September weather forecast
Grass Patch, Australia

September

Weather in September

September, the first month of the spring in Grass Patch, is also an enjoyable month, with an average temperature fluctuating between 11.3°C (52.3°F) and 17.3°C (63.1°F).

Temperature

September's arrival brings an average high-temperature of a still refreshing 17.3°C (63.1°F), slightly deviating from August's 16.4°C (61.5°F). Grass Patch experiences a consistent average temperature of 11.3°C (52.3°F) throughout the nights in September.

Humidity

The average relative humidity in September is 71%.

Rainfall

In Grass Patch, Australia, during September, the rain falls for 14 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, in Grass Patch, there are 144.9 rainfall days, and 372mm (14.65") of precipitation is accumulated.

Daylight

In September, the average length of the day is 11h and 53min.
On the first day of September, sunrise is at 6:10 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 5:54 pm AWST.

Sunshine

In Grass Patch, the average sunshine in September is 7.5h.

UV index

The months with the lowest UV index are May through October, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

What is the usual temperature for Grass Patch in September?
September temperatures in Grass Patch vary between a high-temperature of 17.3°C (63.1°F) and a low-temperature of 11.3°C (52.3°F).
What is the average humidity in September in Grass Patch?
In Grass Patch, the average relative humidity in September is 71%.
How many days does it rain in September in Grass Patch?
In September, in Grass Patch, the rain falls for 14 days. Throughout September, 28mm (1.1") of precipitation is accumulated.
What is the average length of the day in September in Grass Patch?
In Grass Patch, Australia, the average day length in September is 11h and 53min.
When is the sunrise / sunset in September in Grass Patch?
In September, on the first day of the month, sunrise is at 6:10 am and sunset at 5:35 pm. On the last day of the month, in Grass Patch, Australia, sunrise is at 5:31 am and sunset at 5:54 pm AWST.
How many hours of sunshine does Grass Patch have in September?
The average sunshine duration in September in Grass Patch is 7.5h.
What are the months with the lowest UV index in Grass Patch?
May through October, with an average maximum UV index of 4, are months with the lowest UV index in Grass Patch.
What is the UV index intensity in September in Grass Patch?
The average daily maximum UV index in September in Grass Patch, Australia, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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 - Grass Patch, Australia
Average temperature in September
Grass Patch, Australia
  • Average high temperature in September: 17.3°C

The warmest month (with the highest average high temperature) is January (24.7°C).
The month with the lowest average high temperature is July (16°C).

  • Average low temperature in September: 11.3°C

The month with the highest average low temperature is February (18.1°C).
The coldest months (with the lowest average low temperature) are July and August (10.8°C).

Average pressure in September - Grass Patch, Australia
Average pressure in September
Grass Patch, Australia
  • Average pressure in September: 1017.9mbar

The month with the highest atmospheric pressure is June (1020.5mbar).
The month with the lowest atmospheric pressure is January (1013.8mbar).

Average wind speed in September - Grass Patch, Australia
Average wind speed in September
Grass Patch, Australia
  • Average wind speed in September: 21.5km/h

The windiest months (with the highest average wind speed) are July and August (22km/h).
The calmest month (with the lowest average wind speed) is April (18.3km/h).

Average humidity in September - Grass Patch, Australia
Average humidity in September
Grass Patch, Australia
  • Average humidity in September: 71%

The month with the highest relative humidity is August (73%).
The month with the lowest relative humidity is December (66%).

Average rainfall in September - Grass Patch, Australia
Average rainfall in September
Grass Patch, Australia
  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is August (58mm).
The driest month (with the least rainfall) is April (21mm).

Average rainfall days in September - Grass Patch, Australia
Average rainfall days in September
Grass Patch, Australia
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (8.4 days).

Average daylight in September / Average sunshine in September - Grass Patch, Australia
Average daylight in September /
Average sunshine in September
Grass Patch, Australia
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in September: 7h and 3min

The months with the most sunshine are January and December (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 5h and 42min).

Average sunshine days in September - Grass Patch, Australia
Average sunshine days in September
Grass Patch, Australia
  • Average sunshine days in September: 12.4 days

The month with the most sunshine days is December (18.3 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September - Grass Patch, Australia
Average UV index in September
Grass Patch, Australia
  • Average UV index in September: 4

The month with the highest UV index is February (UV index 6).
The months with the lowest UV index are May, June, July, August, September and October (UV index 4).

Average cloud cover in September - Grass Patch, Australia
Average cloud cover in September
Grass Patch, Australia
  • Average cloud cover in September: 33

The months with the most cloud cover are July and August (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 27).

Average visibility in September - Grass Patch, Australia
Average visibility in September
Grass Patch, 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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