September weather forecastRockdale, Australia

September weather forecast for Rockdale, Australia: The first month of the spring, September, is an agreeable month in Rockdale, Australia, with an average temperature ranging between max 20.3°C (68.5°F) and min 12.6°C (54.7°F). The month with the least rainfall is September, when the rain falls for 9.4 days and typically collects 17mm (0.67") of precipitation.

September

Weather in September

The first month of the spring, September, is an agreeable month in Rockdale, Australia, with an average temperature ranging between max 20.3°C (68.5°F) and min 12.6°C (54.7°F).

Temperature

As August turns into September, the average high-temperatures rest at a pleasant 20.3°C (68.5°F), showing a minor variation from the prior month. Rockdale records a consistent low-temperature of 12.6°C (54.7°F) during September nights.

Humidity

The average relative humidity in September in Rockdale is 66%.

Rainfall

The month with the least rainfall is September, when the rain falls for 9.4 days and typically collects 17mm (0.67") of precipitation.

Daylight

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 5:37 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 is 8.8h.

UV index

May through September, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

The high-temperature during September is 20.3°C (68.5°F) and the low-temperature is 12.6°C (54.7°F).

In Rockdale, the average relative humidity in September is 66%.

The month with the least rainfall is September, when the rain falls for 9.4 days and typically collects 17mm (0.67") of precipitation.

In Rockdale, in September, it is raining for 9.4 days, with typically 17mm (0.67") of accumulated precipitation.

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

On the first day of September, sunrise is at 6:13 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 5:57 pm AEST.

In Rockdale, the average sunshine duration in September is 8.8h.

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

In Rockdale, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rockdale, Australia

  • Average high temperature in September: 20.3°C

The warmest month (with the highest average high temperature) is January (26.9°C).
The month with the lowest average high temperature is July (16.6°C).

  • Average low temperature in September: 12.6°C

The months with the highest average low temperature are January and February (20.1°C).
The coldest month (with the lowest average low temperature) is July (10.1°C).

Average pressure in September
Rockdale, Australia

  • Average pressure in September: 1017.1mbar

The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

Average wind speed in September
Rockdale, Australia

  • Average wind speed in September: 15.4km/h

The windiest month (with the highest average wind speed) is August (15.8km/h).
The calmest month (with the lowest average wind speed) is April (13.5km/h).

Average humidity in September
Rockdale, Australia

  • Average humidity in September: 66%

The month with the highest relative humidity is February (75%).
The month with the lowest relative humidity is August (65%).

Average rainfall in September
Rockdale, Australia

  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is March (43mm).
The driest month (with the least rainfall) is September (17mm).

Average rainfall days in September
Rockdale, Australia

  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (9.2 days).

Average daylight in September /
Average sunshine in September
Rockdale, 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 48min

The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).

Average sunshine days in September
Rockdale, Australia

  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is July (17.6 days).
The month with the least sunshine days is February (11.8 days).

Average UV index in September
Rockdale, 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 May, June, July, August and September (UV index 4).

Average cloud cover in September
Rockdale, Australia

  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in September
Rockdale, 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).