September Weather in Kapuan, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Kapuan, Indonesia is a warm 28°C (83°F). Expect a minimum of 20°C (69°F) and a maximum that can reach up to 37°C (99°F). With an average humidity of 70%, you might feel a bit sticky. Be prepared for some rain, too, as 33 mm (1.3 in) of precipitation can be expected over the course of 4 days.

September Temperature in Kapuan

In September in Kapuan, the average temperature is 28°C (83°F). The maximum can reach 37°C (99°F), while the minimum can drop to as low as 20°C (69°F). It's a great time to explore outdoor activities while enjoying warm weather and pleasant evenings.

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

The chart illustrates September temperature patterns in Kapuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kapuan, September typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 20°C (69°F).

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

September Precipitation in Kapuan

In Kapuan in September, the precipitation amount is 33 mm (1.3 in) over a span of 4 days.

September Precipitation Trends in Kapuan

The chart displays monthly precipitation patterns in Kapuan, 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 Kapuan, September typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 4 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 Kapuan

In Kapuan in September humidity is 70%. With an average temperature of 28°C (83°F), this humidity feels like an enveloping blanket, making outdoor activities sticky and draining, requiring frequent breaks to hydrate and seek shade.

September Average Humidity in Kapuan

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

In Kapuan 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 Kapuan, you can check here.

Maximum UV Index Levels in Kapuan for September

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

Data source: Kapuan 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 Kapuan Compares to Other Months

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

This table compares monthly weather conditions in Kapuan, 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)	300 mm (11.8 inches)	82%	extreme
February Weather	27°C (80°F)	365 mm (14.4 inches)	86%	extreme
March Weather	27°C (81°F)	344 mm (13.6 inches)	84%	extreme
April Weather	28°C (82°F)	241 mm (9.5 inches)	80%	extreme
May Weather	28°C (82°F)	88 mm (3.5 inches)	81%	extreme
June Weather	28°C (82°F)	73 mm (2.9 inches)	81%	very high
July Weather	27°C (82°F)	13 mm (0.5 inches)	78%	extreme
August Weather	28°C (82°F)	9 mm (0.3 inches)	74%	extreme
September Weather	28°C (83°F)	33 mm (1.3 inches)	70%	extreme
October Weather	29°C (84°F)	91 mm (3.6 inches)	72%	extreme
November Weather	28°C (83°F)	289 mm (11.4 inches)	73%	extreme
December Weather	27°C (81°F)	324 mm (12.8 inches)	75%	extreme