September weather forecast
Merrylands, Australia

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Weather in September

The first month of the spring, September, is a pleasant month in Merrylands, Australia, with an average temperature fluctuating between 21.6°C (70.9°F) and 10.6°C (51.1°F).

Temperature

In September, the meteorological conditions subtly change with the average high-temperature edging from a comfortable 18.3°C (64.9°F) in August to a pleasant 21.6°C (70.9°F). During September nights, Merrylands witnesses a consistent average temperature of 10.6°C (51.1°F).

Humidity

With an average relative humidity of 65%, September is the least humid month in Merrylands, Australia.

Rainfall

In September, in Merrylands, the rain falls for 9.1 days. Throughout September, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Merrylands, there are 149.1 rainfall days, and 546mm (21.5") of precipitation is accumulated.

Daylight

In Merrylands, Australia, the average length of the day in September is 11h and 53min.
On the first day of the month, sunrise is at 6:13 am and sunset at 5:38 pm. On the last day of September, sunrise is at 5:33 am and sunset at 5:57 pm AEST.

Sunshine

The average sunshine in September in Merrylands is 8.6h.

UV index

The months with the lowest UV index in Merrylands are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the UV index of 4 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the usual temperature for Merrylands in September?

In September, the average high-temperature and low-temperature in Merrylands are 21.6°C (70.9°F) and 10.6°C (51.1°F) respectively. In February, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 30°C (86°F).

What is the least humid month in Merrylands?

September is the least humid month in Merrylands, Australia, with an average relative humidity of 65%.

What is the average humidity in September in Merrylands?

In September, the average relative humidity in Merrylands is 65%.

How many days does it rain in September in Merrylands?

In Merrylands, Australia, in September, it is raining for 9.1 days, with typically 29mm (1.14") of accumulated precipitation.

What is the average length of the day in September in Merrylands?

The average day length in September is 11h and 53min.

When are sunrise and sunset in September in Merrylands?

On the first day of September, sunrise is at 6:13 am and sunset at 5:38 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 5:57 pm AEST.

How long on average sun shines in September in Merrylands?

The average sunshine duration in September in Merrylands is 8.6h.

What is the month with the lowest UV index in Merrylands?

The months with the lowest UV index in Merrylands are May through September, with an average maximum UV index of 4.

How high is the UV index in September in Merrylands?

The average daily maximum UV index in September in Merrylands, 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 temperature in September
Merrylands, Australia

Average temperature in September - Merrylands, Australia
  • Average high temperature in September: 21.6°C

The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is June (16.8°C).

  • Average low temperature in September: 10.6°C

The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).

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Average pressure in September
Merrylands, Australia

Average pressure in September - Merrylands, Australia
  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

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Average wind speed in September
Merrylands, Australia

Average wind speed in September - Merrylands, Australia
  • Average wind speed in September: 10.1km/h

The windiest month (with the highest average wind speed) is December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).

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Average humidity in September
Merrylands, Australia

Average humidity in September - Merrylands, Australia
  • Average humidity in September: 65%

The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is September (65%).

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Average rainfall in September
Merrylands, Australia

Average rainfall in September - Merrylands, Australia
  • Average rainfall in September: 29mm

The wettest month (with the highest rainfall) is February (87mm).
The driest month (with the least rainfall) is May (27mm).

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Average rainfall days in September
Merrylands, Australia

Average rainfall days in September - Merrylands, Australia
  • Average rainfall days in September: 9.1 days

The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (7.9 days).

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Average daylight in September /
Average sunshine in September
Merrylands, Australia

Average daylight in September / Average sunshine in September - Merrylands, 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 months with the most sunshine are November and December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

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Average sunshine days in September
Merrylands, Australia

Average sunshine days in September - Merrylands, Australia
  • Average sunshine days in September: 19.5 days

The month with the most sunshine days is August (21 days).
The month with the least sunshine days is February (10.4 days).

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Average UV index in September
Merrylands, Australia

Average UV index in September - Merrylands, Australia
  • Average UV index in September: 4

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

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Average cloud cover in September
Merrylands, Australia

Average cloud cover in September - Merrylands, Australia
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Merrylands, Australia

Average visibility in September - Merrylands, Australia
  • Average visibility in September: 9km

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

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Merrylands, Australia

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