September Weather in Wau, Papua New Guinea

Last updated: August 31, 2025

In Wau, Papua New Guinea, the average temperature in September hovers around 18°C (64°F), with a comfortable minimum of 13°C (56°F) and a pleasant maximum reaching 25°C (77°F). Expect a generous 407 mm (16.0 in) of precipitation over 28 days, contributing to a notably high average humidity of 85%. Embrace the season's mood with its refreshing air and lush landscapes!

September Temperature in Wau

In September in Wau, the average temperature is 18°C (64°F). Maximums can reach 25°C (77°F) and minimums can drop to as low as 13°C (56°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Wau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wau, September typically has an average temperature of 18°C (64°F), with highs reaching up to 25°C (77°F) and lows dropping to around 13°C (56°F).

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

September Precipitation in Wau

In Wau in September, the precipitation amount is 407 mm (16.0 in) distributed over a span of 28 days.

September Precipitation Trends in Wau

The chart displays monthly precipitation patterns in Wau, 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 Wau, September typically receives around 407 mm (16.0 inches) of precipitation spread over approximately 28 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 Wau

In Wau in September, humidity is 85%. With an average temperature of 18°C (64°F), this humidity feels like a muggy blanket enveloping you, making travel a bit heavy and sticky, as the air clings to your skin and every step can feel like wading through molasses.

September Average Humidity in Wau

This chart illustrates the average monthly humidity levels in Wau, 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 Wau is approximately 85%, 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 Wau

In Wau 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 Wau.

Maximum UV Index Levels in Wau for September

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

Data source: Wau 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 Wau Compares to Other Months

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

This table compares monthly weather conditions in Wau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (67°F)	377 mm (14.9 inches)	89%	extreme
February Weather	20°C (68°F)	332 mm (13.1 inches)	90%	extreme
March Weather	19°C (67°F)	576 mm (22.7 inches)	90%	extreme
April Weather	19°C (66°F)	458 mm (18.0 inches)	90%	extreme
May Weather	19°C (66°F)	307 mm (12.1 inches)	91%	extreme
June Weather	18°C (65°F)	323 mm (12.7 inches)	91%	extreme
July Weather	18°C (64°F)	253 mm (9.9 inches)	91%	extreme
August Weather	18°C (64°F)	326 mm (12.8 inches)	89%	extreme
September Weather	18°C (64°F)	407 mm (16.0 inches)	85%	extreme
October Weather	18°C (65°F)	336 mm (13.2 inches)	86%	extreme
November Weather	19°C (67°F)	336 mm (13.2 inches)	89%	extreme
December Weather	20°C (67°F)	427 mm (16.8 inches)	90%	extreme