Last updated: August 21, 2025
Experience the vibrant September weather in Pirenopolis, Brazil, where warm temperatures delight visitors. With maximum highs reaching up to 37°C (99°F) and an average of 26°C (80°F), the climate is perfect for outdoor adventures. Nighttime cools down to a refreshing 15°C (59°F), offering a pleasant respite. Rainfall is minimal, with only about 9 mm (0.4 in) recorded over just a single day, while humidity hovers around 34%, ensuring a comfortable atmosphere to explore this charming city. Whether you're wandering through its historic streets or soaking in the picturesque landscapes, September in Pirenopolis promises a memorable experience.
As September arrives in Pirenópolis, Brazil, temperatures begin to warm up noticeably after the cooler winter months. With minimums rising to 15°C (59°F) and averages reaching a comfortable 26°C (80°F), the town basks in increasingly pleasant weather. The peak temperatures can soar to a steamy 37°C (99°F), marking one of the year's transitions into the hotter season. This month not only ushers in a significant jump in temperatures but also serves as a precursor to the hotter months ahead, highlighting the region's vibrant climate shift. With these inviting conditions, September emerges as an appealing time for outdoor adventures, making it a perfect opportunity to explore the rich landscapes and charm of Pirenópolis.
In September, Pirenópolis experiences a slight uptick in precipitation, receiving about 9 mm (0.4 in) of rain over just one day. This marks a transition from the arid months of July and August, which saw virtually no rainfall, to the wetter seasons ahead. Historically, September serves as a precursor to the more substantial rains of October and November, where precipitation can soar to over 100 mm. The brief drizzle in September not only recharges the local ecosystem but also signals the easing of the dry season, preparing residents and nature alike for the lush, vibrant months to follow.
In September, Pirenópolis experiences a notable drop in humidity, reaching a low of 34%. This decline continues the trend of decreasing humidity from the peak levels seen in the earlier months of the year, especially the highs of 86% in January and 89% in February. As the region transitions into spring, humidity levels continue to fall, ultimately hitting their annual low in October at 26%. This significant reduction reflects the pattern of shifting weather characteristics in Pirenópolis, paving the way for drier conditions that persist through the latter part of the year.
In September, Pirenópolis experiences a UV Index of 13, categorizing the exposure as extreme and maintaining a burn time of just 10 minutes. This trend follows the pattern set earlier in the year, where the UV Index remained remarkably high from January through August, fluctuating between 12 and 16. The consistency in the extreme levels of UV radiation signifies the importance of sun protection, especially as the region moves into the hotter months. As October approaches, the UV Index is expected to reach 15, reinforcing the need for vigilance against overexposure. For detailed UV insights and forecasts, visit Pirenopolis UV Index.
UV Risk Categories
As September unfolds in Pirenopolis, Brazil, the days bask in an impressive 328 hours of sunshine, reflecting a delightful transition into spring. This sunny month follows closely behind the peak brightness of July and August, both boasting an equally radiant 333 hours. Interestingly, the sunshine hours witness a gradual increase from the moderate offerings of earlier months such as January and February—both under 255 hours—building to the peak of May with 327 hours. This trend highlights Pirenopolis as a blossoming hub of light and warmth, making September a perfect time to explore its charming streets and vibrant nature.
September in Pirenopolis, Brazil, marks a transition towards more sunny days, as the likelihood of sunshine peaks to 70%. This trend follows the impressive sunny streak of July and August, where the chances are 93% and 67%, respectively. As the region moves from the wet, cooler months of mid-year, September signals a delightful shift, making it an ideal time for outdoor activities and exploration. While the sun takes a brief retreat in October with just 30% chances, September undeniably sets the stage for a glorious prelude to the vibrant summer months ahead, inviting both locals and visitors to bask in the pleasant warmth of the season.
As September unfolds in Pirenópolis, Brazil, residents and visitors alike can enjoy a return to 12 hours of daylight, marking a shift from the shorter days of winter. This month reflects a continuation of the consistent daylight pattern seen since the beginning of the year, with January through March also boasting 12 hours. However, as the calendar transitions into spring, the days gradually lengthen, heralding a season of longer hours that culminates in December's generous 13 hours. With daylight duration stabilizing in both March and September, it’s clear that Pirenópolis enjoys a rhythm of light that deeply influences its vibrant culture and outdoor activities.
As September rolls in, Pirenopolis experiences a gentle breeze with an average wind speed of 2.3 m/s (5 mph), slightly dipping from the gustier heights of August. This variation signifies a subtle shift in the weather patterns toward the end of the dry season. Observing the trends throughout the year, wind speeds have gradually increased from a calm 1.5 m/s (3 mph) in January, peaking with the robust flow of 2.6 m/s (6 mph) in August, before settling back in September. This oscillation creates a refreshing ambiance ideal for outdoor activities and exploration, making the serene landscapes of Pirenopolis even more inviting as the winds whisper tales of the changing seasons.
Weather in Pirenopolis varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Pirenopolis, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is warm and dry, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 37°C (99°F) and an average of 26°C (80°F). Humidity levels are relatively low at 34%, making it a comfortable month for outdoor activities, with only 9 mm (0.4 in) of precipitation over just one day. In contrast, January is characterized by much higher humidity at 86% and significantly more rainfall, with 174 mm (6.8 in) spread over 16 days. Temperatures in January are slightly cooler on average, with lows of 17°C (63°F) and highs reaching 34°C (93°F). For a detailed look at the January weather, you can visit this link: Pirenopolis weather in January.
September and February present contrasting weather patterns, reflecting the transition from the dry season to a much wetter climate. In September, temperatures range from a comfortable minimum of 15°C (59°F) to a scorching maximum of 37°C (99°F), with an average of 26°C (80°F) and only 9 mm (0.4 in) of precipitation over just one day, resulting in a relatively low humidity of 34%. In stark contrast, February sees milder temperatures, with a minimum of 18°C (64°F) and a maximum of 34°C (93°F), accompanied by an average of 23°C (74°F). However, the month also brings significantly higher rainfall, totaling 257 mm (10.1 in) over 24 days, leading to a much more humid environment at 89%. For a deeper look at February's climate specifics, you can check Pirenopolis weather in February.
In September, the weather tends to be warm and dry, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 37°C (99°F) and average temperatures around 26°C (80°F). The month experiences only about 9 mm (0.4 in) of precipitation over just 1 day, contributing to a relatively low humidity of 34%. In contrast, March brings a notable change, characterized by higher humidity levels at 90% and significantly increased rainfall. With temperatures ranging from a minimum of 17°C (62°F) to a maximum of 34°C (93°F), March averages 24°C (75°F) and sees approximately 174 mm (6.9 in) of precipitation spread over 22 days. For more detailed information, you can check Pirenopolis weather in March.
When comparing the weather in September and April, notable differences emerge. September typically experiences higher temperatures, with a minimum of 15°C (59°F) and an average of 26°C (80°F), peaking at a scorching 37°C (99°F). In contrast, April offers a milder climate, with temperatures ranging from a minimum of 12°C (53°F) to an average of 23°C (75°F) and a maximum of 32°C (90°F). While September enjoys relatively low precipitation of just 9 mm (0.4 in) over one day, April is significantly wetter, receiving 100 mm (3.9 in) of rain across approximately 14 days. Additionally, September boasts lower humidity at 34%, compared to April's much higher 82%. For more details on April weather, visit Pirenopolis weather in April.
September and May present contrasting weather experiences. In September, temperatures can soar to a maximum of 37°C (99°F), with an average of 26°C (80°F) and relatively low humidity at 34%. Precipitation is minimal, with only about 9 mm (0.4 in) falling over just one day. In contrast, May offers milder temperatures, where the maximum reaches 31°C (89°F) and the average is around 22°C (73°F). It is also wetter, with 14 mm (0.6 in) of rain occurring over three days and a notably higher humidity level of 65%. For more detailed information, you can check out Pirenopolis weather in May.
In September, temperatures tend to be warmer, with a minimum of 15°C (59°F) and an average high reaching 37°C (99°F), while June sees cooler temperatures, starting at a minimum of 12°C (54°F) and peaking at 31°C (88°F). Additionally, September has lower humidity at 34%, compared to June's higher humidity level of 59%. Precipitation is also a factor; September experiences a slight increase with 9 mm (0.4 in) over just one day, whereas June enjoys dry conditions with only 1 mm (0.0 in) and no recorded rain days. For a closer look at June's climate, visit Pirenopolis weather in June.
In comparing the weather between September and July, September tends to be significantly warmer with average temperatures reaching 26°C (80°F) and maximums climbing up to 37°C (99°F). In contrast, July has a cooler climate, with average temperatures around 21°C (70°F) and maximums peaking at 31°C (88°F). Additionally, September experiences slightly more precipitation at 9 mm (0.4 in) over just one day, whereas July is notably dry, reporting no rainfall throughout the month. Interestingly, July has higher humidity levels at 53%, compared to September's lower humidity of 34%. For more detailed information, visit Pirenopolis weather in July.
In comparing the weather between August and September, September emerges as noticeably warmer, with average temperatures rising to 26°C (80°F) compared to August's average of 24°C (75°F). Additionally, September experiences higher maximum temperatures, reaching up to 37°C (99°F), while August peaks at 34°C (94°F). Humidity levels are also lower in September at 34%, contrasting with August's higher 44%. However, September does bring a slight increase in precipitation with 9 mm (0.4 in) over one day, while August recorded none. For a closer look at August weather specifics, check out Pirenopolis weather in August.
In September, the weather is generally warm with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 37°C (99°F), and an average temperature of 26°C (80°F). This month experiences very little precipitation, with only 9 mm (0.4 in) falling over just one day, resulting in a humidity level of 34%. In contrast, October brings slightly warmer temperatures, with a minimum of 17°C (62°F) and a maximum of 38°C (101°F), while maintaining the same average of 26°C (79°F). However, October is substantially wetter, receiving 100 mm (3.9 in) of rainfall over 14 days, and a drop in humidity to 26%. For more details on October weather, you can check Pirenopolis weather in October.
In September, the weather tends to be warmer, with average temperatures reaching up to 26°C (80°F) and maximums soaring to 37°C (99°F). The month is relatively dry, with only 9 mm (0.4 in) of precipitation over just one day and a humidity level of 34%. In contrast, November experiences more moderate temperatures, with an average of 24°C (75°F) and maximums up to 35°C (95°F). However, it is significantly wetter, receiving 203 mm (8.0 in) of rain over 22 days, resulting in a higher humidity of 50%. For a closer look at the weather specifics for November, you can check Pirenopolis weather in November.
September and December present quite contrasting weather conditions. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 37°C (99°F), with an average of 26°C (80°F) and relatively low humidity at 34%. The month experiences minimal rainfall, with just 9 mm (0.4 in) over 1 day. In contrast, December brings higher temperatures, with a minimum of 17°C (63°F) and a maximum of 33°C (92°F), but a cooler average of 24°C (75°F). It is significantly wetter, with a substantial 291 mm (11.4 in) of precipitation over 23 days and much higher humidity at 70%. These differences make September drier and warmer while December is characterized by more rainfall and humidity. For more detailed information, you can visit Pirenopolis weather in December.
As September unfolds in Pirenópolis, visitors can expect a delightful transition in weather that sets it apart from other months. With average temperatures hovering around a comfortable 26°C (80°F) and only a hint of rainfall, this month offers a perfect balance of warmth and dryness, making outdoor activities particularly enjoyable. The low humidity of 34% adds to the pleasant experience, allowing for a refreshing atmosphere ideal for exploration. In contrast to the more intense rainfalls typical of other seasons, September holds just a single day of precipitation, making it a charming time to visit. For more insights into what the weather has in store throughout the year, check out Pirenopolis Climate.