Last updated: August 21, 2025
September in Jayapura, Indonesia brings a tropical climate marked by warm temperatures and high humidity. With maximums reaching 31°C (87°F) and averaging around 27°C (81°F), the weather remains consistently inviting, ideal for exploring the region's natural beauty. However, visitors should be prepared for significant precipitation, with around 200 mm (7.9 in) of rain expected over approximately 25 days. This month boasts an average humidity level of 86%, contributing to the lush vegetation that characterizes Jayapura's stunning landscapes.
In September, Jayapura, Indonesia, continues to bask in a tropical climate marked by stable temperatures. The minimum temperature hovers around 24°C (76°F), while the average remains a consistent 27°C (81°F), and the maximum peaks at a warm 31°C (87°F). This month reflects a slight dip in nightly temperatures compared to the height of summer, yet daytime warmth is still prevalent. Notably, September aligns with the trend observed throughout the year, demonstrating a delightful balance of warmth and humidity, perfect for exploring the stunning landscapes and vibrant culture of this captivating region.
September in Jayapura, Indonesia, marks a transition into the wetter months, with precipitation totaling 200 mm (7.9 in) over approximately 25 days of rain. While this amount is lower than the preceding months of March and April, it still indicates a significant rainfall pattern typical of the region during this time. The decline in precipitation from the heavier August rains suggests a slight reprieve before the rainfall spikes again in October, which averages 240 mm (9.5 in). This fluctuation reflects the dynamic nature of Jayapura's climate, where the interplay between wet and dry continues to shape its lush landscape. As the intensity of rainfall gradually shifts, September serves as a gentle reminder of the tropical monsoon influence that persists throughout the year.
In Jayapura, Indonesia, September marks a continuation of the city's high humidity, with levels reaching 86%—the same as in August. This trend of elevated moisture persists throughout the year, with only slight fluctuations: humidity hovers around the mid-80s from January through May, dips marginally in March, and peaks at 86% in the latter part of the year. As the region transitions into October, humidity remains steady at 85%, indicating a stable climate that is both tropical and lush. Overall, the consistent humidity levels throughout most of the year contribute to Jayapura's vibrant ecosystem and rich biodiversity, making it a unique destination for those who appreciate warm and humid tropical climates.
In September, Jayapura, Indonesia experiences a UV Index of 15, maintaining its designation as an extreme exposure category. This figure reflects a slight dip from the peak months earlier in the year, such as February and March, which saw an index of 17. Despite this decrease, the 10-minute burn time remains constant and underscores the need for sun protection measures. As the dry season flows into the latter part of the year, residents and visitors should stay vigilant, as the UV levels continue to hover in the extreme range through the following months. For more detailed information on UV exposure in the region, visit Jayapura UV Index.
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As September unfolds in Jayapura, Indonesia, the city basks in approximately 273 hours of glorious sunshine, marking a slight dip from the sunniest month of August but still remaining vibrant and bright. This month continues a trend of abundant daylight that begins in May with 271 hours and peaks in August with an impressive 282 hours. The warm rays of the sun create a lush, inviting atmosphere, perfect for outdoor adventures and cultural explorations. Comparatively, this sunny streak positions September higher than the earlier months of the year, reflecting the region's tropical climate and its natural allure, enticing both locals and visitors alike to savor the lingering summer days. As the year transitions into the more gentle sunlight of October, the enduring warmth of September lays the groundwork for continued enjoyment in this breathtaking locale.
In September, the chance of sunny weather in Jayapura, Indonesia, stands at 26%, marking a slight dip from the sunnier days of August, which boasts a 36% likelihood. As the dry season transitions towards the tail end of winter, this month still offers a relatively bright outlook, especially when compared to the gloomier early months of the year. Notably, September's sun chances align closely with those of July and October, indicating a consistent trend of moderate sunshine that can be expected at this time of year. Overall, while not the sunniest month, September holds promise for those seeking clearer skies in this tropical region.
In September, Jayapura, Indonesia, enjoys a balanced 12 hours of daylight, a trend that prevails throughout most of the year. This stability underscores the region's equatorial climate, maintaining consistent sun exposure from January to April and again from October to December. Interestingly, May through July sees a slight reduction with 11 hours of daylight, perhaps hinting at seasonal variations or weather patterns. However, as September arrives, the lengthening days return to their familiar rhythm, providing a steady backdrop for both daily activities and the vibrant natural beauty of the region.
In September, Jayapura experiences a delightful shift in winds, averaging 3.0 m/s (7 mph), which marks a consistent breeze reminiscent of the breezier months of August. This steady airflow hints at a transitional period, as it leads into the cooler months towards the year's end. Notably, September's wind speed mirrors the gentle gusts felt in the late summer, while preceding months like May and July saw calmer conditions with averages of 2.2 m/s (5 mph) and 2.3 m/s (5 mph), respectively. As the year progresses into October and November, the winds begin to taper off again, returning to a more tranquil pace, but for September, nature offers a refreshing breath of air that invigorates both the landscape and its inhabitants.
Weather in Jayapura varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jayapura, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January in Jayapura showcase remarkably similar temperature patterns, with both months exhibiting minimum temperatures around 24-25°C (76-77°F) and average highs reaching 31°C (87-88°F). However, September tends to be slightly wetter, with 200 mm (7.9 in) of precipitation over 25 days compared to January's 206 mm (8.1 in) across 22 days. Humidity levels are also very close, with September at 86% and January at 84%, providing a consistently tropical feel throughout both months. For further details, you can check Jayapura weather in January.
In comparing the weather conditions of September and February, we observe some notable similarities and differences. Both months enjoy a warm average temperature of around 27°C (81°F), with September slightly cooler at a maximum of 31°C (87°F) compared to February's high of 30°C (87°F). However, February tends to experience more precipitation, with 331 mm (13.0 in) of rain over 26 days, in contrast to September's 200 mm (7.9 in) across 25 days. Additionally, humidity levels remain high in both months, with September at 86% and February slightly lower at 84%. For a more detailed look at February weather, you can refer to Jayapura weather in February.
In September, the weather maintains a warm and humid atmosphere with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (87°F). With an average temperature of 27°C (81°F), this month experiences significant rainfall of 200 mm (7.9 in) spread across 25 days, resulting in high humidity levels of 86%.
Conversely, March has similar temperature ranges but sees an increase in precipitation, with a total of 339 mm (13.3 in) over 29 days, indicating a more pronounced rainy season. The average temperature remains consistent at 27°C (81°F), with a maximum of 31°C (88°F) and a slightly lower humidity of 83%. For more detailed information on March weather, visit Jayapura weather in March.
In September, the weather features consistently warm temperatures with a minimum of 24°C (76°F) and an average of 27°C (81°F), peaking at 31°C (87°F). However, the month experiences significant rainfall, with around 200 mm (7.9 in) falling over 25 days, contributing to a high humidity level of 86%. In contrast, April presents slightly warmer evenings, with a minimum temperature of 25°C (76°F), and a similar average of 27°C (81°F) and maximum of 31°C (88°F). April is notably wetter, receiving 315 mm (12.4 in) of rain across 27 days, leading to a humidity level of 85%. For a detailed look at the weather patterns in April, visit Jayapura weather in April.
When comparing the weather in September and May, both months exhibit similar average temperatures, hovering around 27°C (81°F). However, September has slightly lower minimum and maximum temperatures, with a minimum of 24°C (76°F) and a maximum of 31°C (87°F), compared to May, which has a minimum of 25°C (77°F) and a maximum of 31°C (88°F). Precipitation levels are notably higher in May, with 233 mm (9.2 in) over 29 days, compared to September's 200 mm (7.9 in) over 25 days. Additionally, humidity remains consistently high in both months, with September at 86% and May slightly lower at 84%. For more detailed weather information, you can check Jayapura weather in May.
September and June share similar average temperatures, with both months experiencing a minimum of 24°C (76°F) and an average of 27°C (81°F). However, June tends to be slightly wetter, accumulating 257 mm (10.1 in) of precipitation across 26 days, compared to September's 200 mm (7.9 in) over 25 days. Humidity levels also remain high in both months, with September at 86% and June at 85%. For more detailed insights, you can check the Jayapura weather in June.
In comparing the weather between September and July, we see some notable similarities and differences. Both months start with a minimum temperature of 24°C (76°F) and maintain an average temperature close to 27°C (81°F for September and 80°F for July). However, July tends to be slightly cooler with a maximum temperature of 30°C (87°F), while September reaches up to 31°C (87°F).
Precipitation levels also vary significantly; July experiences higher rainfall at 293 mm (11.6 in) compared to September's 200 mm (7.9 in), although both months feature precipitation on 25 days. Humidity remains relatively consistent, with September at 86% and July at 85%. Overall, while both months share warm temperatures and high humidity, July is marked by heavier rainfall. For more detailed information, you can visit Jayapura weather in July.
In comparing the weather between September and August, both months exhibit similar temperature ranges, with September having a minimum of 24°C (76°F), an average of 27°C (81°F), and a maximum of 31°C (87°F). August, on the other hand, sees temperatures that are slightly lower, with a maximum of 30°C (87°F). Precipitation levels, however, are notably different; September experiences 200 mm (7.9 in) of rain over 25 days, while August is wetter, with 239 mm (9.4 in) falling across 28 days. Both months maintain a high humidity level of 86%. For a more detailed look at August weather, please visit Jayapura weather in August.
September and October exhibit similar temperature ranges, with both months experiencing minimums of 24°C (76°F), averages of 27°C (81°F), and maximums around 31°C (87-88°F). However, October sees a slight increase in precipitation, totaling 240 mm (9.5 in) over 28 days, compared to September's 200 mm (7.9 in) over 25 days. Humidity levels remain fairly consistent, with September at 86% and October slightly lower at 85%. For more detailed insights into the weather during October, you can refer to Jayapura weather in October.
In September, temperatures in the region range from a minimum of 24°C (76°F) to a maximum of 31°C (87°F), with an average of 27°C (81°F). The month experiences significant rainfall, totaling 200 mm (7.9 in) across 25 days, and humidity levels are high at 86%. In contrast, November sees a slightly warmer minimum temperature of 25°C (77°F), with the same average and maximum temperatures as September. However, November has increased precipitation, with 315 mm (12.4 in) of rain over 27 days, while maintaining a slightly lower humidity level of 85%. For more detailed insights on November weather, you can visit Jayapura weather in November.
In comparing September and December weather, we see that both months feature similar average temperatures, with September having a minimum of 24°C (76°F) and December slightly higher at 25°C (77°F). The maximum temperatures remain consistent at around 31°C (87°F to 88°F). However, December experiences significantly more precipitation than September, with 334 mm (13.1 in) spread over 30 days compared to September's 200 mm (7.9 in) over 25 days. Additionally, humidity levels are slightly lower in December at 84%, compared to 86% in September. For more detailed information, check Jayapura weather in December.
As September unfolds in Jayapura, the weather brings a unique blend of warmth and humidity, setting it apart from the other months. With average temperatures hovering around a comfortable 27°C (81°F) and peaks reaching up to 31°C (87°F), the month maintains a tropical charm that invites both residents and visitors to explore the lush surroundings. However, September also witnesses a significant increase in rainfall, with over 200 mm (7.9 in) spread across many days, making it one of the wetter months of the year. The high humidity level at 86% contributes to a feeling of tropical abundance, often accentuating the vibrancy of the region's natural beauty. For a more detailed understanding of what's in store throughout the year, check out Jayapura Climate.