Last updated: August 21, 2025
September in São Vicente, Brazil, offers a delightful blend of warm weather and occasional rain showers. With maximum temperatures soaring up to 37°C (99°F) and a comfortable average of 21°C (70°F), visitors can enjoy sunny days and mild evenings. However, be prepared for some precipitation, as the month typically sees 85 mm (3.3 in) of rain over 13 days, resulting in a humidity level of 78%. This combination of warmth and moisture enhances the lush tropical scenery, making September an exciting time to experience the beauty of São Vicente.
In September, São Vicente enjoys a delightful transition in temperatures as it edges towards the warmer months. The minimum temperature rises slightly to 12°C (54°F), offering a comfortable start to the day, while the average settles at a pleasant 21°C (70°F). Daytime temperatures can still reach up to 37°C (99°F), reflecting the tail end of winter and hinting at the approaching heat of spring. This month marks a gradual upward trend in warmth, following the cooler chill of July and August, making it an ideal time for outdoor activities as the city prepares for the summer sun ahead.
In September, São Vicente experiences a noticeable dip in precipitation, receiving 85 mm (3.3 in) of rain over approximately 13 days. This is a continuation of a downward trend from the preceding months, where heavier rains marked the late summer, exemplified by a peak of 302 mm (11.9 in) in February. Following the intense rainy season, rainfall tapers off significantly, with September's totals reflecting a shift towards the drier months of October and November. Despite this decrease, the sporadic showers throughout the month serve as a gentle transition, easing the region into the drier season ahead, while still maintaining a lush, vibrant landscape.
September in Sao Vicente, Brazil, marks a transition into drier conditions, with humidity levels stabilizing at 78%—a continuation of the downward trend from the peak of 89% in January. This month aligns with the tail end of the drier winter period, showcasing a gradual moderation in moisture compared to the summer months. Interestingly, as the seasons shift, the humidity begins to rise again, with a noticeable increase forecasted for November, where it jumps back to 85%. Overall, September reflects a balance between moisture and comfort, setting the stage for the warmer, more humid months ahead.
In September, São Vicente experiences a UV Index of 11, placing it in the extreme exposure category with a burn time of just 10 minutes. This trend follows a pattern seen throughout the year, where the UV Index consistently remains high, particularly from January to April, peaking at 15 in January. The intensity slightly dips in May and June before rising again in September and continuing through October and November. With these high levels, it's crucial for residents and visitors alike to take protective measures to shield against harmful UV radiation. For a deeper understanding of daily exposure, visit Sao Vicente UV Index.
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In Sao Vicente, Brazil, September basks in the warmth of 274 hours of sunshine, a delightful precursor to the sun-soaked months ahead. As the year progresses, sunlight seems to peak during the late spring and early summer, with December claiming the crown with an impressive 317 hours. Notably, September aligns with a consistent pattern of abundant sunshine that characterizes the tail end of winter, surpassing the cooler months of April and June. This trend of increasing daylight continues through the vibrant months of October and November, creating a welcoming atmosphere for both locals and visitors eager to embrace the sunny shores.
September in São Vicente, Brazil, sees a 30% chance of sunny weather, marking a slight drop from the sunnier months of July and August, which boast probabilities of 55% and 45% respectively. This transition hints at the onset of more overcast days as the city begins to shift away from the peak winter months. Although September offers a moderate chance of sunshine compared to earlier summer months like January, which only sees a mere 12%, the likelihood of sun remains higher than the approaching October, known for its further decline to 15%. Thus, while September may not be the sunniest month, it still gives residents and visitors a fair chance to bask in the warm rays before the cloudier days of fall set in.
In Sao Vicente, Brazil, the daylight duration gradually shifts throughout the year, showcasing a beautiful interplay between light and darkness. Starting with a generous 13 hours of daylight in January, the months of February and March see a slight decline to 12 hours, as if welcoming the upcoming transition into autumn. By April, the daylight dips to 11 hours, hinting at the shorter days ahead. During the winter months of May, June, and July, daylight plateaus at 10 hours, creating a cozy atmosphere that is characteristic of this season. As spring approaches in August, daylight begins to extend once more, reaching 11 hours again by September, and then climbing back to 12 hours in October. This gradual increase continues into the end of the year, culminating in 13 hours of sunlit days in both November and December, perfectly aligning with the festive spirit of the holiday season. This cyclical rhythm of daylight not only defines the local climate but also enriches the vibrant lifestyle of Sao Vicente’s residents.
In September in São Vicente, Brazil, the winds become notably more invigorating, with an average speed of 2.3 m/s (5 mph), marking a slight rise from the previous months. This gentle increase is part of a broader trend observed as the year progresses, with wind speeds gradually ascending from 1.6 m/s (4 mph) in March to a robust 2.7 m/s (6 mph) by October. The transition from the calmer conditions of winter towards the more dynamic breezes of spring creates a refreshing atmosphere, perfect for outdoor activities. With each passing month, the winds whisper promises of vitality, making September a delightful precursor to the more spirited gusts that lie ahead.
Weather in Sao Vicente varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sao Vicente, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by a milder temperature range, with minimums around 12°C (54°F) and maximums reaching up to 37°C (99°F), providing an average of 21°C (70°F). However, this month sees around 85 mm (3.3 in) of precipitation across 13 days, with humidity levels at 78%. In contrast, January experiences warmer temperatures, with minimums at 17°C (63°F) and maximums still peaking at 37°C (98°F), averaging 26°C (79°F). This month is noticeably wetter, receiving about 268 mm (10.6 in) of rain over 22 days, alongside higher humidity levels at 89%. To learn more about the weather patterns, you can check out Sao Vicente weather in January.
September and February weather in the region show notable differences in temperature and precipitation. September experiences a minimum temperature of 12°C (54°F) with an average of 21°C (70°F) and a maximum reach of 37°C (99°F). It also sees about 85 mm (3.3 in) of rainfall over 13 days, with humidity levels at 78%. In contrast, February is warmer with a minimum of 18°C (64°F), an average temperature of 25°C (77°F), and the same maximum of 37°C (99°F). However, February is much wetter, receiving a substantial 302 mm (11.9 in) of rainfall across 22 days and slightly higher humidity at 87%. For more detailed insights, you can check Sao Vicente weather in February.
In comparing the weather between September and March, March tends to be warmer overall, with average temperatures reaching 25°C (77°F) compared to September's average of 21°C (70°F). Additionally, March features higher minimum temperatures, starting at 17°C (62°F) versus September's 12°C (54°F). However, September holds the record for the highest maximum temperature, peaking at 37°C (99°F) in contrast to March’s maximum of 35°C (95°F). Notably, March experiences significantly more rainfall, with 281 mm (11.1 in) over 23 days, compared to September's 85 mm (3.3 in) over 13 days. The humidity is slightly higher in March at 86% compared to September's 78%. For more details on the specific conditions in March, you can visit Sao Vicente weather in March.
In comparing the weather of September and April, we observe some key differences. September experiences a wider temperature range, with minimums around 12°C (54°F) and maximums reaching up to 37°C (99°F), while April presents more consistent warmth, starting with a minimum of 15°C (60°F) and peaking at 36°C (97°F). Precipitation also varies, as September sees 85 mm (3.3 in) over 13 days, compared to April, which has significantly higher rainfall at 139 mm (5.5 in) spread across 16 days. Additionally, humidity levels are slightly higher in April at 84%, versus September's 78%. For more detailed weather insights, visit Sao Vicente weather in April.
When comparing the weather conditions in September and May, both months exhibit similar average temperatures around 21°C (70°F). However, September experiences a wider temperature range, with maximums reaching up to 37°C (99°F), while May's maximum is more moderate at 31°C (88°F). Precipitation levels are higher in May, with 119 mm (4.7 in) over 12 days compared to 85 mm (3.3 in) over 13 days in September. Furthermore, humidity is slightly higher in May at 84%, compared to 78% in September. For those looking to explore the specifics of Sao Vicente's weather during this month, further information can be found here: Sao Vicente weather in May.
In September, the weather features a broader temperature range with a minimum of 12°C (54°F) and a maximum of 37°C (99°F), leading to an average of 21°C (70°F). This month also sees more precipitation, totaling 85 mm (3.3 in) over 13 days, coupled with relatively high humidity at 78%. In contrast, June presents slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 32°C (90°F), resulting in an average of 20°C (68°F). Although June has a higher total precipitation of 97 mm (3.8 in) over 11 days, the humidity is marginally higher at 82%. For a detailed look at June's weather, visit Sao Vicente weather in June.
When comparing the weather in September to that of July, September tends to be warmer overall, with average temperatures reaching 21°C (70°F) compared to July's 19°C (66°F). The minimum temperature in September is also higher at 12°C (54°F) against July's 7°C (44°F). In terms of extremes, September can reach a maximum of 37°C (99°F), whereas July peaks at a much cooler 32°C (91°F). Additionally, September experiences more precipitation, totaling 85 mm (3.3 in) over 13 days, compared to July's 62 mm (2.4 in) over just 8 days. Humidity levels are similar in both months, with September at 78% and July slightly higher at 80%. For further details on July weather, you can refer to Sao Vicente weather in July.
In comparing the weather of September and August, we see a noticeable increase in temperatures as September features a minimum of 12°C (54°F), an average of 21°C (70°F), and a maximum of 37°C (99°F), compared to August's warmer minimum of 10°C (51°F), average of 19°C (66°F), and peak of 34°C (93°F). Additionally, September experiences slightly less precipitation at 85 mm (3.3 in) over 13 days, while August records higher rainfall with 99 mm (3.9 in) across 11 days. Both months maintain the same humidity level of 78%. For a more detailed glimpse at August weather, you can check Sao Vicente weather in August.
September and October exhibit notable variations in weather patterns. In September, temperatures range from a minimum of 12°C (54°F) to a maximum of 37°C (99°F), with an average temperature of 21°C (70°F). The month experiences approximately 85 mm (3.3 in) of precipitation over 13 days, accompanied by a humidity level of 78%. In contrast, October features slightly warmer temperatures, with a minimum of 15°C (59°F), an average of 22°C (72°F), and a maximum of 38°C (101°F). However, October also sees a significant increase in rainfall, reaching 181 mm (7.1 in) over 19 days, while the humidity decreases slightly to 76%. For more details on October weather specifics, you can refer to Sao Vicente weather in October.
In September, the weather features a warm average temperature of 21°C (70°F) with a maximum of 37°C (99°F), accompanied by 85 mm (3.3 in) of precipitation over 13 days and a humidity level of 78%. In contrast, November experiences a slightly cooler average temperature of 22°C (72°F) and a maximum of 35°C (95°F), but sees an increase in rainfall to 143 mm (5.6 in) spread across 19 days, along with a higher humidity at 85%. These differences highlight a trend towards wetter and more humid conditions as the year progresses. For more details, you can check the Sao Vicente weather in November.
In September, the weather features a range of temperatures with a minimum of 12°C (54°F) and an average of 21°C (70°F), peaking at a high of 37°C (99°F). The month experiences moderate rainfall, totaling 85 mm (3.3 in) over 13 days, with humidity levels around 78%. In contrast, December sees slightly warmer temperatures, with a minimum of 16°C (61°F) and an average of 24°C (76°F), while the maximum reaches 35°C (95°F). However, precipitation is significantly increased to 193 mm (7.6 in) over 23 days, and humidity rises to 87%. For more details on December weather in this region, you can visit Sao Vicente weather in December.
September in Sao Vicente marks a transition into the warmer months, characterised by a noticeable uptick in temperatures and a backdrop of increased humidity. With the weather fluctuating between comfortable averages and the occasional peak, visitors can expect significant warmth, making it quite distinct from the cooler previous months. Rainfall remains a component to consider, as the city experiences a moderate amount of precipitation over a good portion of the month, distinguishing it from the drier summer months ahead. This blend of warmth and moisture creates a unique atmosphere that sets the stage for the vibrant seasons to come. For more detailed information on the local weather patterns, check out Sao Vicente Climate.