Last updated: August 21, 2025
September in Vallegrande, Bolivia brings a delightful mix of warm days and crisp nights, with temperatures peaking at a maximum of 29°C (85°F) and dipping to a cool 3°C (38°F). The average temperature settles comfortably around 17°C (62°F), inviting visitors to explore the stunning landscapes. This month experiences about 58 mm (2.3 in) of rainfall spread over 11 days, contributing to the region's lush scenery and vibrant flora, all under a backdrop of relatively low humidity at 36%. Whether you're trekking through the hills or enjoying local culture, September offers a refreshing climate perfect for adventure.
In September, Vallegrande, Bolivia, begins to transition into warmer days as the chill of winter recedes. The minimum temperature slowly rises to 3°C (38°F), while the average reaches a comfortable 17°C (62°F). With a pleasant maximum of 29°C (85°F), September offers a delightful mix of cool mornings and warm afternoons, making it an ideal time for outdoor activities and exploration. As the month progresses, you’ll notice the promise of spring in the air, with temperatures gradually climbing, heralding the impending warmth of summer. The subtle shift in climate not only enhances the region’s natural beauty but also invites visitors to enjoy Vallegrande’s stunning landscapes and vibrant culture.
In September, Vallegrande experiences a modest precipitation of 58 mm (2.3 in), marking a gradual decline from the wetter months preceding it. This month typically sees 11 days of rain, contributing to a noticeable drop in precipitation as the region transitions toward the dry season. Comparing this to the early months of the year, such as January and February, which witness considerably higher rainfall, the shift is evident. As the year progresses, September's rainfall serves as a gentle reminder of the impending dry stretch that follows, culminating in a significant uptick in precipitation again by October. This cyclical pattern highlights Vallegrande's distinct wet and dry seasons, shaping its unique climate landscape.
September in Vallegrande, Bolivia marks a transition to slightly increased humidity levels, averaging 36%, a subtle rise from the drier months of July and August. This uptick reflects the shift from the arid winter months, which saw humidity plunge to as low as 32% in August, to the more balanced conditions that precede the wet season. As the year progresses, humidity will continue to climb, peaking in December at a steamy 83%, highlighting Vallegrande's distinct seasonal rhythm. Overall, while September remains relatively dry compared to the year’s earlier months, it hints at the approaching moisture that characterizes late spring and summer in the region.
September in Vallegrande, Bolivia sees a UV Index of 14, categorized as extreme, with a rapid burn time of just 10 minutes. This month marks a notable return to high UV levels after a brief dip in June and July, where the index was at 9 (very high). As the seasons shift, the UV index trends upward, reflecting the persistent intensity of the sun in the region. Following September, October continues this trend with an even higher UV Index of 16, underscoring the importance of sun protection throughout the year. For more details on UV exposure in Vallegrande, visit Vallegrande UV Index.
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September in Vallegrande, Bolivia, bathes the landscape in a warm embrace of 283 hours of sunshine, making it a delightful prelude to the brighter months ahead. Following the summer peak of 296 hours in March, the daylight hours subtly decline through the winter, reaching a low in June with just 244 hours. However, as the seasons shift, there’s a noticeable upward trend—August reflects a gradual resurgence with 278 hours, setting the stage for September's vibrant sunshine. This steady increase continues into the autumn months, hinting at a fulfilling stretch of daylight leading into October’s inviting 292 hours. As Vallegrande transitions through the seasons, September serves as a golden reminder of nature's rhythm, offering ample opportunities for outdoor adventures under its generous skies.
In Vallegrande, Bolivia, the likelihood of sunny weather shows a significant upward trend during the crisp, transition months of the year. After the lower chances of sunlight in the early months—hovering around 15% to 23% from January to April—there's a noticeable increase with May's 33%, peaking in the midst of winter, notably in July and August with 59% and 56% respectively. As September rolls in, the chance of sun settles at a promising 42%, striking a balance between the winter glow and the upcoming rainy season. This hints at a delightful blend of clarity and mild temperatures, making September a charming choice for those seeking to bask in Vallegrande's picturesque landscape before the clouds return in October.
In Vallegrande, Bolivia, September marks a continuation of a trend toward shorter daylight hours as the year progresses. With 11 hours of daylight, the month aligns with the latter half of the dry season, maintaining a consistent daylight duration that began in June and continues through August. This slight reduction from the sunlit days of January, where daylight lasts up to 13 hours, illustrates the gradual transition towards the equinox, leading to a more balanced distribution of light as October approaches. As the year unfolds, Vallegrande experiences a rhythmic shift—where sunlight ebbs and flows, creating a captivating dance between the bright days of summer and the softer light of autumn.
As September unfolds in Vallegrande, Bolivia, the winds begin to pick up, reaching an average speed of 2.3 m/s (5 mph). This marks a notable increase from previous months, with a steady trend of rising winds from the earlier summer months. While January through August showcased gentle breezes—hovering between 1.4 m/s and 2.0 m/s—the transition into September brings a refreshing gust, hinting at the approaching change of seasons. Following this peak, a slight dip to 2.1 m/s in October suggests that this invigorating wind is part of a broader pattern, where warm summer airs give way to the cooler influences of autumn. The overall progression highlights a dynamic climate, perfectly illustrating the interplay between seasonal shifts and local geography in this charming Bolivian town.
Weather in Vallegrande varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Vallegrande, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit notable differences in weather patterns. In September, temperatures range from a cool minimum of 3°C (38°F) to a warm maximum of 29°C (85°F), with an average of 17°C (62°F). The month sees 58 mm (2.3 in) of precipitation over about 11 days and a relatively low humidity level of 36%. In contrast, January experiences milder temperatures, with a minimum of 11°C (52°F) and a maximum reaching 30°C (87°F), averaging 19°C (67°F). However, it also brings significantly more rain, totaling 210 mm (8.3 in) across 17 days, and much higher humidity at 83%. For more detailed information, check out Vallegrande weather in January.
September and February offer contrasting weather experiences. In September, temperatures range from a cool 3°C (38°F) at their lowest to a warm 29°C (85°F) at their peak, with an average of 17°C (62°F). The month sees relatively low precipitation, totaling 58 mm (2.3 in) over 11 days, and low humidity at 36%. In contrast, February presents milder temperatures, with lows around 11°C (52°F) and highs peaking at 29°C (84°F), averaging 19°C (66°F). This month is notably wetter, accumulating 216 mm (8.5 in) of precipitation across 20 days, accompanied by higher humidity levels at 77%. For more detailed insights into February weather, check out Vallegrande weather in February.
In September, the weather is generally mild with average temperatures ranging from a minimum of 3°C (38°F) to a pleasant maximum of 29°C (85°F). This month experiences relatively low humidity at 36% and moderate precipitation of 58 mm (2.3 in) over 11 rainy days. In contrast, March tends to be warmer, with temperatures starting at a minimum of 9°C (49°F) and averaging 18°C (65°F), reaching similar highs of 29°C (84°F). However, March is substantially wetter, accumulating 186 mm (7.3 in) of rain across 21 days and boasting much higher humidity at 78%. For a closer look at the specifics of March weather, check out Vallegrande weather in March.
When comparing the weather in September and April, notable differences emerge. September features a broader temperature range, with a minimum of 3°C (38°F) and a maximum of 29°C (85°F), while April holds slightly milder temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 27°C (81°F). Precipitation also varies significantly; September sees 58 mm (2.3 in) of rain over 11 days, whereas April experiences nearly double that amount, with 102 mm (4.0 in) spread across 14 days. Importantly, April is characterized by much higher humidity at 80%, compared to September's 36%. For more detailed insights, check Vallegrande weather in April.
In comparing the weather between September and May, September tends to be warmer overall, with average temperatures reaching up to 17°C (62°F) and maximums hitting 29°C (85°F), compared to May's average of 15°C (59°F) and maximum of 26°C (80°F). However, May experiences greater humidity at 75%, making it feel more humid compared to September's lower 36%. Additionally, precipitation in May is slightly higher, totaling 70 mm (2.8 in) over 12 days, while September sees 58 mm (2.3 in) over 11 days. For more details on May weather, check out Vallegrande weather in May.
In comparing the weather between September and June, September tends to be warmer with an average temperature of 17°C (62°F) and maximums reaching up to 29°C (85°F). In contrast, June sees lower temperatures, averaging at 14°C (57°F) with maximums around 26°C (79°F). Both months experience similar levels of precipitation, with September receiving 58 mm (2.3 in) over 11 days and June slightly less at 53 mm (2.1 in) across 10 days. Humidity also differs significantly; September has a lower humidity level of 36% compared to June's 55%. For more detailed insights into June weather in Vallegrande, you can check this link: Vallegrande weather in June.
In comparing the weather between September and July, September tends to be significantly warmer, with average temperatures reaching 17°C (62°F) compared to July's lower average of 13°C (56°F). Additionally, September experiences higher maximum temperatures, peaking at 29°C (85°F), while July's maximum is capped at 25°C (78°F). However, September also sees increased precipitation, totaling 58 mm (2.3 in) over 11 days, compared to July's 44 mm (1.7 in) over just 8 days. Humidity remains fairly similar, with September at 36% and July slightly higher at 39%. For more detailed weather information related to July, visit Vallegrande weather in July.
September generally experiences warmer temperatures compared to August, with average highs reaching 29°C (85°F) and lows of 3°C (38°F), while August has an average high of 28°C (83°F) and a low of 0°C (31°F). Although September has a slightly higher average temperature of 17°C (62°F) compared to August's 14°C (57°F), the difference in precipitation is minimal, with September seeing 58 mm (2.3 in) over 11 days compared to August's 63 mm (2.5 in) over 9 days. Additionally, September's humidity at 36% is slightly higher than August's 32%, contributing to a more comfortable atmosphere overall. For more detailed insights, you can explore Vallegrande weather in August.
September and October present noticeable shifts in weather patterns. September experiences a wider temperature range, with minimums dipping to 3°C (38°F) and maximums peaking at 29°C (85°F), while the average temperature rests around 17°C (62°F). In contrast, October brings slightly warmer minima at 8°C (47°F) and a comparable maximum of 30°C (86°F), resulting in an average temperature of 18°C (65°F). Additionally, October sees a significant increase in precipitation, totaling 126 mm (5.0 in) across 15 days, compared to September's 58 mm (2.3 in) over 11 days. Humidity levels also rise slightly from 36% in September to 40% in October. For a detailed look at the weather in Vallegrande during this time, check out Vallegrande weather in October.
In September, the weather features a broader temperature range with minimums around 3°C (38°F) and maximums reaching 29°C (85°F), leading to a comfortable average of 17°C (62°F). However, with only 58 mm (2.3 in) of precipitation spread over 11 days, September tends to be drier and less humid, with only 36% humidity.
In contrast, November brings a milder climate with a higher minimum temperature of 10°C (50°F) and an average temperature of 19°C (66°F), while maximums are slightly lower at around 29°C (84°F). The month is significantly wetter, with 155 mm (6.1 in) of rainfall over 18 days, leading to increased humidity at 70%. This shift in precipitation and humidity levels makes November feel quite different from the early autumn month of September. For more details, you can check Vallegrande weather in November.
In September, the weather is mild with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 29°C (85°F), averaging around 17°C (62°F). Precipitation is moderate, totaling 58 mm (2.3 in) over approximately 11 days, with a relatively low humidity level of 36%. In contrast, December experiences warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 30°C (86°F), averaging 19°C (66°F). However, December also sees a significant increase in precipitation, totaling 277 mm (10.9 in) over about 24 days, accompanied by much higher humidity at 83%. For a detailed overview of December weather patterns in Vallegrande, you can check Vallegrande weather in December.
September in Vallegrande brings a delightful transition in weather, featuring mild temperatures that create a comfortable atmosphere for outdoor activities. With a pleasant average temperature lingering around 17°C (62°F), days can reach a maximum of 29°C (85°F), while cooler nights drop to around 3°C (38°F). This month experiences a notable amount of precipitation, with 11 days of rain contributing to a total of 58 mm (2.3 in). The humidity remains relatively low at 36%, making for a refreshing climate. Overall, September sets itself apart from other months by balancing warmth with occasional rainfall, perfect for enjoying the lush landscapes. For a deeper insight into the weather patterns, check out Vallegrande Climate.