September Weather in Boyolali, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Boyolali, Indonesia hovers around 23°C (75°F), with a comfortable range from a minimum of 16°C (61°F) to a maximum of 31°C (89°F). Expect a gentle precipitation amount of 83 mm (3.3 in) over 11 days, contributing to an average humidity of 70% that adds a touch of freshness to the atmosphere.

September Temperature in Boyolali

In September in Boyolali, the average temperature is 23°C (75°F). Maximums can reach 31°C (89°F), while minimums can dip to as low as 16°C (61°F). This pleasant climate makes it an ideal time for outdoor adventures and sightseeing.

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

The chart illustrates September temperature patterns in Boyolali, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boyolali, September typically has an average temperature of 23°C (75°F), with highs reaching up to 31°C (89°F) and lows dropping to around 16°C (61°F).

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

September Precipitation in Boyolali

In Boyolali in September, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.

September Precipitation Trends in Boyolali

The chart displays monthly precipitation patterns in Boyolali, 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 Boyolali, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 11 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 Boyolali

In Boyolali in September humidity is 70%. With an average temperature of 23°C (75°F), this humidity feels like walking through a warm, thick blanket, making outdoor activities a bit more strenuous and prompting travelers to stay hydrated while exploring the vibrant surroundings.

September Average Humidity in Boyolali

This chart illustrates the average monthly humidity levels in Boyolali, 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 Boyolali 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 Boyolali

In Boyolali in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Boyolali.

Maximum UV Index Levels in Boyolali for September

The chart shows the monthly maximum UV Index (UVI) for Boyolali 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 Boyolali typically reaches 15, which falls under the extreme exposure category.

Data source: Boyolali 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 Boyolali Compares to Other Months

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

This table compares monthly weather conditions in Boyolali, 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 (76°F)	403 mm (15.9 inches)	82%	extreme
February Weather	24°C (75°F)	486 mm (19.1 inches)	86%	extreme
March Weather	24°C (76°F)	399 mm (15.7 inches)	84%	extreme
April Weather	25°C (77°F)	306 mm (12.0 inches)	80%	extreme
May Weather	25°C (77°F)	132 mm (5.2 inches)	81%	extreme
June Weather	24°C (75°F)	105 mm (4.1 inches)	81%	very high
July Weather	23°C (74°F)	32 mm (1.3 inches)	78%	extreme
August Weather	23°C (74°F)	23 mm (0.9 inches)	74%	extreme
September Weather	23°C (75°F)	83 mm (3.3 inches)	70%	extreme
October Weather	24°C (76°F)	168 mm (6.6 inches)	72%	extreme
November Weather	24°C (76°F)	384 mm (15.1 inches)	73%	extreme
December Weather	24°C (76°F)	399 mm (15.7 inches)	75%	extreme