Yes, from mid October onwards. If i had a dollar for every time someone asked me when is the best time for storms in Darwin I'd ne a rich man. They are sporadic but widespread and hard to chase (Nick Moir will attest to this!)
We've already had one storm inland at Labelle Station about 100km from Darwin. Usually that location fires up early and frequently and it dumped a nice bit of precip Monday arvo at 3:15pm. Only lasted about 20 mins, but radar showed a nice splitting cell. From what I could see of it it was low capped but had nice structure, alas a small anvil as a dry layer prevented any real 'lift' to finish the storms appearance.
Certainly caught my attention and a few others also...it was due to a heat low extending into the NT NW of us and a healthy NW flow. Temps were about 34c out there and DP's up to 21C, so there was plenty of energy earlier on for it.
But yes, October 1 is the official wet season date...they predict a very hot build up period thanks to el Nino...just what I want...all heat and not wet stuff...not.