When:
September 1, 2016 – September 30, 2016 all-day
2016-09-01T00:00:00+09:30
2016-10-01T00:00:00+09:30

The Yawuru people of Northern Western Australia recognise six seasons. These seasons roughly correspond to the following Western calendar months:
Mankala – December to March; Marul – April; Wirralburu – May; Barrgana – June to August; Wirlburu – September; Larja – October to November.
Source: Bureau of Meteorology website – http://www.bom.gov.au/iwk/yawuru/wirlburu.shtml