather between September and December, it is evident that December tends to be warmer and more humid. September experiences temperatures ranging from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average temperature of 20°C (69°F). The precipitation in September is relatively low at 38 mm (1.5 in) over six days, and humidity levels sit around 58%.
In contrast, December boasts a higher minimum temperature of 12°C (54°F) and a higher average of 22°C (72°F), while the maximum reaches up to 34°C (93°F). However, it also brings significantly more rainfall, with precipitation totaling 149 mm (5.9 in) spread over 20 days and humidity rising to 80%. For more detailed information, you can check the Santana de Parnaiba weather in December.
As September rolls in, Santana de Parnaíba experiences a refreshing transition from the winter chill to the warmth of spring, making it a unique time of year. With average temperatures settling at a comfortable 20°C (69°F), the days grow notably warmer, occasionally peaking at a sweltering 35°C (95°F). This month is characterized by a moderate level of precipitation, with about 38 mm spread across a few rainy days, contributing to the bloom of spring flora. Humidity levels hover around 58%, adding a slightly tropical feel to the air. Overall, September marks a delightful shift, offering a blend of warmth and occasional showers, setting the stage for the lively months to come. For a deeper understanding of what weather awaits you in Santana de Parnaíba, explore the detailed insights at Santana de Parnaiba Climate.