The event, at Bulli Showground on August 2, was to have featured indie folk band Sons of the East and support from local artists Corey Legge, The Groove, and Kay Proudlove.

Wollongong Lord Mayor Gordon Bradbery said he knew the cancellation would disappoint many, but council's focus was on the "health, safety and well-being of all in our community".

"Throughout this pandemic council has responded to the latest information from the NSW State Government and NSW Health to ensure we've mechanisms in place to support our community and we will continue to do so," he said.

"We only have to look at Victoria and see how quickly things can change and escalate in relation to coronavirus. This is the right decision for this event, at this time.''

Councillor Bradbery said council, NSW Health and NSW Police, held a number of concerns about the event. These included the challenge of contract tracing up to 2000 people attending the event, the concert drawing people from outside the area and encouraging non-essential travel, and vehicles containing people from more than one household.

"We're sorry to cancel this event as our intent and focus was on providing a safe entertainment option for our community as well as giving people involved in live music locally an opportunity to work during this time,'' he said.

"We recently held a Drive-in movie event at Kembla Grange which was a great success. However, things are constantly changing related to Coronavirus and the risk associated with this event planned for August 2 is just too great.''

Ticket-holders will receive a refund through Eventbrite.