September Weather in Ialibu, Papua New Guinea

Last updated: August 31, 2025

In Ialibu, Papua New Guinea, the average temperature in September hovers around 16°C (61°F). However, expect a range where the minimum can drop to 9°C (49°F) and the maximum can reach up to 24°C (75°F). Be prepared for significant precipitation, with an average of 476 mm (18.7 in) spread across 29 days, and a high humidity level of 84%.

September Temperature in Ialibu

In September in Ialibu, the average temperature is 16°C (61°F). The maximum can reach 24°C (75°F), and the minimum can be as low as 9°C (49°F). This mild climate makes Ialibu an ideal destination for travelers seeking comfortable weather for outdoor activities.

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

The chart illustrates September temperature patterns in Ialibu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ialibu, September typically has an average temperature of 16°C (61°F), with highs reaching up to 24°C (75°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in Ialibu

In Ialibu in September, the precipitation amount is 476 mm (18.7 in) spread over 29 days.

September Precipitation Trends in Ialibu

The chart displays monthly precipitation patterns in Ialibu, 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 Ialibu, September typically receives around 476 mm (18.7 inches) of precipitation spread over approximately 29 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 Ialibu

In Ialibu in September, humidity is 84%. With an average temperature of 16°C (61°F), this humidity feels like a blanket of warmth, making travel slightly sticky but overall comfortable, as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Ialibu

This chart illustrates the average monthly humidity levels in Ialibu, 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 Ialibu is approximately 84%, 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 Ialibu

In Ialibu 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 Ialibu.

Maximum UV Index Levels in Ialibu for September

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

Data source: Ialibu 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 Ialibu Compares to Other Months

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

This table compares monthly weather conditions in Ialibu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	589 mm (23.2 inches)	90%	extreme
February Weather	17°C (62°F)	456 mm (17.9 inches)	90%	extreme
March Weather	17°C (62°F)	674 mm (26.5 inches)	91%	extreme
April Weather	17°C (62°F)	680 mm (26.8 inches)	91%	extreme
May Weather	17°C (62°F)	648 mm (25.5 inches)	91%	extreme
June Weather	16°C (61°F)	419 mm (16.5 inches)	91%	extreme
July Weather	16°C (61°F)	323 mm (12.7 inches)	91%	extreme
August Weather	16°C (61°F)	409 mm (16.1 inches)	88%	extreme
September Weather	16°C (61°F)	476 mm (18.7 inches)	84%	extreme
October Weather	16°C (62°F)	621 mm (24.5 inches)	85%	extreme
November Weather	17°C (62°F)	436 mm (17.2 inches)	89%	extreme
December Weather	17°C (62°F)	508 mm (20.0 inches)	90%	extreme