September weather forecast and climate
Adelaide, Australia

Average temperature in September - Adelaide, Australia
  • Average high temperature in September: 19°C

The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is July (15.3°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is February (17.2°C).
The coldest month (with the lowest average low temperature) is July (7.5°C).

Average humidity in September - Adelaide, Australia
  • Average humidity in September: 51%

The month with the highest relative humidity is June (61%).
Months with the lowest relative humidity are January and February (36%).

Average rainfall in September - Adelaide, Australia
  • Average rainfall in September: 58.7mm

The wettest month (with the highest rainfall) is June (79.3mm).
The driest month (with the lowest rainfall) is February (13.5mm).

Average rainfall days in September - Adelaide, Australia
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is August (16.6 days).
The month with the lowest number of rainy days is February (3.6 days).

Average sea temperature in September - Adelaide, Australia
  • Average sea temperature in September: 15°C

The best month for swimming (with the highest average sea temperature) is February (20°C).
Coldest months (with the lowest average sea temperature) are August, September and October (15°C).

Average daylight in September / Average sunshine in September - Adelaide, Australia
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 14.5h).
The month with shortest days is June (Average daylight: 9.8h).

  • Average sunshine in September: 6.8h

The month with most sunshine is January (Average sunshine: 10.5h).
The month with least sunshine is June (Average sunshine: 4.6h).

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

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

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