September Weather in Pekalongan, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Pekalongan, Indonesia hovers around 25°C (78°F), offering a pleasant climate for visitors. Expect a minimum of 20°C (68°F) and a maximum of 31°C (88°F), perfect for outdoor activities. However, be prepared for 108 mm (4.3 in) of precipitation spread over 17 days, which brings the average humidity to 72%. Plan accordingly to make the most of your time in this vibrant destination!

September Temperature in Pekalongan

In September in Pekalongan, the average temperature is 25°C (78°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 20°C (68°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Pekalongan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pekalongan, September typically has an average temperature of 25°C (78°F), with highs reaching up to 31°C (88°F) and lows dropping to around 20°C (68°F).

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

September Precipitation in Pekalongan

In Pekalongan in September, the total precipitation amount is 108 mm (4.3 in) over the course of 17 days.

September Precipitation Trends in Pekalongan

The chart displays monthly precipitation patterns in Pekalongan, 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 Pekalongan, September typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Pekalongan

In Pekalongan in September humidity is 72%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket wrapping around you, making it essential to stay hydrated and take breaks in the shade while exploring.

September Average Humidity in Pekalongan

This chart illustrates the average monthly humidity levels in Pekalongan, 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 Pekalongan is approximately 72%, 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 Pekalongan

In Pekalongan 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 Pekalongan, you can check here.

Maximum UV Index Levels in Pekalongan for September

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

Data source: Pekalongan 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 Pekalongan Compares to Other Months

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

This table compares monthly weather conditions in Pekalongan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	360 mm (14.2 inches)	84%	extreme
February Weather	25°C (77°F)	416 mm (16.4 inches)	87%	extreme
March Weather	25°C (78°F)	452 mm (17.8 inches)	85%	extreme
April Weather	26°C (79°F)	373 mm (14.7 inches)	82%	extreme
May Weather	26°C (79°F)	207 mm (8.2 inches)	81%	extreme
June Weather	25°C (78°F)	177 mm (7.0 inches)	81%	extreme
July Weather	25°C (77°F)	54 mm (2.1 inches)	79%	extreme
August Weather	25°C (77°F)	50 mm (2.0 inches)	76%	extreme
September Weather	25°C (78°F)	108 mm (4.3 inches)	72%	extreme
October Weather	26°C (78°F)	237 mm (9.3 inches)	74%	extreme
November Weather	25°C (78°F)	465 mm (18.3 inches)	78%	extreme
December Weather	25°C (78°F)	469 mm (18.5 inches)	78%	extreme