September weather forecastBellevue Hill, Australia
September
Weather in September
September, the first month of the spring in Bellevue Hill, is an agreeable month, with temperature in the range of an average low of 12.8°C (55°F) and an average high of 20.2°C (68.4°F).Temperature
With the transition into September, Bellevue Hill notes an average high-temperature of an agreeable 20.2°C (68.4°F), closely resembling August. An average nighttime temperature of 12.8°C (55°F) is witnessed throughout September.Humidity
In September, the average relative humidity in Bellevue Hill, Australia, is 66%.Rainfall
In Bellevue Hill, Australia, in September, during 9.6 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, in Bellevue Hill, there are 166.6 rainfall days, and 653mm (25.71") of precipitation is accumulated.Sea temperature
The month with the coldest seawater in Bellevue Hill is September, with an average sea temperature of 18.6°C (65.5°F).Note: Most people find swimming in 18.6°C (65.5°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
In Bellevue Hill, the average length of the day in September is 11h and 53min.On the first day of September in Bellevue Hill, Australia, sunrise is at 6:12 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 5:56 pm AEST.
Sunshine
In Bellevue Hill, Australia, the average sunshine in September is 8.8h.UV index
The months with the lowest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bellevue Hill, Australia
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is January (26.8°C).
The month with the lowest average high temperature is July (16.6°C).
- Average low temperature in September: 12.8°C
The month with the highest average low temperature is January (20.2°C).
The coldest month (with the lowest average low temperature) is July (10.3°C).
Average pressure in September
Bellevue Hill, 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
Bellevue Hill, Australia
- Average wind speed in September: 15.8km/h
The windiest month (with the highest average wind speed) is August (16.2km/h).
The calmest month (with the lowest average wind speed) is April (13.9km/h).
Average humidity in September
Bellevue Hill, 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
Bellevue Hill, Australia
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is February (93mm).
The driest month (with the least rainfall) is July (31mm).
Average rainfall days in September
Bellevue Hill, Australia
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is March (19 days).
The month with the least rainy days is August (9.2 days).
Average sea temperature in September
Bellevue Hill, 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
Bellevue Hill, 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
Bellevue Hill, Australia
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Bellevue Hill, 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
Bellevue Hill, 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
Bellevue Hill, 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).
