September weather forecastBotany, Australia

September

Weather in September

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

Temperature

September's arrival registers an average high-temperature of a pleasant 20.3°C (68.5°F), closely aligning with the temperature of the previous month. Botany anticipates an average minimum temperature of 12.6°C (54.7°F) in the month of September.

Humidity

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

Rainfall

September is the month with the least rainfall in Botany. Rain falls for 9.4 days and accumulates 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

In Botany, the average sunshine in September is 8.8h.

UV index

The months with the lowest UV index in Botany are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

During September, Botany experiences an average high-temperature of 20.3°C (68.5°F) and a low-temperature of 12.6°C (54.7°F).

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

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

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

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

The average sunshine duration in September in Botany, Australia, is 8.8h.

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

In Botany, Australia, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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
Botany, 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).