nomadseason

September Weather in Lae, Papua New Guinea

Last updated: August 31, 2025

In Lae, Papua New Guinea, the average temperature in September hovers around 24°C (75°F), making it a pleasantly warm destination. Expect temperatures to range from a minimum of 20°C (68°F) to a maximum of 28°C (83°F). However, be prepared for some soggy days, as the region experiences an average precipitation of 719 mm (28.3 in) spread over 28 days, accompanied by a humidity level of 85%.

September Temperature in Lae

In September in Lae, the average temperature is 24°C (75°F). Maximums can reach 28°C (83°F), and minimums can be as low as 20°C (68°F). This mild climate makes Lae an ideal destination for outdoor activities and sightseeing during this time of year.

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

The chart illustrates September temperature patterns in Lae, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lae, September typically has an average temperature of 24°C (75°F), with highs reaching up to 28°C (83°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec797978777776757575767778
Data source: Temperature data for Lae generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Lae

In Lae in September, the precipitation amount is 719 mm (28.3 in) distributed over a span of 28 days.

September Precipitation Trends in Lae

The chart displays monthly precipitation patterns in Lae, 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 Lae, September typically receives around 719 mm (28.3 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec551411814838792816563654719583709873
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Lae

In Lae in September humidity is 85%. With an average temperature of 24°C (75°F), this humidity feels like walking through a warm, heavy blanket, making travel feel sluggish and draining as you navigate through the thick, muggy air.

September Average Humidity in Lae

This chart illustrates the average monthly humidity levels in Lae, 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 Lae is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%91%91%91%89%85%87%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lae

In Lae 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 Lae.

Maximum UV Index Levels in Lae for September

The chart shows the monthly maximum UV Index (UVI) for Lae 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 Lae typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151717161311121415151514
Data source: Lae 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 Lae Compares to Other Months

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

This table compares monthly weather conditions in Lae, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)551 mm (21.7 inches)89%extreme
February Weather26°C (79°F)411 mm (16.2 inches)90%extreme
March Weather26°C (78°F)814 mm (32.0 inches)90%extreme
April Weather25°C (78°F)838 mm (33.0 inches)90%extreme
May Weather25°C (77°F)792 mm (31.2 inches)91%extreme
June Weather24°C (76°F)816 mm (32.1 inches)91%extreme
July Weather24°C (76°F)563 mm (22.1 inches)91%extreme
August Weather24°C (75°F)654 mm (25.7 inches)89%extreme
September Weather24°C (75°F)719 mm (28.3 inches)85%extreme
October Weather25°C (77°F)583 mm (22.9 inches)86%extreme
November Weather25°C (77°F)709 mm (27.9 inches)89%extreme
December Weather26°C (79°F)873 mm (34.4 inches)90%extreme

Compare Lae's Climate with Cities Worldwide