September Weather in Janaka, Indonesia

Last updated: August 23, 2025

In Janaka, Indonesia, the average temperature in September hovers around 26°C (80°F), making it pleasantly warm. Temperatures can dip to a minimum of 21°C (70°F) and soar to a maximum of 33°C (92°F). Expect about 90 mm (3.5 in) of precipitation spread over 15 days, contributing to a 77% average humidity that enhances the tropical vibe.

September Temperature in Janaka

In September in Janaka, the average temperature is 26°C (80°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 21°C (70°F). This mild and warm climate makes Janaka an ideal destination for travelers seeking pleasant weather during this time.

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

The chart illustrates September temperature patterns in Janaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Janaka, September typically has an average temperature of 26°C (80°F), with highs reaching up to 33°C (92°F) and lows dropping to around 21°C (70°F).

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

September Precipitation in Janaka

In Janaka in September, the total precipitation amount is 90 mm (3.5 in), which occurs over a span of 15 days.

September Precipitation Trends in Janaka

The chart displays monthly precipitation patterns in Janaka, 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 Janaka, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 15 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 Janaka

In Janaka in September, humidity is 77%. With an average temperature of 26°C (80°F), this humidity feels like walking through a warm, damp blanket, making traveling somewhat uncomfortable and necessitating frequent breaks to stay hydrated and cool.

September Average Humidity in Janaka

This chart illustrates the average monthly humidity levels in Janaka, 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 Janaka is approximately 77%, 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 Janaka

In Janaka in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Janaka.

Maximum UV Index Levels in Janaka for September

The chart shows the monthly maximum UV Index (UVI) for Janaka 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 Janaka typically reaches 13, which falls under the extreme exposure category.

Data source: Janaka 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 Janaka Compares to Other Months

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

This table compares monthly weather conditions in Janaka, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	278 mm (10.9 inches)	84%	extreme
February Weather	26°C (79°F)	270 mm (10.6 inches)	86%	extreme
March Weather	26°C (80°F)	273 mm (10.8 inches)	84%	extreme
April Weather	27°C (80°F)	283 mm (11.1 inches)	81%	extreme
May Weather	27°C (81°F)	181 mm (7.1 inches)	80%	extreme
June Weather	27°C (80°F)	112 mm (4.4 inches)	80%	extreme
July Weather	26°C (79°F)	58 mm (2.3 inches)	79%	extreme
August Weather	26°C (79°F)	55 mm (2.2 inches)	77%	extreme
September Weather	26°C (80°F)	90 mm (3.5 inches)	77%	extreme
October Weather	27°C (80°F)	167 mm (6.6 inches)	78%	extreme
November Weather	26°C (80°F)	246 mm (9.7 inches)	80%	extreme
December Weather	26°C (79°F)	328 mm (12.9 inches)	79%	extreme