September Weather in Lontar, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Lontar, Indonesia is a warm 27°C (81°F), with a minimum of 25°C (77°F) and a maximum of 29°C (84°F). Be prepared for some rain, as 111 mm (4.4 in) of precipitation may occur over 15 days. The average humidity sits at a comfortable 73%, ensuring a tropical feel throughout the month.

September Temperature in Lontar

In September in Lontar, the average temperature is 27°C (81°F). Maximums can reach 29°C (84°F), while minimums can drop to 25°C (77°F). This mild and pleasant weather makes Lontar an ideal destination for travelers seeking warmth and comfort.

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

The chart illustrates September temperature patterns in Lontar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lontar, September typically has an average temperature of 27°C (81°F), with highs reaching up to 29°C (84°F) and lows dropping to around 25°C (77°F).

Data source: Temperature data for Lontar generated using information from the Copernicus Climate Change Service.

September Precipitation in Lontar

In Lontar in September, the total precipitation amount is 111 mm (4.4 in) spread over 15 days.

September Precipitation Trends in Lontar

The chart displays monthly precipitation patterns in Lontar, 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 Lontar, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Lontar

In Lontar in September, humidity is 73%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel sticky and heavy, while also requiring frequent hydration breaks to stay comfortable during your travels.

September Average Humidity in Lontar

This chart illustrates the average monthly humidity levels in Lontar, 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 Lontar is approximately 73%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lontar

In Lontar 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 Lontar, you can check here.

Maximum UV Index Levels in Lontar for September

The chart shows the monthly maximum UV Index (UVI) for Lontar 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 Lontar typically reaches 14, which falls under the extreme exposure category.

Data source: Lontar 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 Lontar Compares to Other Months

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

This table compares monthly weather conditions in Lontar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	239 mm (9.4 inches)	79%	extreme
February Weather	27°C (81°F)	240 mm (9.5 inches)	81%	extreme
March Weather	27°C (81°F)	247 mm (9.7 inches)	81%	extreme
April Weather	28°C (82°F)	221 mm (8.7 inches)	79%	extreme
May Weather	28°C (82°F)	222 mm (8.7 inches)	78%	extreme
June Weather	27°C (81°F)	267 mm (10.5 inches)	79%	extreme
July Weather	27°C (81°F)	161 mm (6.3 inches)	80%	extreme
August Weather	27°C (81°F)	93 mm (3.7 inches)	77%	extreme
September Weather	27°C (81°F)	111 mm (4.4 inches)	73%	extreme
October Weather	28°C (82°F)	99 mm (3.9 inches)	75%	extreme
November Weather	28°C (82°F)	217 mm (8.5 inches)	73%	extreme
December Weather	27°C (81°F)	342 mm (13.5 inches)	75%	extreme