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September Weather in Lawang, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Lawang, Indonesia is a pleasant 25°C (77°F). However, expect a range with minimums dipping to 16°C (61°F) and maximums soaring up to 33°C (92°F). While you enjoy the warmth, keep in mind that precipitation can reach about 19 mm (0.7 in) over 4 days, with an average humidity level of 72%.

September Temperature in Lawang

In September in Lawang, the average temperature is 25°C (77°F). The maximum can reach 33°C (92°F) and the minimum can drop as low as 16°C (61°F). This mild climate makes Lawang an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Lawang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lawang, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (92°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec767676777776757577797877
Data source: Temperature data for Lawang 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 Lawang

In Lawang in September, the precipitation amount is 19 mm (0.7 in) over the course of 4 days.

September Precipitation Trends in Lawang

The chart displays monthly precipitation patterns in Lawang, 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 Lawang, September typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec489552554248623512121961278444
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lawang

In Lawang in September, humidity is 72%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration both vibrant and a bit taxing as you sweat slightly more and seek shade often while enjoying the scenery.

September Average Humidity in Lawang

This chart illustrates the average monthly humidity levels in Lawang, 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 Lawang is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%85%83%80%81%80%78%74%72%72%73%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lawang

In Lawang in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Lawang, you can check here.

Maximum UV Index Levels in Lawang for September

The chart shows the monthly maximum UV Index (UVI) for Lawang 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 Lawang typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141515131310121314141413
Data source: Lawang 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 Lawang Compares to Other Months

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

This table compares monthly weather conditions in Lawang, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)489 mm (19.3 inches)81%extreme
February Weather24°C (76°F)552 mm (21.7 inches)85%extreme
March Weather24°C (76°F)554 mm (21.8 inches)83%extreme
April Weather25°C (77°F)248 mm (9.8 inches)80%extreme
May Weather25°C (77°F)62 mm (2.4 inches)81%extreme
June Weather25°C (77°F)35 mm (1.4 inches)80%very high
July Weather24°C (76°F)12 mm (0.5 inches)78%extreme
August Weather24°C (76°F)12 mm (0.5 inches)74%extreme
September Weather25°C (77°F)19 mm (0.7 inches)72%extreme
October Weather26°C (79°F)61 mm (2.4 inches)72%extreme
November Weather26°C (79°F)278 mm (10.9 inches)73%extreme
December Weather25°C (77°F)444 mm (17.5 inches)75%extreme

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