September Weather in Capitolio, Brazil

Last updated: August 21, 2025

In September, Capitolio, Brazil, offers a delightful mix of temperatures and weather conditions. With maximums reaching 37°C (98°F) and an average of 23°C (74°F), the days are predominantly warm, while nights can be refreshingly cool with lows around 11°C (52°F). The month sees a moderate precipitation of 29 mm (1.2 in) spread across three days, contributing to a humidity level of 49% that enhances the lush landscapes. This combination of warm days and cooler nights makes September an ideal time to explore the natural beauty of Capitolio.

September Temperature in Capitolio

In September, Capitolio, Brazil experiences a notable shift in temperatures as the region transitions into spring. With minimums around 11°C (52°F) and an average temperature rising to 23°C (74°F), visitors can expect milder days. However, the month can also surprise with maximum temperatures soaring up to 37°C (98°F), indicating a movement towards warmer weather compared to the cooler winter months of July and August. This warming trend not only enhances the overall climate but also sets the stage for outdoor adventures, making September an ideal time to explore the stunning natural beauty of Capitolio. As the temperatures climb, the vibrant scenery becomes even more inviting.

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

The chart illustrates September temperature patterns in Capitolio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Capitolio, 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).
JanFebMarAprMayJunJulAugSepOctNovDec757475726867646774747374
Data source: Temperature data for Capitolio generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Capitolio

In September, Capitolio experiences a moderate shift in its precipitation pattern, receiving 29 mm (1.2 in) of rainfall over three days. This marks a slight increase from the drier months of July and August, which had minimal rainfall, highlighting a gradual transition towards the wetter season. As the city heads into the more precipitation-heavy months of October and November, which see substantially higher averages of 134 mm (5.3 in) and 205 mm (8.1 in) respectively, September serves as a gentle precursor, signaling the end of the dry season. The overall trend shows a significant rise in rainfall beginning in late spring and continuing through the months, shaping Capitolio's lush landscape as it moves into the heart of the rainy season.

September Precipitation Trends in Capitolio

The chart displays monthly precipitation patterns in Capitolio, 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 Capitolio, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1632201274632731329134205234
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Capitolio

In September, Capitolio, Brazil, experiences a notable shift in humidity, dropping to a comfortable 49%. This decrease marks a significant transition from the high levels seen at the start of the year, where humidity hovered around 85% to 87% from January to March. As summer gives way to the fall, humidity continues its downward trend, reaching a pleasant low in September before stabilizing again in late fall. This pattern not only enhances outdoor activities but also signifies the region's shift towards drier conditions, leading to more enjoyable weather as the year progresses.

September Average Humidity in Capitolio

This chart illustrates the average monthly humidity levels in Capitolio, 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 Capitolio is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%87%80%74%72%67%58%49%36%65%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Capitolio

In September, Capitolio, Brazil experiences a UV Index of 12, placing it in the extreme exposure category with a burn time of just 10 minutes. This month continues a trend of high UV levels that began in earlier months, notably January and February, which both recorded the maximum index of 16. Following a slight dip in May and June, the UV Index rebounds in September, emphasizing the need for sun protection as summer approaches. With the UV Index in Capitolio consistently high throughout much of the year, especially during the spring months, it's crucial for residents and visitors alike to stay vigilant about sun safety. For more detailed information, visit Capitolio UV Index.

Maximum UV Index Levels in Capitolio for September

The chart shows the monthly maximum UV Index (UVI) for Capitolio 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 Capitolio typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161614129781112141516
Data source: Capitolio 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 Capitolio

As September rolls into Capitolio, Brazil, residents and visitors alike are treated to an impressive 318 hours of sunshine, tying it with July as the sunniest month of the year. This peak in radiant days follows a delightful summer, where sunshine steadily increased from January's 260 hours to a high point in March. The warmth of the sun seems to linger through the late summer months, with August clocking in at 309 hours. This consistent abundance of sunshine fosters an inviting atmosphere for outdoor activities, making September a perfect time to explore the stunning landscapes or enjoy the shimmering waters of this beautiful region. With the arrival of autumn, while sunshine hours begin to decline in October, September remains a captivating month, showcasing the brilliance of Capitolio's sunny disposition.

Monthly Sunshine Duration in Capitolio: September Highlighted

The September sunshine duration represents the total number of hours Capitolio 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.
JanFebMarAprMayJunJulAugSepOctNovDec260h266h312h299h297h295h318h309h318h289h273h286h
Data source: Capitolio September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Capitolio During September

September in Capitolio, Brazil offers a promising chance of sun, with approximately 66% likelihood of clear skies. This seasonal trend follows a peak in sunny days during the mid-year months, where July boasts an impressive 87% chance, gradually tapering off into the fall months. Following the warmth of August, September retains a substantial amount of sunshine, making it a delightful time to explore the region’s natural beauty. As the year progresses, however, the chance of sunny weather dwindles, with both October and November seeing significantly lower percentages. Therefore, September stands out as a golden opportunity for sun-seekers looking to bask in Capitolio's stunning landscapes.

Percentage of Sunny Days in September in Capitolio

The chart illustrates the percentage of sunny days in Capitolio 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 Capitolio experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%31%39%62%53%66%87%72%66%26%34%38%
Data source: Capitolio September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Capitolio in September

In Capitolio, Brazil, September ushers in a steady rhythm of daylight, offering 11 hours of light as the seasons begin to shift. After the long days of summer in January and February, daylight gradually decreases, reaching its nadir in June with just 10 hours. However, by September, the daylight duration stabilizes, echoing the length experienced in the surrounding months of April, May, and August. This consistency sets the stage for a gradual increase again in October, welcoming 12 hours of daylight. As the year progresses, Capitolio experiences a beautiful ebb and flow of light, reflecting the natural cycles of the region.

Average Daylight Hours in Capitolio for September

The chart illustrates the variation in daylight duration in Capitolio throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 11m12h 44m12h 10m11h 35m11h 7m10h 53m11h11h 25m11h 58m12h 33m13h 4m13h 20m
Data source: Capitolio daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Capitolio

As September arrives in Capitolio, Brazil, the atmosphere begins to shift with the wind picking up slightly to an average speed of 2.5 m/s (6 mph), marking it as the breeziest month since the start of the year. This increase signals a gradual transition as the region closes the door on winter, following a steady climb from the mild gusts of 1.7 m/s (4 mph) earlier in the year. With the winds gaining strength progressively throughout the months, from 1.8 m/s in June to this peak in September, it’s clear that fall is ushering in a refreshing breeze that complements the stunning landscapes. As autumn approaches, Capitolio's winds not only invigorate the air but also enhance the charm of its scenic beauty, creating an inviting atmosphere for locals and visitors alike.

Average September Wind Speed in Capitolio

The chart displays monthly wind speed patterns in Capitolio, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.71.71.91.71.82.22.42.5 m/s2.32.12.1
Data source: Capitolio September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Capitolio Compares to Other Months

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

September and January showcase distinctly different weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 37°C (98°F), with an average of 23°C (74°F). The month experiences low precipitation, totaling 29 mm (1.2 in) over just three days, and the humidity stands at a comfortable 49%. In contrast, January boasts warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 33°C (93°F), averaging 24°C (75°F). However, it is significantly wetter, receiving 163 mm (6.4 in) of rain spread over 15 days, alongside much higher humidity at 85%. For a detailed look at the weather specifics, check out Capitolio weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a mild 11°C (52°F) at night to a warm 37°C (98°F) during the day, with an average of 23°C (74°F). The month sees relatively low precipitation, totaling only 29 mm (1.2 inches) over just three days, and humidity is a comfortable 49%. In stark contrast, February experiences warmer minimum temperatures of 17°C (63°F) and a maximum of 34°C (93°F), while maintaining the same average temperature of 23°C (74°F). However, it is much wetter, with total precipitation soaring to 220 mm (8.6 inches) across 20 days, resulting in a much higher humidity level of 87%. For a more detailed look at February conditions, you can check Capitolio weather in February.

September and March exhibit distinct weather characteristics. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 37°C (98°F), with an average of 23°C (74°F) and relatively low humidity at 49%. Precipitation during this month is minimal, with only 29 mm (1.2 in) falling over just 3 days. In contrast, March sees higher temperatures, with a minimum of 15°C (59°F) and a maximum of 32°C (90°F), while the average temperature remains similar at 24°C (75°F). However, March is significantly wetter, with precipitation reaching 127 mm (5.0 in) across 16 days and humidity levels rising to 87%. For more detailed information about the weather in March, you can check Capitolio weather in March.

In comparing the weather of September and April, September tends to be warmer with average temperatures reaching up to 23°C (74°F) and a maximum of 37°C (98°F), while April's temperatures are slightly cooler, averaging 22°C (72°F) with a maximum of 31°C (88°F). September experiences less precipitation, with only 29 mm (1.2 in) over about 3 days, whereas April is notably wetter, receiving 46 mm (1.8 in) across 8 days. Additionally, humidity levels are considerably higher in April at 80%, compared to 49% in September. For a detailed look at April's weather, you can click here: Capitolio weather in April.

September and May present contrasting weather experiences. In September, temperatures range from a minimum of 11°C (52°F) to a sweltering maximum of 37°C (98°F), with an average of 23°C (74°F). The month sees relatively low humidity at 49% and only three days of rainfall, totaling 29 mm (1.2 in). On the other hand, May is cooler, with temperatures varying between a minimum of 6°C (43°F) and a maximum of 29°C (85°F), averaging at 20°C (68°F). It is also more humid at 74% and experiences slightly more precipitation, with 32 mm (1.3 in) over four days. For further insights into the weather conditions in this region during May, check out Capitolio weather in May.

In comparing the weather of September and June, September generally presents warmer temperatures, with daily averages reaching up to 23°C (74°F) and maximums soaring to 37°C (98°F). In contrast, June sees milder conditions, with an average temperature of 19°C (67°F) and a maximum of 29°C (85°F). Rainfall is more prevalent in September, accumulating 29 mm over three days, while June remains relatively dry with just 7 mm of precipitation on one day. Humidity levels also vary significantly, as June's higher humidity at 72% contrasts with September's more comfortable 49%. For more details on weather specifics, you can check Capitolio weather in June.

In comparing September and July weather, September tends to be notably warmer, with average temperatures reaching 23°C (74°F) and a maximum of 37°C (98°F), while July averages a cooler 18°C (65°F) with a maximum of 29°C (85°F). Humidity levels are also higher in July at 67%, compared to September's 49%. Additionally, September experiences more precipitation, accumulating 29 mm (1.2 in) over three days, whereas July is quite dry, recording only 3 mm (0.1 in) without any rainy days. For more detailed insights on July weather, visit Capitolio weather in July.

In September, the weather is generally warmer than in August, with minimum temperatures rising to 11°C (52°F) compared to August's minimum of 7°C (46°F). The average temperature also increases, reaching 23°C (74°F) in September, up from 20°C (68°F) in August, while the maximum temperature can soar to 37°C (98°F) in September, significantly higher than August’s peak of 32°C (89°F). Furthermore, September experiences slightly more precipitation at 29 mm (1.2 in) over 3 days, compared to August's 13 mm (0.5 in) over 2 days. Humidity levels are lower in September at 49%, in contrast to August's higher humidity of 58%. For a closer look at weather conditions during August, visit Capitolio weather in August.

September weather is generally warm, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 37°C (98°F), and an average of 23°C (74°F). The month sees limited precipitation, only about 29 mm (1.2 in) over 3 days, paired with a humidity level of 49%. In contrast, October brings slightly warmer temperatures with a minimum of 15°C (59°F) and an average of 24°C (75°F), while still reaching a maximum of 37°C (98°F). However, October is much wetter, experiencing 134 mm (5.3 in) of rain spread over 15 days, and a decrease in humidity to 36%. For a more detailed look at October's conditions, you can explore the weather in Capitolio weather in October.

In comparing the weather between September and November, we observe notable differences in temperature and precipitation. September typically boasts a wider temperature range, with minimums around 11°C (52°F) and maximums reaching up to 37°C (98°F), averaging 23°C (74°F). In contrast, November presents slightly milder conditions, with minimum temperatures of 14°C (57°F) and a maximum of 33°C (92°F), maintaining a similar average of 23°C (73°F).

However, November experiences significantly higher precipitation, totaling 205 mm (8.1 in) over approximately 18 rainy days, compared to just 29 mm (1.2 in) across 3 days in September. Additionally, humidity levels rise from 49% in September to 65% in November, contributing to a more humid atmosphere. For a detailed look at the weather in Capitolio during November, you can visit Capitolio weather in November.

In September, the weather is generally warm, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 37°C (98°F) and an average of 23°C (74°F). The month sees relatively low precipitation, averaging 29 mm (1.2 in) over just three days, contributing to a moderate humidity level of 49%. In contrast, December experiences milder temperatures, with a minimum of 15°C (59°F) and a maximum of 33°C (91°F), while maintaining the same average of 23°C (74°F). However, December is significantly wetter, featuring 234 mm (9.2 in) of rainfall spread across 22 days and higher humidity at 72%. For a detailed look at December weather in this region, you can visit Capitolio weather in December.

Compare Capitolio's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Capitolio

As September unfolds in Capitolio, it signifies a transition into milder weather compared to the hotter months preceding it. With average temperatures hovering around a comfortable 23°C (74°F), the searing highs of summer give way to more pleasant days. While occasional rainfall, evidenced by three days of precipitation totaling 29 mm (1.2 in), adds a refreshing touch, the humidity remains moderate at 49%, making the air feel inviting. This month serves as a gentle prelude to the coming dry season, showcasing the region's unique climatic rhythm. For a deeper dive into how Capitolio’s weather patterns evolve throughout the year, visit Capitolio Climate.