September Weather in Parapat, Indonesia

Last updated: August 21, 2025

In September, Parapat, Indonesia, experiences a tropical climate characterized by a maximum temperature of 30°C (86°F) and a comfortable average of 23°C (73°F). The weather is marked by high humidity levels at 89%, creating a warm atmosphere, while the minimum temperature dips to 18°C (65°F). With precipitation totaling 356 mm (14.0 in), the month witnesses rain on 29 days, contributing to the lush greenery that makes this region a stunning destination for nature enthusiasts. Whether you're exploring the scenic landscapes or relaxing by the lake, September offers a vibrant and refreshing experience in Parapat.

September Temperature in Parapat

In September, temperatures in Parapat, Indonesia continue the region's characteristic warmth, with a minimum of 18°C (65°F) and a pleasant average hovering around 23°C (73°F). The maximum temperature peaks at 30°C (86°F), maintaining a comfortable vibe perfect for exploring the stunning landscapes. Notably, September mirrors the month's predecessor, August, with similar temperature ranges, reflecting a consistent tropical climate as the transition towards the end of the year begins. This stable weather, coupled with lower humidity levels often seen during this time, makes September an inviting choice for travelers seeking to experience Parapat's natural beauty without the sting of oppressive heat.

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

The chart illustrates September temperature patterns in Parapat, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Parapat, 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).
JanFebMarAprMayJunJulAugSepOctNovDec737374747575747473737373
Data source: Temperature data for Parapat 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 Parapat

In September, Parapat, Indonesia experiences a significant uptick in precipitation, receiving an impressive 356 mm (14.0 in) of rain over 29 days. This marks a peak in the monthly rainfall compared to the preceding months, highlighting the transition into a wetter season. The average daily rain intensifies, contributing substantially to the cumulative annual total. With such frequent rainfall, the lush landscapes surrounding Parapat come alive, creating a vibrant backdrop that captivates both locals and visitors alike. As the month unfolds, the rhythm of rain becomes a defining characteristic, setting the stage for the even higher precipitation totals expected in November, which averages 386 mm (15.2 in), making this period a crucial time for both agriculture and nature in the region.

September Precipitation Trends in Parapat

The chart displays monthly precipitation patterns in Parapat, 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 Parapat, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec208175205241299266205221356296386314
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Parapat

As September rolls into Parapat, Indonesia, residents and visitors alike can expect the highest humidity of the year, reaching a significant 89%. This marks a notable increase from the preceding months, which consistently hover in the mid to upper 80s. The trend shows a gradual rise in humidity from 83% in January, culminating in the peak of September. Following this peak, the month of October mirrors September's humidity, suggesting a prolonged dampness that characterizes the onset of Indonesia's wet season. As the year draws to a close, humidity remains relatively stable, with values between 88% and 89% in November and December, indicating that while the heat may cool, the moisture in the air continues to blanket the region.

September Average Humidity in Parapat

This chart illustrates the average monthly humidity levels in Parapat, 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 Parapat is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%74%77%83%85%84%87%89%89%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Parapat

In September, Parapat, Indonesia, continues to experience an extreme UV Index of 15, maintaining a trend observed throughout the months leading up to this point. With a consistent burn time of just 10 minutes, visitors should remain vigilant when enjoying the stunning landscapes, as the UV levels reflect a relentless intensity that peaks during the dry season. This month's UV Index is on par with August and October, illustrating a steady pattern of high exposure that emphasizes the need for sun protection. Whether you're exploring the vibrant surroundings or relaxing by the lake, make sure to check the full details at Parapat UV Index to stay safe under the sun.

Maximum UV Index Levels in Parapat for September

The chart shows the monthly maximum UV Index (UVI) for Parapat 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 Parapat typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141617161613131515151413
Data source: Parapat 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 Parapat

As September unfolds in Parapat, Indonesia, the days are graced with an impressive 274 hours of sunshine, marking a continuation of the region's vibrant summer. This follows a trend of abundant sunlight that has characterized the preceding months, especially July and August, which boasted 305 and 302 hours, respectively. Despite a slight dip, September still shines brighter than earlier in the year, showcasing a consistent pattern of increasing daylight from the darker months of November and December. As the year progresses towards its close, visitors can revel in the lingering warmth and luminous days, making September a delightful time to experience the natural beauty of this scenic paradise.

Monthly Sunshine Duration in Parapat: September Highlighted

The September sunshine duration represents the total number of hours Parapat 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.
JanFebMarAprMayJunJulAugSepOctNovDec227h286h305h262h268h292h305h302h274h267h215h261h
Data source: Parapat September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Parapat During September

In Parapat, Indonesia, the likelihood of sunny weather in September is relatively low, with only a 9% chance of sunshine. This modest probability reflects a trend in the month, as it follows a summer season characterized by even more limited sunlight, particularly in August at 7%. As the year progresses, the chances of sunny days fluctuate, with February peaking at 21% before the onset of wetter months. September sits within a generally cloudy period, suggesting that visitors should be prepared for overcast skies rather than relying on bright, sunny days during their stay.

Percentage of Sunny Days in September in Parapat

The chart illustrates the percentage of sunny days in Parapat 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 Parapat experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec5%21%14%6%8%12%13%7%9%8%3%8%
Data source: Parapat September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Parapat in September

In September, daylight in Parapat, Indonesia remains consistently vibrant, offering a wholesome 12 hours of sunlight each day. This steady duration, which begins in February and continues through October, highlights the region's tropical climate and its relative stability in daylight hours. Following the longer days of the middle months, November and December bring a slight decrease to 11 hours, ushering in the rainy season. Overall, this trend reflects a rhythmic balance of daylight, inviting residents and visitors alike to embrace the lush beauty and warm spirit of Parapat throughout the year.

Average Daylight Hours in Parapat for September

The chart illustrates the variation in daylight duration in Parapat throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 58m12h 1m12h 5m12h 9m12h 13m12h 15m12h 14m12h 11m12h 6m12h 2m11h 59m11h 57m
Data source: Parapat daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Parapat

In September, the gentle breeze of Parapat, Indonesia continues the pattern established through the year, with an average wind speed of 0.9 m/s (2 mph). This consistency in light winds is reminiscent of the preceding summer months, where speeds hovered around the same mark. As the year transitions into the more blustery months of October and December, where winds pick up slightly, September offers a tranquil reprieve, allowing visitors to enjoy the serene beauty of Lake Toba without the disruption of stronger gusts. Overall, the moderate winds throughout the year facilitate an enjoyable atmosphere, enhancing the picturesque charm of this stunning destination.

Average September Wind Speed in Parapat

The chart displays monthly wind speed patterns in Parapat, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.01.21.00.90.90.91.00.90.9 m/s1.10.91.2
Data source: Parapat September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Parapat Compares to Other Months

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

In September, the weather is characterized by a higher level of humidity at 89% and significantly more precipitation, with a total of 356 mm (14.0 in) spread across 29 days. The temperatures remain consistent, with a minimum of 18°C (65°F), an average of 23°C (73°F), and a maximum of 30°C (86°F). In contrast, January sees slightly lower humidity at 83% and reduced rainfall, totaling 208 mm (8.2 in) over 23 days. While the temperature range remains similar, the drier conditions in January provide a more comfortable climate compared to the wet and humid September. For more details on January weather, visit Parapat weather in January.

In comparing the weather of September and February, we see interesting similarities and differences. Both months maintain a consistent temperature range, with minimums around 18°C (65°F), averages at 23°C (73°F), and maximums peaking near 30°C (86-87°F). However, September experiences significantly higher precipitation, with 356 mm (14.0 in) of rain spread over 29 days, compared to February's 175 mm (6.9 in) over just 24 days. Additionally, humidity is notably higher in September at 89%, contrasting with February’s more comfortable 74%. For those curious about specific conditions during this cooler dry season, Parapat weather in February offers detailed insights.

In both September and March, temperatures remain comparable, with minimums around 18°C (65°F), averages of 23°C (73°F), and maximums reaching up to 30°C (86°F). However, the weather in September is characterized by significantly higher precipitation, totaling 356 mm (14.0 in) over 29 days, compared to March's 205 mm (8.1 in) over 27 days. Additionally, humidity levels in September are notably higher at 89%, whereas March experiences a more comfortable 74%. For more detailed insights, you can refer to Parapat weather in March.

In comparing the weather of September and April, it's evident that both months experience similar maximum temperatures, reaching around 30°C (86°F to 87°F). However, September tends to be slightly cooler on average, with temperatures ranging from a minimum of 18°C (65°F) to an average of 23°C (73°F), while April starts a bit warmer with a minimum of 20°C (68°F) and an average of 24°C (75°F). Additionally, September is significantly wetter, receiving 356 mm (14.0 in) of precipitation over 29 days compared to April's 241 mm (9.5 in) over 28 days. This contributes to September's higher humidity levels of 89%, contrasted with April's more comfortable 77%. For more detailed insights, you can check Parapat weather in April.

September and May showcase a transition in weather patterns. September features slightly cooler temperatures, with a minimum of 18°C (65°F) and an average of 23°C (73°F), while May presents a warmer minimum of 19°C (67°F) and an average of 24°C (75°F). Both months experience high humidity, but September is notably more humid at 89%, compared to May's 82%. Precipitation is considerable in both months, with September receiving 356 mm (14.0 in) over 29 days, slightly more than May's 299 mm (11.8 in) across 30 days. For a detailed look at May weather conditions, you can visit Parapat weather in May.

When comparing the weather in September and June, it's clear that both months feature warm temperatures, but with some notable differences. In September, the average temperature ranges from a minimum of 18°C (65°F) to a maximum of 30°C (86°F), while June is slightly warmer, with temperatures ranging from 19°C (67°F) to 32°C (89°F). Additionally, September experiences significantly more precipitation, totaling 356 mm (14.0 in) over 29 days, compared to June's 266 mm (10.5 in) over 26 days. The humidity is also slightly higher in September at 89%, compared to June's 85%. For more detailed information, you can check out Parapat weather in June.

September and July showcase similar temperature ranges, with both months experiencing a minimum of 18°C (65°F), an average of around 23°C (73°F), and a maximum close to 30°C (86°F in September and 87°F in July). However, September is noticeably wetter, receiving 356 mm (14.0 in) of precipitation over 29 days, compared to July's 205 mm (8.1 in) over 25 days. The humidity in September is slightly higher at 89%, whereas July maintains a more comfortable 84%. This increased rainfall in September contributes to a more humid atmosphere, making it feel more oppressive compared to the relatively drier conditions of July. For more details about July weather, check out Parapat weather in July.

In comparing the weather between August and September, both months experience similar average temperatures, with September having a slightly higher minimum and maximum temperature. However, September tends to be much wetter, receiving 356 mm of precipitation over 29 days, compared to August's 221 mm over 24 days. Humidity levels also rise slightly in September, reaching 89%, while August maintains a comfortable 87%. For a more detailed look at August's weather, you can check Parapat weather in August.

September and October share similar temperatures, with both months featuring a minimum of 18°C (65°F) and an average around 23°C (73°F). However, October slightly edges out September with a maximum temperature of 31°C (87°F) compared to September's 30°C (86°F). Precipitation also sees a decline, dropping from 356 mm (14.0 in) in September to 296 mm (11.6 in) in October, with both months experiencing a similar number of rainy days—29 in September and 28 in October. Humidity remains constant at 89% for both months, providing a tropical feel throughout. For a detailed look at October's weather, check out Parapat weather in October.

September and November exhibit similar average temperatures, with September featuring a low of 18°C (65°F) and a high of 30°C (86°F), while November has a slightly warmer minimum of 19°C (67°F) and a peak of 29°C (85°F). Both months experience significant rainfall, with September receiving 356 mm (14.0 in) and November increasing slightly to 386 mm (15.2 in). Additionally, the number of rainy days is quite close, with September having rain on 29 days and November on 30 days. Humidity levels remain high in both months, at 89% for September and 88% in November, contributing to a consistently damp climate. For more details on the weather in November, you can check Parapat weather in November.

In September, the weather features a slightly broader range of temperatures, with a minimum of 18°C (65°F) and a maximum of 30°C (86°F), while December sees a minimum temperature of 19°C (66°F) and a maximum of 29°C (84°F). Both months have similar average temperatures of around 23°C (73°F), but September experiences higher precipitation, with 356 mm (14.0 in) over 29 days compared to December's 314 mm (12.4 in) spread over 30 days. The humidity remains high in both months, at 89% in September and 88% in December, creating a consistently tropical climate. For more detailed weather information about December, you can check Parapat weather in December.

Compare Parapat's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Parapat

In September, Parapat experiences a unique blend of warm temperatures and high humidity, setting it apart from other months. The average temperature remains comfortably warm, making it perfect for outdoor activities, yet the elevated levels of precipitation and nearly daily rain can catch even the most prepared travelers off guard. With stunning landscapes enveloped in lush greenery, this month showcases Parapat's natural beauty, despite the frequent showers. The air is thick with moisture, creating a vibrant, tropical atmosphere that is both refreshing and invigorating. For those willing to embrace the rain, September offers a remarkable way to experience the rich climate of this beautiful region. For more detailed information, check out Parapat Climate.