Last updated: August 21, 2025
September in Barisan, Indonesia welcomes a tropical climate filled with warm temperatures and occasional rainfall. With maximum temperatures reaching 32°C (90°F) and a comfortable average of 24°C (75°F), the days are inviting yet humid, hovering around 77%. The region experiences nine days of rainfall throughout the month, accumulating to 82 mm (3.2 in), making it a time for lush greenery to flourish. This blend of warmth and moisture creates an ideal ambiance for nature enthusiasts and travelers alike, embracing the vibrant essence of Indonesian weather in September.
September in Barisan, Indonesia ushers in a gentle transition in temperatures, making it a delightful time to experience the region. With minimums dipping to 17°C (62°F), the nights grow cooler, while average daytime temperatures hover around 24°C (75°F), presenting a comfortable climate for outdoor activities. The maximums still reach up to 32°C (90°F), allowing for warm, sun-kissed afternoons. This month reflects the gradual cooling trend that began in July, yet maintains the warmth characteristic of Barisan, ensuring visitors can enjoy both refreshing breezes and sunny days. As the year progresses, September showcases a perfect balance, enticing adventurers to explore its scenic beauty.
In September, Barisan, Indonesia experiences a noticeable uptick in precipitation, with 82 mm (3.2 in) of rainfall spread over nine days. This increase marks a departure from the notably dry months of July and August, which saw just 20 mm (0.8 in) and 23 mm (0.9 in) respectively. As the region transitions into the wetter season, September's rainfall is a hint of the dramatic surge that follows in October and November, where averages leap to 96 mm (3.8 in) and 357 mm (14.0 in), respectively. This trend underscores a clear pattern: after the dry summer months, Barisan quickly shifts to a more humid climate, paving the way for the intense rainy season that characterizes the latter part of the year.
September brings a slight dip in humidity levels in Barisan, Indonesia, with an average of 77%. This marks the continuation of a subtle decline that began in July and August, where humidity lingered at 79%. The trend reflects a gradual shift toward the dryer months as the year progresses, particularly after a summer of relatively higher humidity, peaking at 85% in February. As the dry season approaches, September's relatively lower humidity not only makes for a more comfortable climate but also signals a change in the environment, paving the way for the transition into October and beyond, which maintains the same humidity level. Overall, this month offers a refreshing breath amid the tropical ambiance typical of Barisan throughout the year.
In September, Barisan, Indonesia experiences a striking UV Index of 15, categorizing it as extreme and once again emphasizing the urgent need for sun protection with a burn time of just 10 minutes. This month mirrors the intensity seen at the beginning of the year, where January through March maintained the same high levels, showcasing a consistent trend of extreme UV radiation throughout many months. Even as the year progresses, Barisan's UV Index remains significantly elevated, peaking in September before continuing with the same intensity into October and November. It's crucial for residents and visitors alike to stay vigilant in their sun safety practices during these months. For further details on the UV index variations, visit Barisan UV Index.
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As September unfolds in Barisan, Indonesia, the region basks in an impressive 302 hours of sunshine, a slight dip from the golden glow of August, which recorded an exceptional 314 hours. This month continues a remarkable trend where summer months consistently outperform their winter counterparts, showcasing a peak in daylight from May through July. While the sunny days of September remain abundant, they reflect a gentle transition toward the more moderate days of October, which brings 306 hours of light. This gradual ebb of sunlight hints at the arrival of the rainy season, yet its brilliance is a reminder of the vibrant climate that defines Barisan throughout the year.
In Barisan, Indonesia, September offers a moderate opportunity for sunny weather, with a 25% chance of sunshine. This marks a noticeable decline from the preceding months of July and August, where the likelihood of clear skies hovers around 39% to 41%. As the region transitions into the latter part of the year, there is a significant drop-off, with chances plummeting to 14% by October. This suggests that while September may still bring occasional sunny days, it is a time when the weather begins to shift, hinting at the approaching rainy season that characterizes the months to follow. Thus, those looking to bask in the sun should plan accordingly, as the bright days are becoming fewer.
In September, Barisan, Indonesia, enjoys a harmonious 12 hours of daylight, marking a return to the more balanced daylight experienced in the earlier months of the year. This shift from the extended hours of 11-hour days in the mid-year months is a delightful reminder of the equatorial region's consistent light patterns. Following the transitional months of April through August, where daylight dips slightly, September signals a return to longer days as the region's weather begins to shift. As the year progresses towards October and beyond, residents can bask in the same generous daylight hours, providing ample time to engage in outdoor activities and embrace Indonesia's natural beauty.
As September rolls in, the winds in Barisan, Indonesia, gently embrace the landscape, boasting an average speed of 3.0 m/s (7 mph). This marked a slight decrease from August's peak of 3.2 m/s, yet it maintains a robust breeze compared to the earlier months of the year. The wind speeds have shown an overall upward trend during the dry season, starting from a calm 1.6 m/s in March and rising steadily through to July's invigorating 2.9 m/s. September's mild winds continue to offer a pleasant atmosphere, reflecting the region's transition as it prepares to welcome the cooler months ahead. Overall, these breezy September days are a delightful reminder of Barisan's dynamic climate.
Weather in Barisan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Barisan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinctly different weather patterns. In September, temperatures range from a minimum of 17°C (62°F) to a maximum of 32°C (90°F), with an average of 24°C (75°F). The month experiences moderate rainfall, totaling 82 mm (3.2 in) over about 9 days and a humidity level of 77%. In contrast, January is notably warmer with a minimum temperature of 22°C (72°F) and an average of 25°C (78°F), while still reaching a maximum of 32°C (90°F). However, January sees significantly more precipitation, with 328 mm (12.9 in) spread across 24 days, resulting in slightly higher humidity at 81%. For a detailed look at January's weather in this region, visit Barisan weather in January.
September's weather features a comfortable temperature range, with a minimum of 17°C (62°F) and an average of 24°C (75°F). While it does reach a maximum of 32°C (90°F), the month enjoys relatively lower humidity at 77% and experiences approximately 82 mm (3.2 in) of rainfall over about 9 days. In contrast, February presents a warmer and wetter climate, with minimum temperatures increasing to 21°C (71°F) and an average of 25°C (78°F). The maximum temperature peaks at 33°C (91°F), but the month is significantly more humid at 85% and sees much heavier rainfall totaling 336 mm (13.2 in) over 27 days. This stark difference in precipitation and humidity makes February a much wetter month compared to September. For more details about February weather, check out Barisan weather in February.
When comparing the weather of September and March, there are notable differences in temperature and precipitation. September typically features a milder climate with minimum temperatures around 17°C (62°F) and an average of 24°C (75°F), while March starts at a warmer baseline of 21°C (71°F) with an average of 26°C (78°F). Both months can reach a maximum of 32°C (90°F), but March is significantly wetter, receiving 344 mm (13.5 in) of rain over 29 days compared to September's 82 mm (3.2 in) over just 9 days. Additionally, humidity levels are higher in March at 83%, compared to 77% in September. For a deeper insight into the March conditions, check out Barisan weather in March.
September and April exhibit similar temperature ranges, with both months reaching a maximum of 32°C (90°F). However, September tends to be slightly cooler on average, with temperatures ranging from a minimum of 17°C (62°F) to an average of 24°C (75°F), while April has higher minimum and average temperatures, starting at 19°C (67°F) and averaging 26°C (79°F). In terms of precipitation, April is significantly wetter, receiving 168 mm (6.6 in) of rain over 22 days compared to September's 82 mm (3.2 in) over just 9 days. Humidity levels in April are also marginally higher at 80%, compared to September's 77%. For more information on the weather specifics in April, you can visit Barisan weather in April.
In comparing the weather between September and May, both months experience similar maximum temperatures, reaching up to 32°C (90°F). However, September starts off slightly cooler with an average temperature of 24°C (75°F), compared to May's warmer average of 25°C (78°F). Precipitation is higher in September, totaling 82 mm (3.2 in) over 9 rainy days, while May sees a more moderate amount of 69 mm (2.7 in) over 11 days, contributing to its slightly higher humidity level of 82% versus September's 77%. For more insights about May weather, you can explore Barisan weather in May.
In comparing the weather of September and June, we observe that both months feature similar average temperatures, with September having a slightly higher maximum at 32°C (90°F) compared to June's 31°C (88°F). June's minimum temperature is marginally higher at 18°C (64°F), while September's minimum rests at 17°C (62°F). Precipitation levels are notably greater in September, with 82 mm (3.2 in) over 9 days, compared to June's 63 mm (2.5 in) across 10 days, suggesting that September typically experiences more rain despite its slightly lower humidity of 77% versus June's 81%. For a closer look at weather specifics, you can check Barisan weather in June.
In comparing the weather patterns of September and July, we find some notable differences. September experiences slightly warmer average temperatures, with a minimum of 17°C (62°F) and a maximum reaching 32°C (90°F), while July has an average of 23°C (74°F) and the same maximum of 32°C (89°F). Additionally, September sees significantly more precipitation, totaling 82 mm (3.2 inches) over 9 days, compared to July's much drier conditions with only 20 mm (0.8 inches) over 4 days. Humidity levels are quite comparable, with September at 77% and July at 79%. For more details on the July weather conditions, you can visit Barisan weather in July.
In August, the weather is slightly cooler with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 30°C (86°F). The month sees limited rainfall, with only 23 mm (0.9 in) of precipitation over 7 days and humidity levels at 79%. In contrast, September experiences warmer conditions, with temperatures ranging from a minimum of 17°C (62°F) to a maximum of 32°C (90°F) and an average of 24°C (75°F). Additionally, September has increased rainfall, totaling 82 mm (3.2 in) spread across 9 days, while humidity remains relatively high at 77%. For more details on August weather in this region, you can visit Barisan weather in August.
September and October showcase a transition in weather patterns, though both months remain quite warm. In September, temperatures range from a minimum of 17°C (62°F) to a maximum of 32°C (90°F), with an average of 24°C (75°F). The month experiences about 82 mm (3.2 in) of precipitation over 9 days, accompanied by a humidity level of 77%. In contrast, October sees a slight increase in temperature with a minimum of 19°C (66°F) and an average of 25°C (77°F), while the maximum stays similar at 32°C (89°F). However, this month also brings more rain, totaling 96 mm (3.8 in) across 17 days, maintaining the same humidity level of 77%. For more details on weather specific to October, you can check Barisan weather in October.
September and November offer distinct weather experiences despite having similar maximum temperatures. In September, the temperatures range from a minimum of 17°C (62°F) to a maximum of 32°C (90°F), with an average of 24°C (75°F) and 82 mm (3.2 in) of rainfall over 9 days. The humidity is relatively high at 77%. In contrast, November sees a slight increase in the minimum temperature to 19°C (67°F) and an average of 25°C (78°F), but it is marked by significantly more precipitation, totaling 357 mm (14.0 in) across 25 days. The humidity remains consistent at around 78%. For a detailed look at November's weather specifics, you can visit Barisan weather in November.
In September, the weather is relatively warm with average temperatures around 24°C (75°F) and a maximum of 32°C (90°F), but it experiences significant rainfall, totaling 82 mm (3.2 in) over 9 days. In contrast, December brings slightly warmer conditions, with average temperatures reaching 26°C (78°F) and highs of 33°C (93°F). However, December is much wetter, experiencing about 315 mm (12.4 in) of precipitation spread over 29 days, maintaining the same humidity level of 77%. For more detailed information, check out Barisan weather in December.
As September unfolds in Barisan, its weather showcases a delightful transition that sets it apart from the preceding months. The combination of warm temperatures and increased humidity fosters a unique tropical atmosphere, encouraging lush greenery and vibrant landscapes. This month experiences a notable rise in precipitation, with a significant number of rainy days, refreshing the surroundings and preparing for the upcoming months. Compared to the drier spell of the summer, September's weather becomes a blend of warmth and refreshing rains, making it an intriguing time to experience nature's rejuvenation. For a deeper insight into how Barisan’s weather patterns fluctuate throughout the year, visit Barisan Climate.