Last updated: August 21, 2025
September in Belo Horizonte, Brazil presents a delightful transition into spring, with temperatures ranging from a refreshing 10°C (50°F) at night to a warm 35°C (95°F) during the day. The average temperature settles comfortably at 21°C (71°F), making it an ideal time for outdoor activities. Although the humidity hovers around 63%, creating a pleasant atmosphere, the city experiences a modest precipitation of 25 mm (1.0 in) spread across about 3 days. This mix of warmth and occasional rain contributes to the lush scenery, embodying the vibrant essence of September in Belo Horizonte.
In September, Belo Horizonte experiences a delightful transition, with temperatures ranging from a mild 10°C (50°F) at night to a warm 35°C (95°F) during the day. This month showcases a gradual warming trend, with the average temperature settling at a comfortable 21°C (71°F). As spring approaches in Brazil, the weather becomes increasingly pleasant, making it an ideal time for outdoor activities. Notably, September stands out for its notable highs, marking the beginning of the warmer months that follow. With clear skies and rising temperatures, it's the perfect opportunity to explore the city's vibrant culture and natural beauty.
September in Belo Horizonte marks a gradual shift toward increased precipitation, with 25 mm (1.0 in) of rainfall recorded over three days. This month serves as a gentle transition from the dry conditions of winter, characterized by minimal rain in July and August, into the wetter months that follow. The slight uptick in precipitation hints at the approaching spring and the eventual return of more consistent rain, setting the stage for the significant downpours that typically occur in October and November. As Belo Horizonte prepares for the seasonal change, September's modest rainfall represents both a reprieve from the arid stretches of winter and an anticipation of the lush growth that the upcoming months will surely bring.
In September, Belo Horizonte experiences a notable shift in humidity, dropping to 63%, which marks a significant decrease from the summer months. This decline is part of a broader trend, as the city transitions from the sweltering humidity of winter to the drier conditions of spring. The contrast is particularly striking when compared to the peak humidity levels of the earlier months—January through March, which consistently hover above 83%. As the year progresses, October sees a further drop to 48%, emphasizing a pattern of decreasing humidity that continues into the final quarter. This refreshing change in September not only brings a welcome relief after the wetter months but also signals the onset of a more temperate climate ahead.
In September, Belo Horizonte experiences a UV Index of 12, categorized as extreme, with a burn time of just 10 minutes. This marks a continuation of the high UV levels seen throughout the year, with the index steadily declining from January's peak of 17 but remaining significantly elevated. As the seasons shift, the UV exposure category fluctuates, with March through August showcasing extreme and very high levels. With September's index similar to April's, residents and visitors alike should remain vigilant about sun protection. For more detailed insights into UV trends throughout the year, explore Belo Horizonte UV Index.
UV Risk Categories
As September unfolds in Belo Horizonte, the city basks in the warmth of 318 hours of sunlight, marking it as a peak moment for sunshine this year. Following a robust summer that showcased impressive light, particularly in March with 316 hours and the prior months of July and August, September continues this trend, providing a vibrant backdrop for outdoor activities. This notable burst of brightness also serves as a transition towards the milder tones of autumn, with October still promising a generous 302 hours. However, as the year progresses towards the end, the sunlight gradually tapers off, echoing the annual rhythm where November dips to 266 hours. With its sun-drenched days, September symbolizes a golden midpoint in Belo Horizonte's delightful climatic tapestry.
In Belo Horizonte, Brazil, September boasts a 67% chance of sunny weather, making it one of the more favorable months for sunshine. This pleasant likelihood follows a striking trend, as the city enjoys a significant increase in sunny days during the winter months, peaking in July with an impressive 85%. As the seasons transition into spring, the chances of sunshine remain high, slightly dipping from the summer-like intensity of previous months. The clear skies in September hint at a warm and inviting atmosphere, perfect for outdoor activities, setting the tone for the upcoming months as the likelihood of sunshine dwindles into the summer's end.
As September rolls into Belo Horizonte, the city enjoys a consistent 11 hours of daylight, mirroring the latter months of winter. Following the longer days of January and February, the daylight gradually shortens through the early autumn months, maintaining an equilibrium until October when sunlight begins to stretch again. This pattern showcases a gentle transition in the length of days, reflecting the shifting seasons from the bright summer months into the milder feel of spring. With each passing week in September, residents can relish the warm embrace of the sun, slightly dimming as daylight prepares to gradually reclaim its dominance in the months to follow.
As September arrives in Belo Horizonte, it ushers in a noticeable uptick in wind speed, reaching an average of 2.5 m/s (6 mph). This increase marks a slight yet significant shift from the calmer breezes of earlier months, hinting at the onset of more dynamic weather patterns as the seasons transition. Following a steady rise from the gentle winds of July and August, September's gusty embrace stands out as one of the year's highlights, paving the way for the even brisker October winds that follow. As the city experiences these refreshing breezes, both residents and visitors can enjoy the invigorating touch of nature, which provides a perfect backdrop to the vibrant life in Belo Horizonte.
Weather in Belo Horizonte varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Belo Horizonte, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns. In September, temperatures range from a pleasant minimum of 10°C (50°F) to a warm maximum of 35°C (95°F), with an average of 21°C (71°F). The month sees moderate precipitation of 25 mm (1.0 in) over about 3 days, accompanied by a humidity level of 63%. Conversely, January experiences milder temperatures, with a minimum of 16°C (61°F) and a maximum of 32°C (89°F), averaging 23°C (73°F). This month is significantly wetter, with 124 mm (4.9 in) of rain over 11 days and higher humidity at 83%. For more detailed insights on January weather, check out Belo Horizonte weather in January.
In September, temperatures in Belo Horizonte range from a mild 10°C (50°F) at night to a warm 35°C (95°F) during the day, with an average of 21°C (71°F). The month sees relatively low precipitation, amounting to just 25 mm (1.0 inch) over about 3 days, coupled with a moderate humidity level of 63%. In contrast, February offers a warmer experience, with temperatures starting at 16°C (61°F) and reaching a maximum of 33°C (91°F), giving an average temperature of 22°C (72°F). However, February is significantly wetter, experiencing 196 mm (7.7 inches) of rainfall across 17 days and elevated humidity levels at 85%. For more detailed insights, visit Belo Horizonte weather in February.
September and March exhibit distinct weather patterns, reflecting the transitions of late winter to early spring and late summer to early autumn, respectively. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 35°C (95°F), with an average of 21°C (71°F). The month sees relatively low precipitation, totaling 25 mm (1.0 in) over just 3 days, coupled with a moderate humidity of 63%.
Conversely, March experiences slightly warmer temperatures with a minimum of 13°C (56°F) and a maximum of 31°C (88°F), averaging around 22°C (72°F). However, it is characterized by significantly higher rainfall, amounting to 119 mm (4.7 in) across 14 days, and elevated humidity levels reaching 87%. This transition highlights the wetter and more humid conditions of March, contrasting with the drier and warmer weather of September. For more details, you can check Belo Horizonte weather in March.
September and April present contrasting weather patterns, despite having similar average temperatures. September boasts a wider temperature range, with minimums of 10°C (50°F) and maximums reaching up to 35°C (95°F), while April's temperatures are milder, ranging from a minimum of 11°C (52°F) to a maximum of 30°C (86°F). Additionally, September experiences lower precipitation at 25 mm (1.0 in) over just 3 days, compared to April's 46 mm (1.8 in) across 10 days, making April a noticeably wetter month. Furthermore, the humidity in April is higher at 86%, compared to September's 63%, contributing to a more humid atmosphere during the former. For more details, you can visit Belo Horizonte weather in April.
In September, Belo Horizonte experiences warmer temperatures, with a minimum of 10°C and an average high of 35°C, while May sees cooler conditions, starting from a minimum of 5°C and peaking at 28°C. September typically enjoys less precipitation, with only 25 mm over three days, compared to May's 38 mm over four days. Moreover, September's humidity level is slightly lower at 63%, whereas May's humidity is higher at 82%. For more detailed insights on May's weather patterns, you can check Belo Horizonte weather in May.
September generally offers warmer weather compared to June, with average temperatures reaching 21°C (71°F) and highs of 35°C (95°F), whereas June's average temperature is cooler at 18°C (65°F) with a maximum of 28°C (82°F). Additionally, September experiences slightly less precipitation, totaling 25 mm (1.0 in) over about three days, while June has minimal rainfall, only 4 mm (0.2 in) and no rainy days. Humidity levels are lower in September at 63%, compared to a higher humidity of 82% in June, making the latter feel more humid and uncomfortable. For more specific insights on June weather conditions, check out Belo Horizonte weather in June.
In comparison to July, September offers a warmer climate with a greater temperature range, featuring minimums of 10°C (50°F) and maximums reaching up to 35°C (95°F), while July’s temperatures hover between 6°C (43°F) and 28°C (83°F). Additionally, September experiences slightly higher humidity levels at 63% compared to July's 77%, despite having a lower average precipitation of 25 mm (1.0 in) over three days, in contrast to July's remarkably dry spell with just 2 mm (0.1 in) and no significant rainfall. For more detailed insights, you can explore Belo Horizonte weather in July.
When comparing the weather between September and August, September typically enjoys warmer temperatures, with an average of 21°C (71°F) and a maximum reaching up to 35°C (95°F). In contrast, August has a cooler average temperature of 18°C (65°F) and a maximum of 30°C (86°F). Additionally, September experiences slightly higher humidity levels at 63%, while August sees a peak humidity of 72%. Precipitation is more minimal in September, with only 25 mm (1.0 in) over three days, compared to August's 12 mm (0.5 in) spread over just two days. For a more detailed comparison, you can check out Belo Horizonte weather in August.
September weather features a range of temperatures with a minimum of 10°C (50°F), an average of 21°C (71°F), and a maximum of 35°C (95°F). It experiences relatively low precipitation of 25 mm (1.0 in) over just 3 days, while humidity levels hover around 63%. In contrast, October brings slightly warmer conditions with a minimum temperature of 14°C (57°F) and an average of 22°C (72°F), peaking at 36°C (97°F). However, October is marked by significantly higher rainfall, reaching 121 mm (4.8 in) over 16 days, and a decrease in humidity to 48%. For more detailed information, check out Belo Horizonte weather in October.
September and November in Belo Horizonte offer distinct weather experiences. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 35°C (95°F), with an average of 21°C (71°F) and relatively low precipitation of 25 mm (1.0 in) over just 3 days. The humidity level is higher than in November, sitting at 63%. In contrast, November sees slightly warmer temperatures, with a minimum of 13°C (55°F), an average of 22°C (71°F), and a maximum of 33°C (91°F). However, it experiences significantly higher rainfall, totaling 176 mm (6.9 in) over 18 days, leading to a damp atmosphere with a humidity level of 61%. For more details, you can check the Belo Horizonte weather in November.
In September, the weather features a pleasant range of temperatures, with a minimum of 10°C (50°F) and an average of 21°C (71°F), reaching up to a maximum of 35°C (95°F). The month sees relatively low precipitation, with only 25 mm (1.0 in) falling over just 3 days, and an average humidity of 63%. In contrast, December presents a warmer climate, with a minimum temperature of 14°C (57°F) and an average of 22°C (72°F), peaking at 31°C (88°F). However, it experiences significantly higher rainfall, totaling 199 mm (7.8 in) over 19 days, and a marginally higher humidity level of 68%. For more detailed information on how December weather compares to other months, visit Belo Horizonte weather in December.
As September unfolds in Belo Horizonte, the weather presents a refreshing transition from the harsh winter chill to a more moderate and inviting climate. The days become increasingly warm, with plenty of sunshine, yet the evenings still hold onto a hint of coolness that contrasts beautifully with the daytime heat. With relatively low precipitation and humidity levels, September offers a delightful mix of dry spells and manageable temperatures, making it an ideal time for outdoor activities. Experience the unique charm of Belo Horizonte's climate this month by exploring more about its weather patterns in this link: Belo Horizonte Climate.