September Weather in Ewa, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Ewa, Indonesia is a warm 26°C (80°F), with minimums dipping to 22°C (72°F) and maximums reaching up to 30°C (86°F). Expect 16 mm (0.6 in) of precipitation spread over 4 days, contributing to an average humidity of 70%. Whether you're planning outdoor activities or cozy indoor pursuits, this climate creates a balanced environment for all!

September Temperature in Ewa

In September in Ewa, the average temperature is 26°C (80°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 22°C (72°F). This pleasant climate makes Ewa an ideal destination for travelers looking to enjoy warm and comfortable weather.

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

The chart illustrates September temperature patterns in Ewa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ewa, September typically has an average temperature of 26°C (80°F), with highs reaching up to 30°C (86°F) and lows dropping to around 22°C (72°F).

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

September Precipitation in Ewa

In Ewa in September, the precipitation amount is 16 mm (0.6 in) over a span of 4 days.

September Precipitation Trends in Ewa

The chart displays monthly precipitation patterns in Ewa, 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 Ewa, September typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 4 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 Ewa

In Ewa in September, humidity is 70%. With an average temperature of 26°C (80°F), this humidity feels like a warm, sticky blanket enveloping you, making travel feel laborious and prompting frequent breaks in shaded spots or air-conditioned spaces to stay comfortable.

September Average Humidity in Ewa

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

In Ewa 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 Ewa.

Maximum UV Index Levels in Ewa for September

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

Data source: Ewa 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 Ewa Compares to Other Months

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

This table compares monthly weather conditions in Ewa, 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)	261 mm (10.3 inches)	78%	extreme
February Weather	26°C (80°F)	252 mm (9.9 inches)	84%	extreme
March Weather	27°C (80°F)	257 mm (10.1 inches)	84%	extreme
April Weather	27°C (81°F)	123 mm (4.8 inches)	82%	extreme
May Weather	27°C (81°F)	50 mm (2.0 inches)	83%	extreme
June Weather	26°C (80°F)	20 mm (0.8 inches)	79%	extreme
July Weather	26°C (79°F)	10 mm (0.4 inches)	74%	extreme
August Weather	26°C (79°F)	11 mm (0.4 inches)	71%	extreme
September Weather	26°C (80°F)	16 mm (0.6 inches)	70%	extreme
October Weather	27°C (81°F)	36 mm (1.4 inches)	69%	extreme
November Weather	27°C (82°F)	144 mm (5.7 inches)	70%	extreme
December Weather	27°C (81°F)	257 mm (10.1 inches)	72%	extreme