September Weather in Koba, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Koba, Indonesia hovers around 27°C (81°F), with minimums dipping to 24°C (76°F) and peaks soaring up to 31°C (87°F). Expect a good amount of moisture; total precipitation reaches 131 mm (5.1 in) over approximately 16 days, leading to an average humidity of 81%. Prepare for a tropical experience!

September Temperature in Koba

In September in Koba, the average temperature is 27°C (81°F), with maximums reaching 31°C (87°F) and minimums dropping to 24°C (76°F). This pleasant weather makes it an ideal destination for travelers seeking warmth and sunshine.

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

The chart illustrates September temperature patterns in Koba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koba, September typically has an average temperature of 27°C (81°F), with highs reaching up to 31°C (87°F) and lows dropping to around 24°C (76°F).

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

September Precipitation in Koba

In Koba in September, the total precipitation amount is 131 mm (5.1 in) over a span of 16 days.

September Precipitation Trends in Koba

The chart displays monthly precipitation patterns in Koba, 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 Koba, September typically receives around 131 mm (5.1 inches) of precipitation spread over approximately 16 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 Koba

In Koba in September humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

September Average Humidity in Koba

This chart illustrates the average monthly humidity levels in Koba, 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 Koba is approximately 81%, 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 Koba

In Koba 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 Koba, you can check here.

Maximum UV Index Levels in Koba for September

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

Data source: Koba 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 Koba Compares to Other Months

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

This table compares monthly weather conditions in Koba, 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 (80°F)	223 mm (8.8 inches)	87%	extreme
February Weather	27°C (80°F)	213 mm (8.4 inches)	88%	extreme
March Weather	27°C (81°F)	253 mm (10.0 inches)	86%	extreme
April Weather	27°C (82°F)	263 mm (10.4 inches)	85%	extreme
May Weather	28°C (82°F)	272 mm (10.7 inches)	83%	extreme
June Weather	28°C (82°F)	210 mm (8.3 inches)	83%	extreme
July Weather	27°C (81°F)	178 mm (7.0 inches)	85%	extreme
August Weather	27°C (82°F)	107 mm (4.2 inches)	85%	extreme
September Weather	27°C (81°F)	131 mm (5.1 inches)	81%	extreme
October Weather	27°C (82°F)	172 mm (6.8 inches)	82%	extreme
November Weather	27°C (81°F)	291 mm (11.4 inches)	83%	extreme
December Weather	27°C (81°F)	350 mm (13.8 inches)	85%	extreme