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September Weather in Longnawang, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Longnawang, Indonesia is a pleasant 23°C (73°F). Temperatures can range from a minimum of 16°C (61°F) to a maximum of 31°C (89°F). Be prepared for a moist atmosphere, as the average humidity hovers around 90%, and expect 283 mm (11.2 in) of precipitation spread over 25 days.

September Temperature in Longnawang

In September in Longnawang, the average temperature is 23°C (73°F). Maximums can reach 31°C (89°F) and minimums can be as low as 16°C (61°F). This pleasant weather makes Longnawang an ideal destination for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Longnawang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longnawang, September typically has an average temperature of 23°C (73°F), with highs reaching up to 31°C (89°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec727373737473727273737373
Data source: Temperature data for Longnawang 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 Longnawang

In Longnawang in September, the total precipitation amount is 283 mm (11.2 in) spread over 25 days.

September Precipitation Trends in Longnawang

The chart displays monthly precipitation patterns in Longnawang, 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 Longnawang, September typically receives around 283 mm (11.2 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec236267355366317284235275283321314326
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Longnawang

In Longnawang in September, humidity is 90%. With an average temperature of 23°C (73°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities sweaty and uncomfortable, and creating a need for frequent hydration breaks while exploring.

September Average Humidity in Longnawang

This chart illustrates the average monthly humidity levels in Longnawang, 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 Longnawang is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%91%90%88%89%89%91%90%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Longnawang

In Longnawang in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Longnawang.

Maximum UV Index Levels in Longnawang for September

The chart shows the monthly maximum UV Index (UVI) for Longnawang 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 Longnawang typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151717161513131516151514
Data source: Longnawang 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.

How September Weather in Longnawang Compares to Other Months

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

This table compares monthly weather conditions in Longnawang, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (73°F)236 mm (9.3 inches)90%extreme
February Weather23°C (73°F)267 mm (10.5 inches)89%extreme
March Weather23°C (73°F)355 mm (14.0 inches)91%extreme
April Weather23°C (73°F)366 mm (14.4 inches)89%extreme
May Weather23°C (74°F)317 mm (12.5 inches)88%extreme
June Weather23°C (73°F)284 mm (11.2 inches)88%extreme
July Weather22°C (73°F)235 mm (9.2 inches)88%extreme
August Weather22°C (73°F)275 mm (10.8 inches)91%extreme
September Weather23°C (73°F)283 mm (11.2 inches)90%extreme
October Weather23°C (73°F)321 mm (12.6 inches)90%extreme
November Weather23°C (73°F)314 mm (12.4 inches)89%extreme
December Weather23°C (73°F)326 mm (12.8 inches)90%extreme

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