September weather forecastPort Melbourne, Australia
September
Weather in September
The first month of the spring, September, is a comfortable month in Port Melbourne, Australia, with an average temperature fluctuating between 7.4°C (45.3°F) and 16°C (60.8°F).Temperature
Port Melbourne's weather, upon September's arrival, documents an average high-temperature of a still refreshing 16°C (60.8°F), nearly identical to the prior month. September's average low-temperature reading settles at a frosty 7.4°C (45.3°F).Humidity
The average relative humidity in September is 74%.Rainfall
In Port Melbourne, in September, during 16.2 rainfall days, 39mm (1.54") of precipitation is typically accumulated. In Port Melbourne, during the entire year, the rain falls for 163.4 days and collects up to 465mm (18.31") of precipitation.Sea temperature
The month with the coldest seawater is September, with an average sea temperature of 14.7°C (58.5°F).Note: Swimming in 14.7°C (58.5°F) can be lethal. Merely spending a few minutes in 13°C (55.4°F) waters feels harsh, and venturing below 10°C (50°F) might disrupt breathing control and bring about cold shock, contingent on individual resilience.
Daylight
In Port Melbourne, Australia, the average length of the day in September is 11h and 51min.On the first day of September in Port Melbourne, sunrise is at 6:41 am and sunset at 5:59 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 6:23 pm AEST.
Sunshine
The average sunshine in September in Port Melbourne is 7.4h.UV index
The months with the lowest UV index in Port Melbourne are May through September, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Port Melbourne, Australia
- Average high temperature in September: 16°C
The warmest month (with the highest average high temperature) is January (25.8°C).
The month with the lowest average high temperature is July (12.4°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is February (14.8°C).
The coldest month (with the lowest average low temperature) is August (6.6°C).
Average pressure in September
Port Melbourne, Australia
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is June (1021.4mbar).
The month with the lowest atmospheric pressure is January (1012.3mbar).
Average wind speed in September
Port Melbourne, Australia
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is August (13.9km/h).
The calmest month (with the lowest average wind speed) is April (10.6km/h).
Average humidity in September
Port Melbourne, Australia
- Average humidity in September: 74%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is January (63%).
Average rainfall in September
Port Melbourne, Australia
- Average rainfall in September: 39mm
The wettest months (with the highest rainfall) are August and December (45mm).
The driest months (with the least rainfall) are March and April (34mm).
Average rainfall days in September
Port Melbourne, Australia
- Average rainfall days in September: 16.2 days
The months with the highest number of rainy days are July and August (16.9 days).
The month with the least rainy days is January (9.5 days).
Average sea temperature in September
Port Melbourne, Australia
- Average sea temperature in September: 14.7°C
The best month for swimming (with the highest average sea temperature) is February (18.8°C).
The coldest month (with the lowest average sea temperature) is September (14.7°C).
Average daylight in September /
Average sunshine in September
Port Melbourne, Australia
- Average daylight in September: 11h and 48min
The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is December (Average sunshine: 9h and 48min).
The months with the least sunshine are July and August (Average sunshine: 6h and 30min).
Average sunshine days in September
Port Melbourne, Australia
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is January (16.7 days).
The months with the least sunshine days are July and August (10.5 days).
Average UV index in September
Port Melbourne, Australia
- Average UV index in September: 3
The months with the highest UV index are January, February, March, October, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in September
Port Melbourne, Australia
- Average cloud cover in September: 43
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Port Melbourne, Australia
- Average visibility in September: 9km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are April, May, June, July, August, September, October, November and December (9km).
