September Weather in Sidemen, Indonesia

Last updated: August 21, 2025

In September, Sidemen, Indonesia experiences a tropical climate characterized by warm temperatures and notable humidity. The maximum temperature can reach up to 28°C (83°F), while the average temperature hovers around 25°C (76°F), providing a comfortable yet warm atmosphere. As the month progresses, temperatures can dip to a minimum of 21°C (70°F). With a total precipitation amount of 57 mm (2.2 in) spread across 15 days, expect frequent showers that contribute to the lush greenery that the region is renowned for. The humidity levels, averaging 71%, enhance the tropical feel, making this time of year ideal for experiencing the vibrant beauty of Sidemen’s landscape.

September Temperature in Sidemen

As September arrives in Sidemen, Indonesia, temperatures begin to subtly shift, reflecting the transition into the more humid months. With a minimum temperature of 21°C (70°F) and a maximum of 28°C (83°F), the weather remains pleasantly warm, offering a comfortable average of 25°C (76°F). This slight increase from the cooler August means that while the nights are still mild, the days are feeling increasingly tropical. Interestingly, September marks the end of the drier spell, paving the way for the rainy season, so visitors can expect an invigorating blend of warmth and the lush vibrancy that accompanies the changing season.

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

The chart illustrates September temperature patterns in Sidemen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sidemen, 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).
JanFebMarAprMayJunJulAugSepOctNovDec787878797877757576777879
Data source: Temperature data for Sidemen generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sidemen

In September, Sidemen, Indonesia, experiences a notable transition in its precipitation patterns. With an average rainfall of 57 mm (2.2 in) over 15 days, the month marks the beginning of a gradual decline in rainfall after the heavier downpours of the early year. This reduction reflects a broader trend as Sidemen shifts from the peak of the wet season towards the drier months, with October seeing a slight uptick to 85 mm (3.4 in). While September may be slightly drier, the lush greenery that flourishes from preceding months remains, creating a serene and vibrant landscape. As the days grow less rainy, the area is readying itself for the coming seasons, striking a balance between refreshing showers and the beauty of clear skies.

September Precipitation Trends in Sidemen

The chart displays monthly precipitation patterns in Sidemen, 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 Sidemen, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec334339296164827661665785279302
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sidemen

As September rolls into Sidemen, Indonesia, the humidity dips to 71%, marking a continued trend of decreasing moisture levels from the peak of the rainy season earlier in the year. The transition from August's 72% reflects a gradual shift towards drier conditions, as the region welcomes the onset of the drier months. This monthly decline in humidity, starting from January's 78% and progressively easing to October's 69%, suggests an inviting environment for visitors seeking respite from the heavier humidity of previous months. Overall, September offers a perfect blend of comfort and lush tropical beauty, ideal for exploration and relaxation.

September Average Humidity in Sidemen

This chart illustrates the average monthly humidity levels in Sidemen, 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 Sidemen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%84%82%80%79%76%73%72%71%69%69%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sidemen

As the sun blazes in September, Sidemen, Indonesia, experiences an extreme UV Index of 15, with a burn time of just 10 minutes. This trend of high UV levels marks a consistent pattern throughout the year, particularly from January to November, where the Index often hovers between 14 and 16. Notably, the exposure category remains challenging, underscoring the importance of sun safety measures for residents and travelers alike. With such intense UV radiation, it’s essential to remain vigilant and protected while enjoying the beautiful landscapes of Sidemen. For more detailed insights, check out Sidemen UV Index.

Maximum UV Index Levels in Sidemen for September

The chart shows the monthly maximum UV Index (UVI) for Sidemen 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 Sidemen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151615151310111315151414
Data source: Sidemen 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 Sidemen

In Sidemen, Indonesia, September shines brightly with 304 hours of sunshine, continuing the trend of abundant daylight that commenced in May. The summer months reveal a vibrant peak, with hours of sunlight steadily increasing from 229 hours in January to a glorious 311 hours in August. As September ushers in the start of the rainy season, the sun still manages to cast its warm glow for most of the month, making it a delightful time for travelers. This steady sunshine pattern persists into October, where it reaches its pinnacle at 319 hours, promising a spectacular backdrop for visitors embracing the lush landscapes and vibrant culture of this idyllic Bali village.

Monthly Sunshine Duration in Sidemen: September Highlighted

The September sunshine duration represents the total number of hours Sidemen 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.
JanFebMarAprMayJunJulAugSepOctNovDec229h270h295h294h307h295h308h311h304h319h293h291h
Data source: Sidemen September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sidemen During September

In Sidemen, Indonesia, the likelihood of sunny weather experiences a notable shift as the year progresses. From a mere 4% in January, the chances of sunshine steadily rise until they peak in July with an impressive 47%. However, as September approaches, the odds of enjoying clear skies dip to 32%, indicating a transition towards the wetter season. This pattern highlights that while September may still offer some sunny days, it marks a return to more unpredictable weather, contrasting sharply with the bright, drier months of April through July. Travelers planning their September escape should keep this in mind, as the serenity of Sidemen's landscapes may be accompanied by occasional rain.

Percentage of Sunny Days in September in Sidemen

The chart illustrates the percentage of sunny days in Sidemen 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 Sidemen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec4%6%14%44%42%42%47%40%32%27%7%14%
Data source: Sidemen September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sidemen in September

In Sidemen, Indonesia, the pattern of daylight duration throughout the year reveals a fascinating harmony with the region's climate. From January to March, the days consistently stretch to a full 12 hours, creating a routine of abundant sunlight. As the calendar shifts to April, a subtle transition occurs, with daylight decreasing to 11 hours and continuing at this length through the summer months of May to August. This slight reduction reflects the region's tropical rhythm, perhaps inviting longer evenings to enjoy the vibrant twilight. However, in September, daylight springs back to 12 hours, marking a return to the sunlit balance, a trend that continues into the final months of the year, bringing with it the promise of equal day and night as nature hints at the upcoming changes of the season.

Average Daylight Hours in Sidemen for September

The chart illustrates the variation in daylight duration in Sidemen throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 32m12h 21m12h 7m11h 53m11h 42m11h 37m11h 40m11h 49m12h 2m12h 16m12h 29m12h 35m
Data source: Sidemen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Sidemen

As September unfolds in Sidemen, Indonesia, the average wind speed settles at a refreshing 3.2 m/s (7 mph), a slight dip from the preceding months. This gentle breeze follows a trend of increasing winds from June through August, where speeds peak at 3.4 m/s (8 mph). The consistent wind pattern during these months hints at the region's vibrant climatic shifts, transitioning from the calmer spring to the invigorating autumn. As the year continues into October, winds remain comparable, creating a delightful environment for outdoor activities, while also serving as a reminder of the natural rhythm that characterizes Sidemen's landscapes.

Average September Wind Speed in Sidemen

The chart displays monthly wind speed patterns in Sidemen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.72.41.92.32.72.23.33.43.2 m/s3.12.02.6
Data source: Sidemen September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Sidemen Compares to Other Months

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

In September, the weather typically features temperatures ranging from a mild 21°C (70°F) to a maximum of 28°C (83°F), with an average temperature of 25°C (76°F). The month experiences moderate rainfall with around 57 mm (2.2 inches) of precipitation spread over 15 days, and humidity levels average around 71%.

In contrast, January brings warmer conditions, with minimum temperatures of 23°C (74°F) and highs reaching up to 30°C (85°F), averaging 26°C (78°F). However, it also sees a significant increase in precipitation, totaling 334 mm (13.2 inches) over 24 days, along with higher humidity levels at 78%. This stark difference illustrates the shift from the relatively drier September to the wetter conditions of January. For more detailed information, visit Sidemen weather in January.

September and February present distinct weather patterns, with September generally being slightly cooler and drier than February. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), accompanied by an average of 25°C (76°F) and 57 mm (2.2 in) of rainfall over 15 days, resulting in a humidity level of 71%. In contrast, February tends to be warmer, with minimum temperatures of 23°C (74°F) and maximums reaching 29°C (85°F), averaging around 26°C (78°F). However, it experiences significantly higher precipitation, totaling 338 mm (13.3 in) over 26 days and a higher humidity level of 84%. For more detailed weather information, you can check out Sidemen weather in February.

September typically experiences milder temperatures with a minimum of 21°C (70°F) and an average of 25°C (76°F), peaking at 28°C (83°F). The month sees moderate precipitation of 57 mm (2.2 in) over approximately 15 rainy days, with humidity levels around 71%. In contrast, March is warmer, with temperatures starting at a minimum of 23°C (74°F) and reaching an average of 26°C (79°F), soaring to a maximum of 30°C (86°F). However, it also brings significantly more rainfall, totaling 296 mm (11.6 in) spread over 30 days, resulting in higher humidity at 82%. For more detailed information on March weather, visit Sidemen weather in March.

In September, the weather is generally warm, with average temperatures ranging from a comfortable 21°C (70°F) to a maximum of 28°C (83°F). However, this month experiences 57 mm (2.2 in) of precipitation over about 15 days, coupled with a humidity level of 71%. In contrast, April tends to be slightly warmer, with temperatures varying from a minimum of 23°C (74°F) to a maximum of 29°C (85°F). This month sees a significant increase in rainfall, totaling 164 mm (6.5 in) across approximately 22 days, and the humidity rises slightly to 80%. For more specific insights on the weather during April, check out Sidemen weather in April.

In comparing September and May weather, September features a slightly lower temperature range, with a minimum of 21°C (70°F) and an average of 25°C (76°F), while May is warmer with a minimum of 23°C (74°F) and an average of 26°C (79°F). Both months are characterized by significant humidity, with September at 71% and May slightly higher at 79%. Precipitation is more frequent in May, totaling 82 mm (3.2 in) over 17 days, compared to September's 57 mm (2.2 in) over 15 days. For more details on the conditions in May, you can check Sidemen weather in May.

In comparing the weather of September and June, both months exhibit similar average temperatures, hovering around 25°C (77°F). September tends to be slightly cooler with a minimum temperature of 21°C (70°F), while June's minimum is marginally higher at 22°C (71°F). June experiences greater rainfall, with 76 mm (3.0 in) over 17 days compared to September’s 57 mm (2.2 in) across 15 days. Additionally, June has a higher humidity level of 76%, compared to September's 71%. For a more detailed look at the weather patterns in June, visit Sidemen weather in June.

In comparing the weather between September and July, both months maintain comfortable temperatures, with July averaging a minimum of 21°C (70°F) and a maximum of 28°C (82°F), while September shows a slight increase with an average maximum of 28°C (83°F). Humidity levels are quite similar, with September at 71% and July at 73%. However, July receives slightly more precipitation, with 61 mm (2.4 in) compared to September's 57 mm (2.2 in). Both months experience rainfall on approximately 15 days, indicating a persistently wet climate. For a closer look at July weather specifics, check out Sidemen weather in July.

In comparing the weather between August and September, September offers slightly warmer average temperatures, with a minimum of 21°C and an average of 25°C, compared to August's minimum of 20°C and average of 24°C. Both months reach a maximum of 28°C, but August sees slightly more precipitation at 66 mm over 17 days, while September receives 57 mm over 15 days. Humidity levels are comparable, with August at 72% and September at 71%. For more details on August weather in Sidemen, you can check this link: Sidemen weather in August.

In September, the weather sees a minimum temperature of 21°C (70°F) with an average of 25°C (76°F) and a maximum of 28°C (83°F). This month experiences 57 mm (2.2 in) of precipitation over 15 days, alongside a humidity level of 71%. In contrast, October brings slightly warmer conditions with a minimum of 22°C (72°F), maintaining the average at 25°C (78°F) and reaching a maximum of 29°C (84°F). Rainfall increases in October to 85 mm (3.4 in), spread over 18 days, while humidity decreases slightly to 69%. For more detailed weather insights, you can check Sidemen weather in October.

In September, the weather features mild temperatures with a minimum of 21°C (70°F) and an average of 25°C (76°F), while the maximum reaches 28°C (83°F). The month experiences relatively moderate precipitation at 57 mm (2.2 in) over 15 days and maintains a humidity level of 71%. In contrast, November sees slightly warmer temperatures, with a minimum of 23°C (74°F) and an average of 26°C (79°F), peaking at 29°C (85°F). However, this month brings significantly more rainfall, totaling 279 mm (11.0 in) across 23 days, alongside a slight decrease in humidity to 69%. For more detailed insights on November weather, check out Sidemen weather in November.

September and December exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), with an average of 25°C (76°F). The month sees around 57 mm (2.2 in) of precipitation over approximately 15 days, while humidity hovers at 71%. Conversely, December experiences slightly higher temperatures, with a minimum of 23°C (75°F), an average of 26°C (79°F), and a maximum of 30°C (86°F). However, it also brings a significant increase in precipitation, totaling 302 mm (11.9 in) over 28 days, accompanied by a similar humidity level of 72%. For more detailed weather insights, you can refer to Sidemen weather in December.

Compare Sidemen's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Sidemen

As September unfolds in Sidemen, it's a month that distinctly stands out from the rest of the year, characterized by a blend of warmth and humidity that hints at the approaching wet season. Average temperatures hover comfortably around 25°C (76°F), while maximums can soar to 28°C (83°F), making it one of the warmest months. However, with 57 mm of rainfall spread over 15 days, the atmosphere is imbued with a lush vibrancy that rejuvenates the landscape. This combination of warmth and increased precipitation creates a unique dynamic, unlike the dryer months preceding it. For those wanting to delve deeper into how Sidemen's weather shapes its beautiful environment, explore more at Sidemen Climate.