September Weather in Vanimo, Papua New Guinea

Last updated: August 31, 2025

In September, the average temperature in Vanimo, Papua New Guinea hovers around 27°C (81°F), with a comfortable minimum of 23°C (74°F) and a warm maximum of 32°C (90°F). Be prepared for some wet days, as precipitation amounts typically reach 226 mm (8.9 in) over about 26 days. With an average humidity of 86%, it’s a good idea to stay hydrated and cool!

September Temperature in Vanimo

In September in Vanimo, the average temperature is 27°C (81°F). Maximums can reach 32°C (90°F) and minimums can be as low as 23°C (74°F). This pleasant climate makes Vanimo a great destination for travelers looking to enjoy warm and comfortable weather.

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

The chart illustrates September temperature patterns in Vanimo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vanimo, September typically has an average temperature of 27°C (81°F), with highs reaching up to 32°C (90°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Vanimo

In Vanimo in September, the total precipitation amount is 226 mm (8.9 in) over the course of 26 days.

September Precipitation Trends in Vanimo

The chart displays monthly precipitation patterns in Vanimo, 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 Vanimo, September typically receives around 226 mm (8.9 inches) of precipitation spread over approximately 26 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 Vanimo

In Vanimo in September, humidity is 86%. With an average temperature of 27°C (81°F), this humidity feels like walking through a steamy blanket, making traveling feel heavy and exhausting as each step absorbs the warm, moist air.

September Average Humidity in Vanimo

This chart illustrates the average monthly humidity levels in Vanimo, 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 Vanimo is approximately 86%, 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 Vanimo

In Vanimo 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 Vanimo.

Maximum UV Index Levels in Vanimo for September

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

Data source: Vanimo 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 Vanimo Compares to Other Months

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

This table compares monthly weather conditions in Vanimo, 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 (81°F)	239 mm (9.4 inches)	84%	extreme
February Weather	27°C (81°F)	352 mm (13.9 inches)	84%	extreme
March Weather	27°C (81°F)	408 mm (16.1 inches)	83%	extreme
April Weather	27°C (81°F)	363 mm (14.3 inches)	85%	extreme
May Weather	27°C (82°F)	260 mm (10.2 inches)	84%	extreme
June Weather	27°C (81°F)	249 mm (9.8 inches)	85%	extreme
July Weather	27°C (80°F)	292 mm (11.5 inches)	85%	extreme
August Weather	27°C (81°F)	239 mm (9.4 inches)	86%	extreme
September Weather	27°C (81°F)	226 mm (8.9 inches)	86%	extreme
October Weather	27°C (82°F)	270 mm (10.6 inches)	85%	extreme
November Weather	27°C (81°F)	364 mm (14.3 inches)	85%	extreme
December Weather	27°C (82°F)	379 mm (14.9 inches)	84%	extreme