September Weather in Viradouro, Brazil

Last updated: August 21, 2025

In Viradouro, Brazil, September unveils a dynamic weather landscape characterized by a broad temperature range, with daytime highs soaring to 39°C (102°F), while the average temperature rests comfortably at 26°C (80°F), dipping to a cool 12°C (54°F) at night. The month experiences relatively low precipitation, accumulating just 25 mm (1.0 in) over about 2 days, resulting in a humidity level of 41% that can make the air feel warm yet pleasant. This combination of warmth and occasional rain establishes September as a transitional month, setting the stage for the vibrant summer ahead.

September Temperature in Viradouro

In Viradouro, Brazil, September ushers in a noticeable shift in temperatures as it transitions from the cooler winter months. With minimum temperatures rising to 12°C (54°F) and reaching a sunny average of 26°C (80°F), the month is characterized by a warming trend that hints at the approaching heat of summer. The maximum temperatures can soar to a sizzling 39°C (102°F), marking September as one of the hotter periods of the year, ideal for those who enjoy basking in the sun. This gradual increase not only sets the stage for the sweltering months ahead but also invites locals and visitors alike to relish in outdoor activities under bright blue skies. The warmth and vibrant atmosphere of September make it a delightful time to experience the rich culture of Viradouro.

September Weather in Viradouro: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Viradouro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viradouro, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec787778757171697379797878
Data source: Temperature data for Viradouro generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Viradouro

In Viradouro, Brazil, September marks a distinct transition in precipitation patterns, with a total of 25 mm (1.0 in) of rainfall spread over just two days. This is a noticeable increase from the drier months preceding it, including the almost rainless July and August, which saw only 7 mm and 15 mm respectively. As we move into the latter part of the year, it's clear that September serves as a gentle precursor to the more robust rainfall of October and November, which typically bring heavier downpours, measuring 102 mm and 156 mm respectively. This upward trend in precipitation signifies the onset of the rainy season, heralding a shift in the region’s weather dynamics, as the landscape eagerly anticipates the rejuvenation that accompanies increased rainfall.

September Precipitation Trends in Viradouro

The chart displays monthly precipitation patterns in Viradouro, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Viradouro, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec153159985926471525102157174
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Viradouro

September marks a significant shift in humidity levels in Viradouro, Brazil, where the atmosphere begins to dry out after the wetter months of the year. With humidity plummeting to 41%, it's the lowest point recorded in the annual cycle, reflecting a transition from the lush, moisture-laden air of the early year. This decline continues into October, dropping further to 35%, as the region prepares for the drier season ahead. The trend highlights a striking contrast to the high humidity of the preceding months, particularly January and February, where averages hover around 85-87%. As the air becomes crisper, Viradouro embraces a more comfortable climate, paving the way for the upcoming months when humidity levels gradually increase again.

September Average Humidity in Viradouro

This chart illustrates the average monthly humidity levels in Viradouro, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Viradouro is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%86%79%68%60%57%48%41%35%65%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Viradouro

In Viradouro, Brazil, the UV Index reaches its peak in the early months of the year, with extreme values of 16 in January and February, necessitating a burn time of just 10 minutes. As the seasons shift, there is a gradual decrease, with March and April still registering high levels at 13 and 11, respectively. Moving into May and June, the UV Index transitions to a very high and high category, allowing for slightly longer exposure times of 15 and 25 minutes. However, come September, it escalates back to an extreme level at 12, demanding caution with a burn time of just 10 minutes. This trend suggests that while the summer months present the greatest sun exposure risks, early spring and fall still require vigilance to protect against harmful UV rays. For detailed insights on UV exposure, check out Viradouro UV Index.

Maximum UV Index Levels in Viradouro for September

The chart shows the monthly maximum UV Index (UVI) for Viradouro in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Viradouro typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118781012141416
Data source: Viradouro September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Viradouro

September in Viradouro, Brazil, shines brightly with 316 hours of sunshine, continuing a delightful trend of consistent warmth and light that characterizes the region. This month’s sun hours mirror not only the vibrant spirit of late winter but also reflect a steady pattern observed throughout the year. From the bright 329 hours in March to the equally sunny days of October, the weather remains generous, rarely dipping below 294 hours from June onward. As summer approaches, residents experience an anticipatory warmth, as September gracefully bridges the transition, ensuring that the sun's embrace is felt just a bit longer each day. With such an abundance of sunshine, it’s no wonder that this time of year is cherished by locals and visitors alike.

Monthly Sunshine Duration in Viradouro: September Highlighted

The September sunshine duration represents the total number of hours Viradouro experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec249h278h329h307h307h294h316h314h316h308h308h316h
Data source: Viradouro September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Viradouro During September

In Viradouro, Brazil, September ushers in a notable transition toward sunnier weather, boasting a 66% chance of sunshine. This is a shift from the peak months of July and August, which enjoy higher probabilities of clear skies. As the dry season peaks, this month's likelihood of sun showcases the region's steady trend of increasing brightness, making it an ideal time for outdoor activities. September balances the tail end of winter's more overcast days with an inviting warmth, hinting at the vibrant weeks that lie ahead as the year continues to unfold.

Percentage of Sunny Days in September in Viradouro

The chart illustrates the percentage of sunny days in Viradouro throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Viradouro experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%42%40%65%56%68%84%74%66%42%38%49%
Data source: Viradouro September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Viradouro in September

As the seasons transition in Viradouro, Brazil, September brings a gentle stability with 11 hours of daylight, mirroring the pattern observed in both August and the following months of April and May. This period marks a gradual return to longer days as the sun begins to linger more, setting the stage for the brighter months ahead. January and November boast the longest daylight hours at 13 hours, while the depths of winter in June and July bring the shortest days at just 10 hours. Overall, September's daylight is part of a larger rhythm, hinting at the delightful shifts in sunlit hours that define the Brazilian calendar.

Average Daylight Hours in Viradouro for September

The chart illustrates the variation in daylight duration in Viradouro throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 13m12h 45m12h 10m11h 34m11h 6m10h 52m10h 59m11h 25m11h 58m12h 34m13h 6m13h 21m
Data source: Viradouro daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Viradouro

In September, Viradouro experiences a refreshing shift in its wind patterns, with an average speed of 2.8 m/s (6 mph), mirroring the breezy conditions of August. This consistency not only marks September as one of the windiest months of the year but also highlights an upward trend from the calmer earlier months, where average speeds hovered around 1.8 to 2.3 m/s (4 to 5 mph). As the year progresses towards the end, the winds tend to stabilize around 2.5 to 2.6 m/s (5 to 6 mph) in the following months, suggesting that while summer wanes, the dynamic coastal air remains invigorating. The gentle, yet steady breezes of September invite residents and visitors alike to enjoy the outdoors, celebrating the transition into a new season in this vibrant Brazilian locale.

Average September Wind Speed in Viradouro

The chart displays monthly wind speed patterns in Viradouro, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.91.82.32.12.22.42.82.8 m/s2.52.62.3
Data source: Viradouro September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Viradouro Compares to Other Months

Weather in Viradouro varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Viradouro, focusing on differences in temperature, rainfall, humidity, and UV levels.

September typically offers warmer and drier weather compared to January. With average temperatures around 26°C (80°F) and a maximum reaching up to 39°C (102°F), September has only 25 mm (1.0 in) of precipitation over just 2 days, and a humidity level of 41%. In contrast, January experiences a more moderate average temperature of 25°C (78°F) but is much wetter, with 153 mm (6.0 in) of precipitation spread across 16 days. The humidity also rises notably to 85%, contributing to a more humid and challenging climate. For more detailed information, you can visit Viradouro weather in January.

In September, temperatures are warmer with a minimum of 12°C and averaging around 26°C, reaching highs of 39°C. The month sees minimal rainfall, with only 25 mm of precipitation over just 2 days and a humidity level of 41%. In contrast, February experiences milder minimum temperatures of 17°C and averages slightly lower at 25°C, peaking at 35°C. However, it is significantly wetter, receiving 159 mm of rain across 16 days, and boasts a much higher humidity level of 87%. For a detailed look at February weather conditions, you can check Viradouro weather in February.

In September, the weather is generally warm and dry, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 39°C (102°F) and an average of 26°C (80°F). This month typically sees only 25 mm (1.0 in) of precipitation over just 2 days, resulting in a relatively low humidity of 41%. In contrast, March experiences a more humid and wetter climate, with temperatures starting from a minimum of 16°C (61°F) and peaking at 34°C (94°F), maintaining the same average of 26°C (78°F). Notably, March has significantly higher precipitation at 98 mm (3.9 in) over 13 days, leading to a much higher humidity level of 86%. For more details on the specifics of the weather in March, you can check Viradouro weather in March.

When comparing the weather in September and April, we see notable differences. September typically features warmer temperatures, with averages reaching 26°C (80°F) and maximums soaring up to 39°C (102°F), while April has slightly cooler averages of 24°C (76°F) and a maximum of 34°C (93°F). Additionally, September experiences lower precipitation levels, with only 25 mm (1.0 in) over 2 days, compared to April, which sees 59 mm (2.3 in) across 6 days, resulting in significantly higher humidity at 79%. For more specific details on the weather during this time, you can check out Viradouro weather in April.

In comparing the weather of September and May, September tends to be warmer, featuring an average temperature of 26°C (80°F) and maximum highs reaching up to 39°C (102°F). In contrast, May’s temperatures are milder, with an average of 21°C (71°F) and highs of 33°C (91°F). Although both months have similar precipitation levels, September is slightly drier with only 25 mm (1.0 in) over 2 days, compared to May’s 26 mm (1.0 in) over 3 days. Additionally, the humidity is notably lower in September at 41%, while May experiences a higher humidity level of 68%. For a detailed look at the weather patterns, you can visit Viradouro weather in May.

In comparing the weather of September and June, September typically experiences warmer temperatures, with a minimum of 12°C (54°F) and an average high reaching up to 39°C (102°F). In contrast, June tends to be cooler, with a minimum temperature of 9°C (48°F) and an average high of 31°C (88°F). Additionally, September has significantly less humidity at 41%, compared to June's 60%, making the latter feel more humid and sticky. Precipitation is also rare in both months, but September sees slightly more rainfall at 25 mm (1.0 in) over 2 days, while June only accumulates 3 mm (0.1 in) in just one day. For more specific details about June weather, you can check Viradouro weather in June.

In comparing the weather between September and July, September generally experiences warmer temperatures, with a minimum of 12°C (54°F) and an average high reaching 39°C (102°F), contrasting sharply with July's cooler minima of 3°C (38°F) and an average maximum of 32°C (89°F). Additionally, September has slightly higher humidity at 41%, compared to July's 57%, leading to a drier feel during the former month with only 25 mm (1.0 in) of precipitation over just 2 days, while July enjoys a drier spell with only 7 mm (0.3 in) and no rainy days at all. For a more detailed look at July weather, you can refer to the following link: Viradouro weather in July.

In comparing the weather of September to that of August, September tends to be warmer overall. The minimum temperature in September is higher at 12°C (54°F) compared to August's 8°C (47°F), while the average temperature increases to 26°C (80°F) from August's 23°C (73°F). The maximum temperature also sees a significant rise, reaching 39°C (102°F) in September, compared to 35°C (96°F) in August. Precipitation is slightly higher in September at 25 mm (1.0 in), but both months experience rain on the same number of days—just 2. Notably, humidity is lower in September at 41%, while August maintains a higher humidity level of 48%. For more details on August's weather, visit Viradouro weather in August.

September and October display notable differences in weather patterns. September typically features warm temperatures, with a minimum of 12°C (54°F), an average of 26°C (80°F), and a maximum reaching up to 39°C (102°F). During this month, there is minimal precipitation, totaling only 25 mm (1.0 in) over just 2 days, and humidity stands at 41%. In contrast, October experiences slightly cooler mornings with a minimum of 15°C (60°F) while maintaining the same average of 26°C (80°F) and seeing a peak of 40°C (105°F). However, October is significantly wetter, receiving 102 mm (4.0 in) of rainfall over 12 days, and humidity decreases to 35%. For more detailed insights, you can check Viradouro weather in October.

In September, the weather is typically warm, with average temperatures reaching 26°C (80°F) and highs soaring up to 39°C (102°F). The month experiences relatively low precipitation, with only 25 mm (1.0 in) falling over a couple of days and humidity at a comfortable 41%. In contrast, November sees slightly cooler average temperatures at 25°C (78°F), but higher humidity at 65%. The month is marked by significantly increased rainfall, totaling 156 mm (6.2 in) over 16 days, creating a stark contrast in climate conditions compared to September. For more detailed weather information, you can check Viradouro weather in November.

In comparing the weather between September and December, we see noticeable differences in temperature and precipitation. September boasts a warmer average temperature of 26°C (80°F), with a maximum reaching up to 39°C (102°F), while December has a slightly cooler average of 25°C (78°F) and a maximum of 35°C (95°F). However, December is significantly wetter, receiving 173 mm (6.8 inches) of precipitation over 19 days, compared to just 25 mm (1.0 inch) in September over 2 days. Additionally, December's humidity rises to 80%, in contrast to September's lower 41%. For more details, check out Viradouro weather in December.

Compare Viradouro's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Viradouro

As September unfolds in Viradouro, it brings a noticeable shift in weather patterns compared to the preceding months. The warm temperatures are complemented by a comfortable average, making outdoor activities more enjoyable. With only two days of rainfall and relatively low humidity, this month stands out for its dry and pleasant conditions. The transition from the cooler winter months to this warmer yet manageable climate sets the stage for vibrant late-spring activities. For more insights on the weather dynamics you'll experience in this region, explore the detailed information at Viradouro Climate.