Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the onset of September, the average high-temperature registers at a still warm 28°C (82.4°F), subtly different from August's 27.6°C (81.7°F). Port Moresby reports an average low-temperature of 22.7°C (72.9°F) during the nights of September.Heat index
For September, the heat index is appraised at a hot 32°C (89.6°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In Port Moresby, the average relative humidity in September is 78%.Rainfall
In Port Moresby, during September, the rain falls for 20 days and regularly aggregates up to 82mm (3.23") of precipitation. In Port Moresby, during the entire year, the rain falls for 249.8 days and collects up to 1311mm (51.61") of precipitation.Sea temperature
In Port Moresby, in September, the average water temperature is 25.9°C (78.6°F).Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.
Daylight
In Port Moresby, the average length of the day in September is 12h and 3min.On the first day of the month, sunrise is at 06:13 and sunset at 18:09. On the last day of September, in Port Moresby, sunrise is at 05:55 and sunset at 18:06 +10.
Sunshine
In Port Moresby, the average sunshine in September is 9.3h.UV index
February, June through September, with an average maximum UV index of 6, are months with the lowest UV index in Port Moresby. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 6 translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Enhance your sun protection with tightly woven, yet airy clothing. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Port Moresby during September?
What is the average humidity in September in Port Moresby?
How many days does it rain in September in Port Moresby?
What is the sea water temperature in September in Port Moresby?
How many hours of daylight does Port Moresby have in September?
What time are sunrise and sunset in September in Port Moresby?
How long on average sun shines in September in Port Moresby?
What are the months with the lowest UV index in Port Moresby?
What is the UV index intensity in September in Port Moresby?
Average temperature in September
Port Moresby, Papua New Guinea
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is December (30.2°C).
The months with the lowest average high temperature are July and August (27.6°C).
- Average low temperature in September: 22.7°C
The month with the highest average low temperature is December (24.5°C).
The coldest month (with the lowest average low temperature) is August (22.5°C).
Average pressure in September
Port Moresby, Papua New Guinea
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is August (1012.1mbar).
The month with the lowest atmospheric pressure is January (1007.9mbar).
Average wind speed in September
Port Moresby, Papua New Guinea
- Average wind speed in September: 17.2km/h
The windiest month (with the highest average wind speed) is July (18.9km/h).
The calmest month (with the lowest average wind speed) is December (9.7km/h).
Average humidity in September
Port Moresby, Papua New Guinea
- Average humidity in September: 78%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January and February (73%).
Average rainfall in September
Port Moresby, Papua New Guinea
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is March (203mm).
The driest month (with the least rainfall) is July (46mm).
Average rainfall days in September
Port Moresby, Papua New Guinea
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is March (24.6 days).
The month with the least rainy days is July (14.7 days).
Average sea temperature in September
Port Moresby, Papua New Guinea
- Average sea temperature in September: 25.9°C
The best month for swimming (with the highest average sea temperature) is January (29.7°C).
The coldest month (with the lowest average sea temperature) is August (25.6°C).
Average daylight in September /
Average sunshine in September
Port Moresby, Papua New Guinea
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is November (Average sunshine: 11h and 18min).
The month with the least sunshine is May (Average sunshine: 7h and 6min).
Average sunshine days in September
Port Moresby, Papua New Guinea
- Average sunshine days in September: 7.9 days
The month with the most sunshine days is July (13.4 days).
The months with the least sunshine days are March and April (5.2 days).
Average UV index in September
Port Moresby, Papua New Guinea
- Average UV index in September: 6
The months with the highest UV index are January, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are February, June, July, August and September (UV index 6).
Average cloud cover in September
Port Moresby, Papua New Guinea
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is November (Cloud cover 28).
Average visibility in September
Port Moresby, Papua New Guinea
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Port Moresby, Papua New Guinea
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