September weather forecast
Waigani, Papua New Guinea

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Weather in September

September weather in Waigani witnesses a gradual rebound in temperature. The slight rise in warmth is met with a simultaneous increase in rainfall. Although the winds soften, they remain consistent enough to keep the climate comfortable. Thanks to fewer clouds, the visibility remains excellent throughout the city. Interestingly, September also begins the phase of increased daylight hours, a trend that continues in the following months.

Temperature

The arrival of September in Waigani brings an average high-temperature of a still moderately hot 28°C (82.4°F), closely following the temperature pattern of August. September brings with it a nighttime average temperature of 22.7°C (72.9°F) in Waigani.

Heat index

During September, the heat index is estimated at a tropical 32°C (89.6°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In Waigani, the average relative humidity in September 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

The average length of the day in September in Waigani is 12h and 3min.
On the first day of September in Waigani, sunrise is at 06:13 and sunset at 18:09. On the last day of the month, sunrise is at 05:55 and sunset at 18:06 +10.

Sunshine

The average sunshine in September in Waigani 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

How hot is September in Waigani?

In Waigani, 28°C (82.4°F) is the average high-temperature and 22.7°C (72.9°F) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 32°C (89.6°F).

What is the average humidity in September in Waigani?

The average relative humidity in September is 78%.

How much does it rain in Waigani in September?

In September, in Waigani, the rain falls for 20 days. Throughout September, 82mm (3.23") of precipitation is accumulated.

How many hours of daylight does Waigani have in September?

The average day length in September in Waigani is 12h and 3min.

What time are sunrise and sunset in September in Waigani?

In September, on the first day of the month, sunrise is at 06:13 and sunset at 18:09. On the last day of the month, in Waigani, Papua New Guinea, sunrise is at 05:55 and sunset at 18:06 +10.

How long on average sun shines in September in Waigani?

In September, the average sunshine duration is 9.3h.

When is the lowest UV index in Waigani?

The months with the lowest UV index are February, June through September, with an average maximum UV index of 6.

How high is the UV index in September in Waigani?

In September, the average daily maximum UV index in Waigani is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.

Average temperature in September
Waigani, Papua New Guinea

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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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).

Waigani, Papua New Guinea

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