September weather forecast and climate
Cairns, Australia

What is the temperature in September in Cairns?

In Cairns, Australia, in September, the average high-temperature is 27°C (80.6°F), and the average low-temperature is 18°C (64.4°F).

How many days does it rain in September in Cairns?

In Cairns, Australia, during September, the rain falls for 3 days and regularly aggregates up to 39mm (1.5") of precipitation.
Average temperature in September - Cairns, Australia
  • Average high temperature in September: 27°C

Warmest months (with the highest average high temperature) are January, February and December (31°C).
Months with the lowest average high temperature are June and July (25°C).

  • Average low temperature in September: 18°C

Months with the highest average low temperature are January, February and December (23°C).
The coldest month (with the lowest average low temperature) is July (16°C).

Average rainfall in September - Cairns, Australia
  • Average rainfall in September: 39mm

The wettest month (with the highest rainfall) is March (442mm).
The driest month (with the lowest rainfall) is August (38mm).

Average rainfall days in September - Cairns, Australia
  • Average rainfall days in September: 3 days

The month with the highest number of rainy days is February (14 days).
The month with the lowest number of rainy days is September (3 days).

Average sea temperature in September - Cairns, Australia
  • Average sea temperature in September: 24.8°C

The best month for swimming (with the highest average sea temperature) is January (29.5°C).
The coldest month (with the lowest average sea temperature) is July (23.8°C).

Average daylight in September / Average sunshine in September - Cairns, Australia
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 13.1h).
The month with shortest days is June (Average daylight: 11.1h).

  • Average sunshine in September: 8h

The month with most sunshine is October (Average sunshine: 9h).
Months with least sunshine are February, March, April and May (Average sunshine: 6).

Average UV index in September - Cairns, Australia
  • Average UV index in September: 11

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 7).

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