September Weather in Jawa, Indonesia

Last updated: August 23, 2025

In Jawa, Indonesia, the average temperature in September hovers around 24°C (75°F). You can expect temperatures to range from a comfortable 16°C (61°F) to a warm 30°C (86°F). During this month, the area typically experiences 44 mm (1.7 in) of precipitation spread across 8 days, resulting in an average humidity of 70%. Enjoy the perfect blend of warmth and refreshing rain!

September Temperature in Jawa

In September in Jawa, the average temperature is 24°C (75°F). Maximums can reach 30°C (86°F), and minimums can be as low as 16°C (61°F). This comfortable climate makes Jawa an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Jawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jawa, September typically has an average temperature of 24°C (75°F), with highs reaching up to 30°C (86°F) and lows dropping to around 16°C (61°F).

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

September Precipitation in Jawa

In Jawa in September, the total precipitation amount is 44 mm (1.7 in) over a duration of 8 days.

September Precipitation Trends in Jawa

The chart displays monthly precipitation patterns in Jawa, 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 Jawa, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 8 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 Jawa

In Jawa in September, humidity is 70%. With an average temperature of 24°C (75°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit sluggish and sticky, ideal for leisurely strolls but requiring plenty of hydration.

September Average Humidity in Jawa

This chart illustrates the average monthly humidity levels in Jawa, 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 Jawa is approximately 70%, 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 Jawa

In Jawa 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 Jawa.

Maximum UV Index Levels in Jawa for September

The chart shows the monthly maximum UV Index (UVI) for Jawa 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 Jawa typically reaches 16, which falls under the extreme exposure category.

Data source: Jawa 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 Jawa Compares to Other Months

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

This table compares monthly weather conditions in Jawa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	321 mm (12.6 inches)	78%	extreme
February Weather	23°C (74°F)	349 mm (13.8 inches)	84%	extreme
March Weather	24°C (75°F)	394 mm (15.5 inches)	84%	extreme
April Weather	24°C (75°F)	225 mm (8.9 inches)	82%	extreme
May Weather	24°C (75°F)	96 mm (3.8 inches)	83%	extreme
June Weather	23°C (74°F)	52 mm (2.1 inches)	79%	extreme
July Weather	23°C (73°F)	22 mm (0.9 inches)	74%	extreme
August Weather	23°C (74°F)	18 mm (0.7 inches)	71%	extreme
September Weather	24°C (75°F)	44 mm (1.7 inches)	70%	extreme
October Weather	24°C (76°F)	91 mm (3.6 inches)	69%	extreme
November Weather	24°C (76°F)	282 mm (11.1 inches)	70%	extreme
December Weather	24°C (76°F)	359 mm (14.1 inches)	72%	extreme