September weather forecastKirribilli, Australia
September
Weather in September
September, the first month of the spring in Kirribilli, is a pleasant month, with temperature in the range of an average high of 20.6°C (69.1°F) and an average low of 12.2°C (54°F).Temperature
The commencement of September introduces an average high-temperature of an agreeable 20.6°C (69.1°F), closely mirroring the preceding month. Kirribilli, during the month of September, experiences an average low-temperature of 12.2°C (54°F).Humidity
The months with the lowest humidity in Kirribilli, Australia, are August and September, with an average relative humidity of 66%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.5 days and typically collects 35mm (1.38") of precipitation.Sea temperature
The month with the coldest seawater in Kirribilli is September, with an average sea temperature of 18.6°C (65.5°F).Note: A surface water temperature of 18.6°C (65.5°F) does not provide an enjoyable swimming experience for most. Breathing control becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
The average length of the day in September in Kirribilli 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, in Kirribilli, sunrise is at 5:33 am and sunset at 5:57 pm AEST.
Sunshine
In Kirribilli, 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 in Kirribilli. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September translates into the following guidance:
Undertake protective steps - Recommendations to avoid sunburn are issued. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kirribilli, Australia
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is January (27.3°C).
The month with the lowest average high temperature is July (16.6°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in September
Kirribilli, Australia
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in September
Kirribilli, Australia
- Average wind speed in September: 13.9km/h
The windiest months (with the highest average wind speed) are January and August (14km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in September
Kirribilli, Australia
- Average humidity in September: 66%
The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are August and September (66%).
Average rainfall in September
Kirribilli, Australia
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is February (92mm).
The driest month (with the least rainfall) is September (35mm).
Average rainfall days in September
Kirribilli, Australia
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (10.1 days).
Average sea temperature in September
Kirribilli, 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
Kirribilli, 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
Kirribilli, Australia
- Average sunshine days in September: 17 days
The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in September
Kirribilli, 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
Kirribilli, Australia
- Average cloud cover in September: 26
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
Kirribilli, 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).
