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 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
September
Weather in September
Temperature
The arrival of September denotes a barely perceptible change in the average high-temperatures to a still warm 28°C (82.4°F) from August's 27.6°C (81.7°F). Throughout the September nights, Waigani encounters a low-temperature of 22.7°C (72.9°F).Heat index
During September, the heat index is calculated to be a hot 32°C (89.6°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In September, the average relative humidity is 78%.Rainfall
In Waigani, during September, the rain falls for 20 days and regularly aggregates up to 82mm (3.23") of precipitation. In Waigani, during the entire year, the rain falls for 249.8 days and collects up to 1311mm (51.61") of precipitation.Daylight
In Waigani, 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, sunrise is at 05:55 and sunset at 18:06 +10.
Sunshine
In Waigani, the average sunshine in September is 9.3h.UV index
The months with the lowest UV index are February, June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Waigani have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
When is the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Waigani, 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
Waigani, 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
Waigani, 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
Waigani, 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
Waigani, 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
Waigani, 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 daylight in September /
Average sunshine in September
Waigani, 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
Waigani, 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
Waigani, 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
Waigani, 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
Waigani, 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).
