September weather forecast
Waterfall, Australia

September

Weather in September

September, the first month of the spring in Waterfall, is an agreeable month, with an average temperature fluctuating between 20.7°C (69.3°F) and 10.2°C (50.4°F).

Temperature

September notes an average high-temperature of an agreeable 20.7°C (69.3°F), subtly differing from August's 17.8°C (64°F). Throughout the month of September, Waterfall observes an average nighttime temperature of 10.2°C (50.4°F).

Humidity

August and September, with an average relative humidity of 67%, are the least humid months.

Rainfall

In Waterfall, in September, it is raining for 8.7 days, with typically 26mm (1.02") of accumulated precipitation. In Waterfall, during the entire year, the rain falls for 137.9 days and collects up to 502mm (19.76") of precipitation.

Daylight

In Waterfall, the average length of the day in September is 11h and 53min.
On the first day of the month, sunrise is at 6:14 am and sunset at 5:37 pm. On the last day of September, sunrise is at 5:33 am and sunset at 5:58 pm AEST.

Sunshine

In Waterfall, the average sunshine in September is 8.7h.

UV index

The months with the lowest UV index in Waterfall are April through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

What are September temperatures in Waterfall?
An average high-temperature, in September, in Waterfall, is 20.7°C (69.3°F) and the average low-temperature is 10.2°C (50.4°F). In February, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 30°C (86°F).
What are the least humid months in Waterfall?
August and September, with an average relative humidity of 67%, are the least humid months in Waterfall, Australia.
What is the average humidity in September in Waterfall?
In Waterfall, Australia, the average relative humidity in September is 67%.
How much does it rain in Waterfall in September?
In Waterfall, Australia, in September, during 8.7 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
What is the average length of the day in September in Waterfall?
In September, the average day length in Waterfall is 11h and 53min.
When are sunrise and sunset in September in Waterfall?
On the first day of September in Waterfall, Australia, sunrise is at 6:14 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 5:58 pm AEST.
How many hours of sunshine does Waterfall have in September?
In September, the average sunshine duration is 8.7h.
What are the months with the lowest UV index in Waterfall?
The months with the lowest UV index in Waterfall, Australia, are April through September, with an average maximum UV index of 4.
What is the UV index reading in September in Waterfall?
In Waterfall, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
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
Waterfall, Australia
  • Average high temperature in September: 20.7°C

The warmest month (with the highest average high temperature) is January (28.7°C).
The months with the lowest average high temperature are June and July (16.3°C).

  • Average low temperature in September: 10.2°C

The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.6°C).

Average pressure in September
Waterfall, Australia
  • Average pressure in September: 1017.1mbar

The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).

Average wind speed in September
Waterfall, Australia
  • Average wind speed in September: 10.2km/h

The windiest months (with the highest average wind speed) are August and September (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.6km/h).

Average humidity in September
Waterfall, Australia
  • Average humidity in September: 67%

The month with the highest relative humidity is June (77%).
The months with the lowest relative humidity are August and September (67%).

Average rainfall in September
Waterfall, Australia
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is February (84mm).
The driest month (with the least rainfall) is May (24mm).

Average rainfall days in September
Waterfall, Australia
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is January (15.4 days).
The month with the least rainy days is August (7.8 days).

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

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).

Average sunshine days in September
Waterfall, Australia
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in September
Waterfall, Australia
  • Average UV index in September: 4

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

Average cloud cover in September
Waterfall, Australia
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in September
Waterfall, Australia
  • Average visibility in September: 9km

The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, March, April, May, July, September, October, November and December (9km).

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