September weather forecast
Port Douglas, Australia

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Weather in September

September in Port Douglas offers the perfect springtime weather. With an average rainfall of just 6mm (0.24"), it is the second driest month. Lengthening sunshine hours combined with increasing temperature signals the arrival of warmer days. The rising warmth of the sea adds to the revitalizing beach visits. Winds become less forceful, thus facilitating a peaceful outdoor atmosphere.

Temperature

September's onset records an average high-temperature of a still warm 25.5°C (77.9°F), a near match to August's 24°C (75.2°F). During September, the temperature in Port Douglas, Australia, tends to dip to an average of 20°C (68°F) at night.

Humidity

The months with the lowest humidity in Port Douglas are September and October, with an average relative humidity of 74%.

Rainfall

September is the month with the least rainfall in Port Douglas. Rain falls for 5.5 days and accumulates 6mm (0.24") of precipitation.

Sea temperature

In Port Douglas, in September, the average water temperature is 25°C (77°F).
Note: A water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

In September, the average length of the day is 12h and 1min.
On the first day of September in Port Douglas, sunrise is at 6:24 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 6:15 pm AEST.

Sunshine

In Port Douglas, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Caution! Sand and water reflections can notably increase the UV radiation intensity.
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Frequently asked questions

What are the temperatures in Port Douglas in September?

The average high-temperature and low-temperature in Port Douglas during September are 25.5°C (77.9°F) and 20°C (68°F) respectively. In March, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 33°C (91.4°F).

What are the least humid months in Port Douglas?

September and October, with an average relative humidity of 74%, are the least humid months in Port Douglas.

What is the average humidity in September in Port Douglas?

In September, the average relative humidity in Port Douglas is 74%.

What is the driest month in Port Douglas?

The month with the least rainfall in Port Douglas is September, when the rain falls for 5.5 days and typically collects 6mm (0.24") of precipitation.

How many days does it rain in September in Port Douglas?

In Port Douglas, Australia, during September, the rain falls for 5.5 days and regularly aggregates up to 6mm (0.24") of precipitation.

What is the water temperature in September in Port Douglas?

In Port Douglas, the average seawater temperature in September is 25°C (77°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Port Douglas?

The average day length in September is 12h and 1min.

What time are sunrise and sunset in September in Port Douglas?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 6:11 pm. On the last day of the month, in Port Douglas, sunrise is at 6:01 am and sunset at 6:15 pm AEST.

How many hours of sunshine does Port Douglas have in September?

The average sunshine duration in September in Port Douglas is 9h.

What is the UV index reading in September in Port Douglas?

The average daily maximum UV index in September in Port Douglas is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in September
Port Douglas, Australia

Average temperature in September - Port Douglas, Australia
  • Average high temperature in September: 25.5°C

The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is July (23.2°C).

  • Average low temperature in September: 20°C

The month with the highest average low temperature is February (24.8°C).
The coldest month (with the lowest average low temperature) is August (18.7°C).

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Average pressure in September
Port Douglas, Australia

Average pressure in September - Port Douglas, Australia
  • Average pressure in September: 1015.5mbar

The month with the highest atmospheric pressure is July (1016.4mbar).
The month with the lowest atmospheric pressure is January (1007.4mbar).

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Average wind speed in September
Port Douglas, Australia

Average wind speed in September - Port Douglas, Australia
  • Average wind speed in September: 13.8km/h

The windiest month (with the highest average wind speed) is May (16.7km/h).
The calmest month (with the lowest average wind speed) is February (11.2km/h).

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Average humidity in September
Port Douglas, Australia

Average humidity in September - Port Douglas, Australia
  • Average humidity in September: 74%

The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are September and October (74%).

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Average rainfall in September
Port Douglas, Australia

Average rainfall in September - Port Douglas, Australia
  • Average rainfall in September: 6mm

The wettest month (with the highest rainfall) is January (155mm).
The driest month (with the least rainfall) is September (6mm).

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Average rainfall days in September
Port Douglas, Australia

Average rainfall days in September - Port Douglas, Australia
  • Average rainfall days in September: 5.5 days

The month with the highest number of rainy days is January (19.8 days).
The month with the least rainy days is September (5.5 days).

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Average sea temperature in September
Port Douglas, Australia

Average sea temperature in September - Port Douglas, Australia
  • Average sea temperature in September: 25°C

The best month for swimming (with the highest average sea temperature) is January (29.5°C).
The coldest month (with the lowest average sea temperature) is July (23.7°C).

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Average daylight in September /
Average sunshine in September
Port Douglas, Australia

Average daylight in September / Average sunshine in September - Port Douglas, Australia
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is November (Average sunshine: 10h and 42min).
The months with the least sunshine are May and June (Average sunshine: 5h and 36min).

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Average sunshine days in September
Port Douglas, Australia

Average sunshine days in September - Port Douglas, Australia
  • Average sunshine days in September: 21 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is February (7.2 days).

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Average UV index in September
Port Douglas, Australia

Average UV index in September - Port Douglas, Australia
  • Average UV index in September: 6

The months with the highest UV index are January, February, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

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Average cloud cover in September
Port Douglas, Australia

Average cloud cover in September - Port Douglas, Australia
  • Average cloud cover in September: 30

The months with the most cloud cover are March and May (Cloud cover 46).
The months with the least cloud cover are September and October (Cloud cover 30).

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Average visibility in September
Port Douglas, Australia

Average visibility in September - Port Douglas, Australia
  • 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).

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Port Douglas, Australia

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