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
September
Weather in September
Temperature
The high-temperature average in September for Daru is a still warm 27°C (80.6°F), staying closely aligned with August's conditions. Daru sees a minor drop to an average minimum temperature of 24.4°C (75.9°F) during the night in the month of September.Heat index
The heat index for September is calculated to be a hot 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Remember that heat index calculations are made for conditions in the shade with light wind. 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 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
The average relative humidity in September is 82%.Rainfall
September is the month with the least rainfall. Rain falls for 18.5 days and accumulates 49mm (1.93") of precipitation.Sea temperature
In Daru, the average seawater temperature in September is 26.1°C (79°F).Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.
Daylight
In September, the average length of the day is 12h and 3min.On the first day of September, sunrise is at 06:28 and sunset at 18:25. On the last day of the month, sunrise is at 06:11 and sunset at 18:22 +10.
Sunshine
In Daru, the average sunshine in September is 5.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the UV index of 6 transforms into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
What is the water temperature in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Daru, Papua New Guinea
- Average high temperature in September: 27°C
The warmest months (with the highest average high temperature) are January and February (30.8°C).
The month with the lowest average high temperature is July (26.2°C).
- Average low temperature in September: 24.4°C
The month with the highest average low temperature is December (26.2°C).
The coldest month (with the lowest average low temperature) is August (24°C).
Average pressure in September
Daru, Papua New Guinea
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is August (1011.5mbar).
The month with the lowest atmospheric pressure is January (1006.4mbar).
Average wind speed in September
Daru, Papua New Guinea
- Average wind speed in September: 20.2km/h
The windiest month (with the highest average wind speed) is July (22.4km/h).
The calmest month (with the lowest average wind speed) is March (11km/h).
Average humidity in September
Daru, Papua New Guinea
- Average humidity in September: 82%
The month with the highest relative humidity is June (85%).
The month with the lowest relative humidity is December (76%).
Average rainfall in September
Daru, Papua New Guinea
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is May (240mm).
The driest month (with the least rainfall) is September (49mm).
Average rainfall days in September
Daru, Papua New Guinea
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is March (28 days).
The month with the least rainy days is September (18.5 days).
Average sea temperature in September
Daru, Papua New Guinea
- Average sea temperature in September: 26.1°C
The best month for swimming (with the highest average sea temperature) is January (29.6°C).
The coldest month (with the lowest average sea temperature) is July (25.6°C).
Average daylight in September /
Average sunshine in September
Daru, Papua New Guinea
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 5h and 3min
The month with the most sunshine is November (Average sunshine: 9h and 18min).
The month with the least sunshine is June (Average sunshine: 4h and 42min).
Average sunshine days in September
Daru, Papua New Guinea
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is October (8.7 days).
The month with the least sunshine days is February (2.3 days).
Average UV index in September
Daru, Papua New Guinea
- Average UV index in September: 6
The months with the highest UV index are January, February, April, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Daru, Papua New Guinea
- Average cloud cover in September: 64
The month with the most cloud cover is June (Cloud cover 70).
The month with the least cloud cover is December (Cloud cover 37).
Average visibility in September
Daru, Papua New Guinea
- Average visibility in September: 10km
The months with the highest visibility are February, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, March, April and May (9km).
