September weather forecastDrummoyne, Australia

September

Weather in September

September, the first month of the spring in Drummoyne, is a pleasant month, with an average temperature varying between 11.4°C (52.5°F) and 21°C (69.8°F).

Temperature

With the onset of September, the average high-temperature stands at an agreeable 21°C (69.8°F), closely aligned with August's 18.2°C (64.8°F). In the month of September, Drummoyne's average low-temperature falls to a fresh 11.4°C (52.5°F).

Humidity

The months with the lowest humidity in Drummoyne are August and September, with an average relative humidity of 66%.

Rainfall

July and September are months with the least rain in Drummoyne when the rain falls for 9 days and typically aggregates up to 30mm (1.18") of rain.

Sea temperature

September is the month with the coldest seawater, with an average sea temperature of 18.6°C (65.5°F).
Note: The majority find it unenjoyable to swim in 18.6°C (65.5°F). Breathing becomes tougher as the water temperature descends under 21°C (69.8°F).

Daylight

In Drummoyne, 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 5:37 pm. On the last day of September, sunrise is at 5:33 am and sunset at 5:57 pm AEST.

Sunshine

In Drummoyne, Australia, the average sunshine in September is 8.7h.

UV index

May through September, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 4 during September leads to these instructions:
Make use of precautions - It is urged to ward off sun damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during September are 21°C (69.8°F) and 11.4°C (52.5°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in January is estimated at 31°C (87.8°F).

The months with the lowest humidity in Drummoyne, Australia, are August and September, with an average relative humidity of 66%.

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

July and September are months with the least rain when the rain falls for 9 days and typically aggregates up to 30mm (1.18") of rain.

In Drummoyne, Australia, during September, the rain falls for 9 days and regularly aggregates up to 30mm (1.18") of precipitation.

With an average sea temperature of 18.6°C (65.5°F), September is the month with the coldest seawater.

In September, the average sea temperature in Drummoyne, Australia, is 18.6°C (65.5°F). Swimming in 18.6°C (65.5°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

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

In September, on the first day of the month, 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 Drummoyne, Australia, the average sunshine duration in September is 8.7h.

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

The average daily maximum UV index in September in Drummoyne, Australia, is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

18.2°C

21°C

23.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.1km/h

12.8km/h

13.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

8.7

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

19.8

19.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Drummoyne, Australia

Average high temperature in September: 21°C

The warmest month (with the highest average high temperature) is January (28.2°C).
The month with the lowest average high temperature is July (16.7°C).

Average low temperature in September: 11.4°C

The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (8.9°C).

Average pressure in September
Drummoyne, 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
Drummoyne, Australia

Average wind speed in September: 12.1km/h

The windiest months (with the highest average wind speed) are January, August, September and December (12.1km/h).
The calmest month (with the lowest average wind speed) is April (10.6km/h).

Average humidity in September
Drummoyne, Australia

Average humidity in September: 66%

The month with the highest relative humidity is June (75%).
The months with the lowest relative humidity are August and September (66%).

Average rainfall in September
Drummoyne, Australia

Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is February (89mm).
The driest months (with the least rainfall) are July and September (30mm).

Average rainfall days in September
Drummoyne, Australia

Average rainfall days in September: 9 days

The month with the highest number of rainy days is January (16.3 days).
The month with the least rainy days is May (8.5 days).

Average sea temperature in September
Drummoyne, Australia

Average sea temperature in September: 18.6°C

The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).

Average daylight in September /
Average sunshine in September
Drummoyne, 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 42min

The month with the most sunshine is November (Average sunshine: 9h and 42min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).

Average sunshine days in September
Drummoyne, Australia

Average sunshine days in September: 19.5 days

The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in September
Drummoyne, 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
Drummoyne, 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 24).

Average visibility in September
Drummoyne, Australia

Average visibility in September: 10km

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