September weather forecast and climate
Melbourne, Australia

Melbourne city, Australia with a view of the Federation square across the Yarra River
Melbourne city, Australia with a view of the Federation square across the Yarra River

What is the temperature in September in Melbourne?

The average high-temperature, in September, in Melbourne, is 17.3°C (63.1°F), while the average low-temperature is 8°C (46.4°F).

How much does it rain in Melbourne in September?

In Melbourne, Australia, during September, the rain falls for 14.9 days and regularly aggregates up to 58mm (2.3") of precipitation.

When is the sea coldest in Melbourne?

With an average sea temperature of 14.7°C (58.5°F), September is the month with the coldest seawater in Melbourne, Australia. At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the water temperature in September in Melbourne?

The average seawater temperature, in September, in Melbourne, is 14.7°C (58.5°F). Swimming in 14.7°C (58.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Average temperature in September - Melbourne, Australia
  • Average high temperature in September: 17.3°C

The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is July (13.5°C).

  • Average low temperature in September: 8°C

The month with the highest average low temperature is February (14.6°C).
The coldest month (with the lowest average low temperature) is July (6°C).

Average humidity in September - Melbourne, Australia
  • Average humidity in September: 53%

The month with the highest relative humidity is June (63%).
Months with the lowest relative humidity are January and December (47%).

Average rainfall in September - Melbourne, Australia
  • Average rainfall in September: 58mm

The wettest month (with the highest rainfall) is October (66mm).
The driest month (with the lowest rainfall) is January (46.8mm).

Average rainfall days in September - Melbourne, Australia
  • Average rainfall days in September: 14.9 days

Months with the highest number of rainy days are July and August (16.1 days).
The month with the lowest number of rainy days is February (7.5 days).

Average sea temperature in September - 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 - Melbourne, Australia
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 14.7h).
The month with shortest days is June (Average daylight: 9.6h).

  • Average sunshine in September: 5.7h

The month with most sunshine is January (Average sunshine: 9h).
The month with least sunshine is June (Average sunshine: 3.6h).

Average UV index in September - Melbourne, Australia
  • Average UV index in September: 5

The month with the highest UV index is January (UV index 12).
Months with the lowest UV index are June and July (UV index 2).

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