September weather forecastKoetong, Australia

September

Weather in September

September, the first month of the spring in Koetong, is a moderate month, with temperature in the range of an average low of 4.2°C (39.6°F) and an average high of 15.7°C (60.3°F).

Temperature

The start of September is characterized by a subtle increase in the average high-temperature, transitioning from a fresh 12.2°C (54°F) in August to a moderate 15.7°C (60.3°F). In September, the nighttime temperature in Koetong lowers to an average of 4.2°C (39.6°F).

Humidity

In Koetong, the average relative humidity in September is 81%.

Rainfall

In Koetong, during September, the rain falls for 11.8 days and regularly aggregates up to 46mm (1.81") of precipitation. Throughout the year, there are 134.7 rainfall days, and 592mm (23.31") of precipitation is accumulated.

Daylight

In September, the average length of the day in Koetong is 11h and 52min.
On the first day of the month, sunrise is at 6:29 am and sunset at 5:50 pm. On the last day of September, in Koetong, Australia, sunrise is at 5:47 am and sunset at 6:12 pm AEST.

Sunshine

The average sunshine in September in Koetong is 7.7h.

UV index

In September, the average daily maximum UV index in Koetong is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a regular UV index of 3 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

During September, Koetong experiences an average high-temperature of 15.7°C (60.3°F) and a low-temperature of 4.2°C (39.6°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in February is evaluated at 31°C (87.8°F).

The average relative humidity in September in Koetong is 81%.

In Koetong, during September, the rain falls for 11.8 days and regularly aggregates up to 46mm (1.81") of precipitation.

In Koetong, the average day length in September is 11h and 52min.

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 5:50 pm. On the last day of the month, in Koetong, sunrise is at 5:47 am and sunset at 6:12 pm AEST.

In Koetong, Australia, the average sunshine duration in September is 7.7h.

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
Koetong, Australia

  • Average high temperature in September: 15.7°C

The warmest month (with the highest average high temperature) is January (31.6°C).
The month with the lowest average high temperature is July (11.3°C).

  • Average low temperature in September: 4.2°C

The month with the highest average low temperature is January (16.7°C).
The coldest month (with the lowest average low temperature) is August (2.5°C).

Average pressure in September
Koetong, Australia

  • Average pressure in September: 1017.5mbar

The month with the highest atmospheric pressure is June (1022.3mbar).
The month with the lowest atmospheric pressure is January (1011.3mbar).

Average wind speed in September
Koetong, Australia

  • Average wind speed in September: 8.5km/h

The windiest months (with the highest average wind speed) are September and December (8.5km/h).
The calmest month (with the lowest average wind speed) is June (6.4km/h).

Average humidity in September
Koetong, Australia

  • Average humidity in September: 81%

The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is January (49%).

Average rainfall in September
Koetong, Australia

  • Average rainfall in September: 46mm

The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is January (34mm).

Average rainfall days in September
Koetong, Australia

  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is August (15.2 days).
The month with the least rainy days is January (8.5 days).

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

  • Average daylight in September: 11h and 54min

The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is July (Average sunshine: 6h and 0min).

Average sunshine days in September
Koetong, Australia

  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is August (13.6 days).

Average UV index in September
Koetong, Australia

  • Average UV index in September: 3

The month with the highest UV index is January (UV index 7).
The month with the lowest UV index is June (UV index 2).

Average cloud cover in September
Koetong, Australia

  • Average cloud cover in September: 44

The month with the most cloud cover is July (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 18).

Average visibility in September
Koetong, Australia

  • Average visibility in September: 7km

The months with the highest visibility are January, February, March and December (10km).
The month with the lowest visibility is July (6km).