September weather forecastHolroyd, Australia

September

Weather in September

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

Temperature

September witnesses a subtle temperature ascent, adjusting from a comfortable 18.3°C (64.9°F) in August to a pleasant 21.6°C (70.9°F). During September, Holroyd's temperature averages to a cool 10.6°C (51.1°F) at night.

Humidity

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

Rainfall

In September, the rain falls for 9.1 days. Throughout September, 29mm (1.14") of precipitation is accumulated. In Holroyd, during the entire year, the rain falls for 149.1 days and collects up to 546mm (21.5") of precipitation.

Daylight

In September, the average length of the day is 11h and 53min.
On the first day of September in Holroyd, 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.

Sunshine

The average sunshine in September is 8.6h.

UV index

The months with the lowest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

In Holroyd, 21.6°C (70.9°F) is the average high-temperature and 10.6°C (51.1°F) is the average low-temperature during September. In February, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 30°C (86°F).

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

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

In Holroyd, Australia, during September, the rain falls for 9.1 days and regularly aggregates up to 29mm (1.14") of precipitation.

In Holroyd, Australia, the average day length in September is 11h and 53min.

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

In Holroyd, the average sunshine duration in September is 8.6h.

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

The average daily maximum UV index in September in Holroyd is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Holroyd, 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).

Average pressure in September
Holroyd, 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).

Average wind speed in September
Holroyd, 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).

Average humidity in September
Holroyd, 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%).

Average rainfall in September
Holroyd, 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).

Average rainfall days in September
Holroyd, 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).

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

  • Average daylight in September: 11h and 54min

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 36min

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).

Average sunshine days in September
Holroyd, 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).

Average UV index in September
Holroyd, 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).

Average cloud cover in September
Holroyd, 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).

Average visibility in September
Holroyd, 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).