September Weather in Atambua, Indonesia

Last updated: August 23, 2025

In Atambua, Indonesia, the average temperature in September hovers around 25°C (78°F), creating a pleasant climate for outdoor activities. Expect a comfortable range with minimums of 19°C (66°F) and maximums reaching 30°C (87°F). With an average humidity of 69% and precipitation at about 8 mm (0.3 in) over just 2 days, you might encounter a brief shower, but overall, it’s a great time to explore!

September Temperature in Atambua

In September in Atambua, the average temperature is 25°C (78°F). The maximum can reach 30°C (87°F), and the minimum can be as low as 19°C (66°F). This mild and pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Atambua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Atambua, September typically has an average temperature of 25°C (78°F), with highs reaching up to 30°C (87°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Atambua

In Atambua in September, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

September Precipitation Trends in Atambua

The chart displays monthly precipitation patterns in Atambua, 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 Atambua, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 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 Atambua

In Atambua in September humidity is 69%. With an average temperature of 25°C (78°F), this humidity feels like a warm and tropical embrace, making traveling a bit sticky but also invigorating as each breath carries a hint of the surrounding environment, perfect for those who enjoy a lively and immersive journey.

September Average Humidity in Atambua

This chart illustrates the average monthly humidity levels in Atambua, 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 Atambua is approximately 69%, 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 Atambua

In Atambua in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Atambua.

Maximum UV Index Levels in Atambua for September

The chart shows the monthly maximum UV Index (UVI) for Atambua 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 Atambua typically reaches 16, which falls under the extreme exposure category.

Data source: Atambua 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 Atambua Compares to Other Months

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

This table compares monthly weather conditions in Atambua, 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 (78°F)	291 mm (11.4 inches)	78%	extreme
February Weather	26°C (78°F)	284 mm (11.2 inches)	84%	extreme
March Weather	26°C (78°F)	258 mm (10.2 inches)	84%	extreme
April Weather	26°C (79°F)	88 mm (3.5 inches)	83%	extreme
May Weather	26°C (79°F)	37 mm (1.4 inches)	84%	extreme
June Weather	25°C (77°F)	19 mm (0.8 inches)	80%	very high
July Weather	24°C (76°F)	15 mm (0.6 inches)	75%	extreme
August Weather	25°C (77°F)	7 mm (0.3 inches)	72%	extreme
September Weather	25°C (78°F)	8 mm (0.3 inches)	69%	extreme
October Weather	27°C (80°F)	15 mm (0.6 inches)	69%	extreme
November Weather	27°C (81°F)	98 mm (3.8 inches)	69%	extreme
December Weather	26°C (80°F)	267 mm (10.5 inches)	72%	extreme