September Weather in Puncak, Indonesia

Last updated: August 21, 2025

In September, Puncak, Indonesia, experiences a delightful climate characterized by a maximum temperature reaching 30°C (86°F) and an average of 25°C (77°F), making it perfect for outdoor activities. The minimum temperature dips to 18°C (65°F), providing a refreshing coolness in the evenings. This month sees a precipitation total of 195 mm (7.7 in) across 12 rainy days, contributing to the lush greenery that Puncak is renowned for. With a humidity level of 77%, the atmosphere remains pleasantly tropical, ensuring a rich, vibrant experience for visitors and locals alike.

September Temperature in Puncak

In September, Puncak, Indonesia, experiences a delightful transition as temperatures remain comfortably moderate. With minimums dipping to 18°C (65°F) and maximums reaching 30°C (86°F), the month displays a pleasant consistency that beckons both adventure seekers and those looking to unwind. The average temperature hovers around 25°C (77°F), reflecting a blend of mildness that characterizes the early transition to Indonesia's wet season. Compared to the preceding months, September's temperatures remain relatively stable, marking a subtle shift from the cooler August to the warmer October. It's an ideal time to explore the lush landscapes and vibrant culture of this beautiful region.

September Weather in Puncak: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Puncak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puncak, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec797980808079777677787979
Data source: Temperature data for Puncak generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Puncak

In September, Puncak, Indonesia, experiences a notable uptick in precipitation, recording 195 mm (7.7 in) of rainfall over 12 days. This marks a shift from the drier months of July and August, characterized by a mere 63 mm and 34 mm respectively. As the region transitions into the wet season, September's rainfall acts as a precursor to the more substantial downpours that follow in October and November, where averages soar to 225 mm and 450 mm respectively. The increase in rainfall not only rehydrates the lush landscapes but also prepares the region for the peak of its monsoon season, highlighting how September serves as a pivotal bridge between the dry spell and the heavier, sustained rains ahead.

September Precipitation Trends in Puncak

The chart displays monthly precipitation patterns in Puncak, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Puncak, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2782873302771841556334195225450320
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Puncak

In September, Puncak, Indonesia, experiences a humidity level of 77%, maintaining the moderately comfortable trend set in the previous two months. This marks a notable decline from the peak humidity levels of 84% to 86% seen in the earlier months of the year. Following a gradual decrease from August's 77%, September's humidity reflects the onset of drier conditions as the region transitions from the lush, moisture-laden period of the monsoon. As the year progresses into October, humidity levels are anticipated to slightly rise again, illustrating the cyclical nature of Puncak's climate and providing a refreshing balance after the humid summer months.

September Average Humidity in Puncak

This chart illustrates the average monthly humidity levels in Puncak, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Puncak is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%84%81%80%80%79%77%77%78%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Puncak

In September, Puncak, Indonesia experiences a UV Index of 14, placing it firmly within the extreme exposure category, with a burn time of just 10 minutes. This trend reflects the region's consistently high UV levels throughout the year, particularly from January through April, where the index peaks at 16. After a slight dip in June and July, UV levels recover in August and September, indicating the need for vigilant sun protection measures year-round. Visitors and locals alike should remain aware of these intense UV conditions to safeguard their skin. For more details on UV conditions, check out Puncak UV Index.

Maximum UV Index Levels in Puncak for September

The chart shows the monthly maximum UV Index (UVI) for Puncak in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Puncak typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151311111314151514
Data source: Puncak September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Puncak

September in Puncak, Indonesia, showcases a delightful embrace of sunshine with an impressive 303 hours of daylight, making it one of the sunniest months of the year. This peak sunlit period follows a gradual rise from 211 hours in January to a remarkable 320 hours in August, illustrating a consistent increase in sunshine as the year progresses. Interestingly, while September experiences a slight dip from August, it remains robustly sunny, hinting at a year filled with luminosity and pleasant weather. As the month flows into October, the sunshine gently recedes to 297 hours, yet Puncak continues to bask in more than adequate daylight, ensuring a warm, inviting atmosphere for both locals and visitors.

Monthly Sunshine Duration in Puncak: September Highlighted

The September sunshine duration represents the total number of hours Puncak experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec211h251h286h282h305h297h319h320h303h297h254h264h
Data source: Puncak September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Puncak During September

In Puncak, Indonesia, September offers a 25% chance of sunny weather, reflecting a transition from the more vibrant sunshine of mid-year. Notably, this month's likelihood of clear skies is lower than the peak August conditions at 37%, but it still indicates a reasonably pleasant atmosphere compared to the overcast months that follow. As the dry season wanes, September captures a blend of mild sunshine and the lingering warmth of earlier months, making it a delightful time for outdoor activities before the rain returns in October, where the chance plummets to just 14%.

Percentage of Sunny Days in September in Puncak

The chart illustrates the percentage of sunny days in Puncak throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Puncak experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec3%8%10%40%34%24%45%37%25%14%5%8%
Data source: Puncak September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Puncak in September

In Puncak, Indonesia, the daylight duration exhibits a fascinating rhythm throughout the year. From January through March, residents enjoy a generous 12 hours of daylight, creating a vibrant atmosphere perfect for outdoor activities. As April arrives, daylight begins to taper slightly to 11 hours, maintaining this shorter duration until the end of August. However, as September rolls back around, daylight returns to a welcoming 12 hours, reminiscent of the early months of the year. This pattern of daylight offers a steady balance, ensuring that both the lush landscapes and bustling daily life of Puncak thrive under the sun's nurturing embrace.

Average Daylight Hours in Puncak for September

The chart illustrates the variation in daylight duration in Puncak throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 29m12h 19m12h 7m11h 55m11h 45m11h 40m11h 43m11h 51m12h 3m12h 15m12h 26m12h 32m
Data source: Puncak daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Puncak

September brings a refreshing breeze to Puncak, Indonesia, as average wind speeds reach 4.1 m/s (9 mph), matching the heights of August. This significant uptick from the calmer months of June and July highlights the start of a transitional period, where gentle winds shift into more invigorating gusts. Observing a general trend, the wind speed typically rises in the middle of the year, peaking during the late summer months before tapering off again into the softer breezes of late autumn. As September settles in, it serves as a perfect time to enjoy the outdoors, with a lively atmosphere complemented by the refreshing wind that dances through the lush landscapes of Puncak.

Average September Wind Speed in Puncak

The chart displays monthly wind speed patterns in Puncak, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.72.12.72.72.13.54.14.1 m/s3.42.12.0
Data source: Puncak September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Puncak Compares to Other Months

Weather in Puncak varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Puncak, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, temperatures generally range from a mild 18°C (65°F) at night to a warm 30°C (86°F) during the day, with an average of 25°C (77°F). The month experiences significant precipitation, accumulating 195 mm (7.7 in) over about 12 rainy days, coupled with a humidity level of 77%. In contrast, January sees slightly higher temperatures, with a minimum of 23°C (74°F) and a maximum of 32°C (90°F), averaging 26°C (80°F). However, it also brings more rainfall, with a total of 278 mm (10.9 in) spread across approximately 23 days, and humidity levels increase to 84%. For more detailed information on January weather, you can visit Puncak weather in January.

In comparing the weather between September and February, we see some notable differences. September typically enjoys milder temperatures, ranging from a minimum of 18°C (65°F) to an average of 25°C (77°F) and a maximum of 30°C (86°F). In contrast, February presents warmer conditions with a minimum of 23°C (74°F), an average of 26°C (80°F), and a peak of 31°C (88°F). Precipitation levels are also higher in February, with 287 mm (11.3 in) expected over 27 days compared to September's 195 mm (7.7 in) over 12 days. Additionally, February exhibits higher humidity at 86%, compared to September's 77%. For more details on February weather, you can visit Puncak weather in February.

When comparing the weather in September and March, notable differences emerge. September typically features a minimum temperature of 18°C (65°F) and an average of 25°C (77°F), while March enjoys a warmer minimum of 23°C (74°F) and a slightly higher average of 27°C (80°F). Additionally, March experiences more significant rainfall, with 329 mm (13.0 in) over 26 days, compared to September's 195 mm (7.7 in) spread over 12 days. Humidity also tends to be higher in March, averaging 84% versus September's 77%. For a more detailed look at March weather in this region, you can visit Puncak weather in March.

When comparing the weather in September and April, we notice some key differences. September exhibits a milder temperature range, with average temperatures hitting 25°C (77°F) and a maximum of 30°C (86°F), while April tends to be warmer, with average temperatures around 27°C (81°F) and highs reaching 32°C (90°F). Precipitation levels are notably higher in April, with 277 mm (10.9 in) over 26 days compared to September's 195 mm (7.7 in) across 12 days, leading to a more humid environment in April, sitting at 81% compared to September's 77%. For a closer look at the specific weather conditions in April, you can visit Puncak weather in April.

In comparing the weather between September and May, it's clear that May tends to be warmer overall. September has average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 30°C (86°F), while May boasts a minimum of 23°C (74°F) and a maximum of 32°C (89°F). Both months experience considerable rainfall, with September receiving 195 mm (7.7 in) over 12 days and May slightly less at 184 mm (7.2 in) across 17 days. Humidity levels are similar, with September at 77% and May at 80%. For more specific details on May weather, you can visit Puncak weather in May.

September and June offer distinct weather characteristics. In September, the temperatures range from a minimum of 18°C (65°F) to a maximum of 30°C (86°F), with an average of 25°C (77°F). The month sees higher precipitation at 195 mm (7.7 in) over 12 days, contributing to a humidity level of 77%. In contrast, June presents warmer temperatures, with a minimum of 21°C (69°F) and a maximum of 31°C (88°F), averaging around 26°C (79°F). Precipitation in June is slightly lower at 155 mm (6.1 in) spread over 14 days, while humidity is marginally higher at 80%. For more detailed insights, check out Puncak weather in June.

In comparing the weather between July and September, we see some notable differences. Both months exhibit an average temperature of 25°C (77°F) and similar maximum temperatures reaching 30°C (86°F). However, September tends to be slightly cooler at night, with a minimum temperature of 18°C (65°F) compared to July's 19°C (67°F). One significant difference is the precipitation: September experiences much higher rainfall with 195 mm (7.7 in) over 12 days, while July sees only 63 mm (2.5 in) across 8 days. Additionally, humidity levels are slightly higher in September at 77%, compared to July's 79%. For more detailed insights, you can check Puncak weather in July.

In September, the weather remains quite warm, with minimum temperatures of 18°C (65°F) and an average of 25°C (77°F), similar to August, which also boasts a minimum of 18°C (65°F) and an average of 25°C (77°F). However, September experiences slightly higher maximum temperatures, reaching 30°C (86°F), compared to August's maximum of 29°C (85°F). A notable difference between the two months is the precipitation; September sees significantly more rainfall, totaling 195 mm (7.7 in) over 12 days, compared to August's much drier conditions with only 34 mm (1.3 in) across 6 days. Despite these differences, both months maintain a consistent humidity level of 77%. For more details on August weather, you can check Puncak weather in August.

In comparing the weather of September and October, we note that both months feature average temperatures around 25°C (77°F), but October has a slightly higher minimum temperature of 20°C (69°F) compared to September's 18°C (65°F). Precipitation increases in October, with a total of 225 mm (8.9 in) over 21 days, compared to September's 195 mm (7.7 in) over 12 days. The humidity remains relatively stable, rising slightly from 77% in September to 78% in October. For more detailed insights, you can check out Puncak weather in October.

In comparing the weather between September and November, we can see some notable differences. September typically has a milder temperature range, with minimums around 18°C (65°F) and maximums reaching 30°C (86°F), while November sees slightly warmer temperatures, with minimums starting at 22°C (71°F) and maximums peaking at 31°C (87°F). However, November is significantly wetter, accumulating about 450 mm (17.7 in) of precipitation over 26 days, compared to September's 195 mm (7.7 in) across just 12 days. Both months maintain high humidity levels, though November's humidity is slightly higher at 80%, compared to September's 77%. For a more detailed perspective on conditions during this time, you can visit Puncak weather in November.

In September, the weather is characterized by a minimum temperature of 18°C (65°F) and an average of 25°C (77°F), with maximums reaching up to 30°C (86°F). The month experiences significant rainfall, totaling 195 mm (7.7 in) over about 12 days, alongside a humidity level of 77%.

Conversely, December boasts slightly higher temperatures, with a minimum of 23°C (73°F) and an average of 26°C (79°F), peaking at 31°C (87°F). However, it also brings more precipitation, with 320 mm (12.6 in) spread across 28 rainy days and a humidity increase to 79%. This shift in weather conditions can influence outdoor activities and travel plans. For more details on December weather in Puncak, visit Puncak weather in December.

Compare Puncak's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Puncak

As September unfolds in Puncak, expect a blend of warmth and moisture that sets it apart from the drier months. With an average temperature hovering around a comfortable 25°C, this month embraces a tropical charm, even as the humidity peaks at 77%, creating a lush atmosphere. However, the marked precipitation of 195 mm over 12 days indicates that rain showers are frequent, contributing to the region's vibrant greenery. September's distinctive weather patterns not only refresh the landscape but also invite adventure among nature enthusiasts. For a deeper dive into Puncak’s climate characteristics, check out Puncak Climate.