Last updated: August 21, 2025
In September, Rantepao, Indonesia, experiences a warm tropical climate, with maximum temperatures reaching up to 31°C (88°F). The average temperature hovers around 23°C (74°F), while nights can cool down to a refreshing 15°C (59°F). This month is characterized by significant precipitation, totaling 119 mm (4.7 in) over approximately 15 rainy days, contributing to the region's lush greenery. With humidity levels peaking at 78%, visitors can expect a vibrant yet moist atmosphere, perfect for exploring the natural beauty of this enchanting destination.
In September, Rantepao, Indonesia experiences a delightful transition in temperatures, showcasing a slight dip in the minimum temperature to 15°C (59°F), while still enjoying a pleasant average of 23°C (74°F). The days can warm up to a comfortable 31°C (88°F), making it an inviting time for outdoor adventures. This month marks a gradual shift towards cooler weather, following the consistent warmth of the previous months. As September approaches, visitors can expect a refreshing balance of cool nights and warm days, perfect for exploring the stunning landscapes that Rantepao has to offer.
In September, Rantepao experiences a notable shift in precipitation patterns, with a total of 119 mm (4.7 in) of rainfall over just 15 days, marking one of the driest months of the year. This decline in precipitation follows the peak wet months of March and April, which saw rainfall amounts exceeding 600 mm. As the dry season approaches, the reduction in rainfall not only offers a respite from the heavy downpours earlier in the year but also sets the stage for clearer skies and milder weather. This transition from a lush landscape dominated by rainfall to a more temperate climate resonates with the gradual tapering off of rainfall seen from August to October, inviting locals and travelers alike to enjoy Rantepao's stunning natural beauty during this serene period.
In Rantepao, Indonesia, September marks a notable shift in humidity levels, dipping to 78%, which is among the lowest of the year. This decrease follows a summer where humidity remained consistently high, averaging between 81% and 86% from January through August. As the region transitions into the latter months of the year, the slight reduction in humidity not only provides a respite from the more oppressive conditions of the preceding months but also hints at the approach of the rainy season. This trend continues into October, maintaining the 78% level before increasing again in November. Overall, September serves as a bridge, offering a more comfortable atmosphere as Rantepao begins to prepare for the wetter months ahead.
September in Rantepao, Indonesia, continues the trend of extreme UV exposure, with a UV Index of 15 and a burn time of just 10 minutes. Following the peak months of January through March, which saw an exceptional index of 17, there is a slight decrease as summer draws to a close, yet caution remains essential. The UV Index consistently hovers in the high range throughout the year, reinforcing the need for sun protection even as the season transitions. For those planning to enjoy the outdoor beauty of Rantepao, awareness of the UV Index is crucial. Stay informed and protect your skin! For more details, visit Rantepao UV Index.
UV Risk Categories
As the vibrant days of September dawn in Rantepao, Indonesia, the region enjoys a commendable 289 hours of sunshine, a continuation of the summer-like warmth experienced throughout August. This month follows a notable trend of increasing daylight hours, peaking with 298 hours in August and inching towards the even sunnier 299 hours projected for October. From a modest 209 hours in January to the late bloom of sunshine in September, Rantepao showcases a delightful progression of daylight. The gradual ascent through the months highlights not only the region's inviting climate but also sets the stage for outdoor adventures and breathtaking landscapes bathed in golden light.
In Rantepao, Indonesia, the likelihood of sunny weather experiences a gradual ascent as the year progresses, peaking in October with a promising 25% chance of sunshine. After a modest start, where January and February hover around a mere 5% to 7%, there is a steady increase, particularly noticeable from May through July, where opportunities for clear skies rise to between 22% and 29%. By September, the chance of sun stabilizes at 20%, aligning with the early months of the dry season. This trend suggests that if you’re planning a trip to Rantepao in September, you can expect a balanced blend of sun and clouds, making it a delightful time to explore the picturesque landscapes.
In September, Rantepao, Indonesia, enjoys a consistent daylight duration of 12 hours, mirroring the stable lighting pattern observed throughout much of the year. This steady balance of light and dark is a characteristic feature from January to April and again from October to December, while the months of May to July experience a slight reduction to 11 hours. Such trends reflect the region's equatorial climate, where daylight remains fairly uniform, providing residents and visitors alike with ample opportunities to explore the rich natural beauty and vibrant culture of this enchanting locale.
In September, the gentle embrace of the wind in Rantepao, Indonesia, flows at an average speed of 1.1 m/s (3 mph), maintaining the steady breeze characteristic of the region. This slight uptick from earlier months, where speeds hovered around 1.0 m/s, reflects a subtle shift as the area transitions into the heart of its dry season. With wind speeds generally remaining consistent throughout the year, peaking slightly in the latter summer months, September serves as a gentle reminder of the lingering warmth while hinting at the upcoming changes in weather. The idyllic conditions invite both locals and travelers to revel in the serene atmosphere, making it a perfect time to explore the captivating landscapes that surround this vibrant part of Indonesia.
Weather in Rantepao varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rantepao, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit noticeable differences in weather patterns. In September, the temperatures range from a minimum of 15°C (59°F) to a maximum of 31°C (88°F), with an average of 23°C (74°F). The month experiences moderate rainfall, totaling 119 mm (4.7 in) over approximately 15 days and maintains a humidity level of 78%. In contrast, January sees a slightly warmer temperature range, with minimums of 19°C (66°F) and maximums reaching 32°C (90°F), averaging at 24°C (76°F). However, January is characterized by significantly higher precipitation, accumulating 471 mm (18.5 in) across about 25 days, coupled with a humidity of 84%. For more specific insights about January weather, you can visit Rantepao weather in January.
In comparing the weather between September and February, September features a milder temperature range with a minimum of 15°C (59°F) and a maximum of 31°C (88°F), resulting in an average of 23°C (74°F). However, it experiences a fair amount of precipitation, with 119 mm (4.7 in) falling over 15 days and a humidity level of 78%. In contrast, February tends to be warmer, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (92°F), averaging 24°C (75°F). This month is significantly wetter, accumulating 444 mm (17.5 in) of rain over 27 days, accompanied by higher humidity at 86%. For more detailed insights into February's weather, you can check Rantepao weather in February.
September and March present distinct weather patterns, despite having similar maximum temperatures of 31°C (88°F). In September, the climate features a milder average temperature of 23°C (74°F) and lower humidity at 78%, with precipitation totaling 119 mm (4.7 in) spread over 15 days. In contrast, March is characterized by a slightly warmer average temperature of 24°C (75°F) and higher humidity at 86%. It experiences significantly more rainfall, with a staggering 637 mm (25.1 in) over 30 days. Thus, while both months can reach the same peak temperatures, March is notably wetter and more humid, making it a very different experience overall. For more detailed insights, you can visit Rantepao weather in March.
When comparing the weather in September and April, there are noticeable differences in both temperature and precipitation. September sees a temperature range from a minimum of 15°C (59°F) to a maximum of 31°C (88°F), with an average of 23°C (74°F). It typically experiences 119 mm (4.7 in) of precipitation over 15 days, with a humidity level of 78%. In contrast, April has slightly higher temperatures, with a minimum of 19°C (66°F) and the same maximum of 31°C (88°F), resulting in an average of 24°C (75°F). However, April is much wetter, boasting 544 mm (21.4 in) of rainfall across 28 days and a humidity level of 84%. For more detailed information, you can check Rantepao weather in April.
September and May offer distinct weather patterns, with September typically having slightly lower temperatures and less precipitation. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 31°C (88°F), with an average of 23°C (74°F) and total rainfall of 119 mm (4.7 in) over 15 days. In contrast, May experiences warmer temperatures, with a minimum of 18°C (65°F) and an average of 24°C (75°F), while also being considerably wetter, receiving 247 mm (9.7 in) of rain over 26 days. Furthermore, humidity levels are marginally higher in May at 81%, compared to 78% in September. For more detailed information on the weather in Rantepao during May, visit Rantepao weather in May.
In comparing the weather between September and June, both months exhibit similar average temperatures, around 23°C (74°F), yet their other characteristics differ notably. September experiences a slightly higher maximum temperature of 31°C (88°F), while June's maximum is slightly lower at 30°C (87°F). However, June is significantly wetter, with a total precipitation of 239 mm (9.4 in) over 22 days compared to September's 119 mm (4.7 in) across 15 days. The humidity levels also reflect this wetter trend, with June at 82% compared to September's 78%. For more detailed information about June weather, you can check out Rantepao weather in June.
When comparing the weather in September and July, both months exhibit warm temperatures with July showing slightly higher minimum and maximum temperatures. September sees a minimum of 15°C (59°F) and a maximum of 31°C (88°F), while July has temperatures ranging from 16°C (61°F) to 30°C (86°F). However, July experiences significantly more rainfall, with 183 mm (7.2 in) over 22 days, compared to September's 119 mm (4.7 in) over 15 days. Additionally, humidity is slightly higher in July at 83% versus September's 78%. For more details on July weather in Rantepao, visit Rantepao weather in July.
In comparing the weather of September and August, we observe a slight decrease in temperature, with September experiencing minimums of 15°C (59°F) and maximums of 31°C (88°F), compared to August's 16°C (60°F) minimum and 30°C (87°F) maximum. Both months have an average temperature of 23°C (74°F). However, September brings slightly less precipitation at 119 mm (4.7 in) over 15 days, whereas August sees 135 mm (5.3 in) falling across 19 days. Additionally, humidity levels are a touch lower in September at 78% compared to August’s 83%. For more detailed weather insights for August, visit Rantepao weather in August.
In comparing the weather between September and October, we see a noticeable warming trend. September experiences minimum temperatures around 15°C (59°F) and an average of 23°C (74°F), while October sees slightly higher temperatures, with minima at 17°C (63°F) and an average of 24°C (76°F). Furthermore, October brings not only warmer conditions but also increased rainfall, totaling 178 mm (7.0 in) over 20 days, compared to September's 119 mm (4.7 in) over just 15 days. Despite the rise in precipitation, humidity remains consistent at 78% for both months. For a detailed look at the climate specifics in October, you can visit Rantepao weather in October.
In comparing the weather between September and November, we observe a slight increase in average temperatures, with September averaging 23°C (74°F) and November at 24°C (76°F). Both months experience warm conditions, but November typically sees higher maximum temperatures, reaching up to 32°C (90°F), compared to September’s peak of 31°C (88°F). However, November is markedly wetter, with precipitation rising to 281 mm (11.1 in) over 23 days of rain, contrasting sharply with September's 119 mm (4.7 in) over just 15 days. Humidity remains relatively stable at 78% in September and 79% in November, contributing to a consistently humid environment. For more detailed insights, check out the Rantepao weather in November.
In September, the weather is typically warm, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 31°C (88°F) and an average of 23°C (74°F). The month experiences a moderate level of rainfall, totaling 119 mm (4.7 in) over about 15 days, accompanied by a humidity level of 78%. In contrast, December sees slightly higher temperatures, with a minimum of 18°C (65°F) and a maximum of 33°C (92°F), averaging around 24°C (76°F). However, December is significantly wetter, receiving 444 mm (17.5 in) of precipitation over 29 days and an increase in humidity to 83%. For more detailed information on the conditions in December, you can check Rantepao weather in December.
As September rolls in, Rantepao experiences a shift in weather that sets it apart from other months. With a pleasant average temperature of around 23°C, daytime highs soar to a warm 31°C, while cooler nights dip to about 15°C. This transitional period brings a notable increase in precipitation, as the region sees around 119 mm across approximately 15 wet days, accompanied by humidity levels that linger around 78%. Such conditions not only create a lush, green landscape but also foster a vibrant atmosphere, making September a unique time to explore the beauty of Rantepao. For more detailed insights, check out Rantepao Climate.