September weather forecast
Subiaco, Australia

September

Weather in September

September, the first month of the spring in Subiaco, is still a comfortable month, with an average temperature ranging between max 18.5°C (65.3°F) and min 11.5°C (52.7°F).

Temperature

Subiaco, Australia, commences September with an average high-temperature of a still comfortable 18.5°C (65.3°F), maintaining a close resemblance to the previous month. The low-temperature in Subiaco averages to a cool 11.5°C (52.7°F) during the nights of September.

Humidity

In Subiaco, the average relative humidity in September is 70%.

Rainfall

In Subiaco, during September, the rain falls for 13.5 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 116.7 rainfall days, and 389mm (15.31") of precipitation is accumulated.

Daylight

In September, the average length of the day in Subiaco is 11h and 54min.
On the first day of the month, sunrise is at 6:32 am and sunset at 6:00 pm. On the last day of September, sunrise is at 5:55 am and sunset at 6:18 pm AWST.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September in Subiaco is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What is the usual temperature for Subiaco in September?
The high-temperature in Subiaco, Australia, during September is 18.5°C (65.3°F) and the low-temperature is 11.5°C (52.7°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in February is calculated to be 30°C (86°F).
What is the average humidity in September in Subiaco?
In September, the average relative humidity in Subiaco, Australia, is 70%.
How much does it rain in Subiaco in September?
In September, the rain falls for 13.5 days. Throughout September, 35mm (1.38") of precipitation is accumulated.
How many hours of daylight does Subiaco have in September?
The average day length in September in Subiaco, Australia, is 11h and 54min.
What time are sunrise and sunset in September in Subiaco?
On the first day of September in Subiaco, Australia, sunrise is at 6:32 am and sunset at 6:00 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 6:18 pm AWST.
How many hours of sunshine does Subiaco have in September?
In Subiaco, Australia, the average sunshine duration in September is 8.3h.
What is the UV index reading in September in Subiaco?
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Subiaco, Australia
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is February (28.7°C).
The month with the lowest average high temperature is July (17.2°C).

  • Average low temperature in September: 11.5°C

The month with the highest average low temperature is February (19.7°C).
The coldest month (with the lowest average low temperature) is August (11.3°C).

Average pressure in September
Subiaco, Australia
  • Average pressure in September: 1019.1mbar

The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1011.3mbar).

Average wind speed in September
Subiaco, Australia
  • Average wind speed in September: 16.1km/h

The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is April (14.6km/h).

Average humidity in September
Subiaco, Australia
  • Average humidity in September: 70%

The month with the highest relative humidity is August (73%).
The months with the lowest relative humidity are January, February and December (57%).

Average rainfall in September
Subiaco, Australia
  • Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is June (71mm).
The driest month (with the least rainfall) is March (10mm).

Average rainfall days in September
Subiaco, Australia
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (4.8 days).

Average daylight in September /
Average sunshine in September
Subiaco, Australia
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are January and December (Average sunshine: 11h and 36min).
The months with the least sunshine are July and August (Average sunshine: 5h and 54min).

Average sunshine days in September
Subiaco, Australia
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is December (24.4 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September
Subiaco, Australia
  • Average UV index in September: 5

The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 4).

Average cloud cover in September
Subiaco, Australia
  • Average cloud cover in September: 31

The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 13).

Average visibility in September
Subiaco, 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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