The Illawarra and South Coast is counting the cost of the wild weather which hit the region this week.

Kiama's local government area was inundated with rain and buffeted by heavy winds.

The severe weather warning for rain has been lifted after Wednesday night's downpour was not as extensive as first feared but a wind warning is still current for the South Coast although conditions are expected to ease later on Thursday.

KIama only received 18mm in the 24 hours to 9am on Thursday after copping 133.2mm in the previous 24-hour period.

Wind gusts of more than 60km/h are still lashing the LGA on Thursday and a Coastal Hazard Warning is still in place for the Illawarra and South Coast, along with the Hunter, Sydney and Mid North Coast regions.

Damaging surf conditions are forecast to continue throughout Thursday.

Bombo Beach on Wednesday. Photo: Matty Taylor

A series of low pressure systems remain in the Tasman Sea. A secondary low that was moving northwards just offshore from the NSW coast has begun to weaken.

Strong to gale force south to southwesterly winds around these lows are generating large and powerful south to southeasterly waves on Thursday.

The yacht which ran aground off the Kiama rockpool three months ago, the Ailsa Craig, has been out of the water at Kiama Harbour getting repairs.

The Ailsa Craig has been stabilised at Kiama Harbour. Photo: The Bugle

There were fears on Wednesday that it would tip over in the strong winds and the fire brigade was called but the damaged 15-metre vessel has been stabilised.

Macquarie Pass has been closed due to landslides on the road while the Shoalhaven has also been hit hard by the extreme conditions.

Kiama's SES Unit has been busy responding to incidents with two of its flood rescue teams assisting other SES Units on the South Coast.

The NSW SES has advised residents not to enter floodwater in low-lying parts of Hay Avenue in Shoalhaven Heads after heavy heavy rainfall has caused significant river level rises across the Shoalhaven River and its tributaries.

Kiama SES crew members hard at work this week. Photo: Kiama SES

Minor flooding has also occurred at Nowra and Terara.

The Shoalhaven River peaked at 2.4m overnight.

Sanctuary Point has experienced flooding with hazardous conditions at Mountain Street, parts of Larmer Avenue and The Park Drive.

Further south at Burrill Lake, residents are also being advised to watch and act by the SES on both sides of the waterway.

Endeavour Energy has issued a statement on Thursday morning to say its crews are continuing to work on repairing storm damage and they are safely restoring power to customers as quickly as possible.

At the height of the storm, power was interrupted to nearly 30,000 homes and businesses, with wind gusts reaching up to 125 km/h and causing more than 400 electrical hazards.

Bombo Beach on Wednesday. Vision: Matty Taylor

Endeavour is looking to restore supply to the remaining 2980 customers across the Shoalhaven and Southern Highlands, as well as small pockets in Western Sydney and the lower Blue Mountains.

📞 Report fallen powerlines immediately on 131 003

⚡️ Keep at least 8m away from hanging wires or those on the ground or tangled in debris

❌ Never drive across fallen powerlines, or through flood waters!

🚑 Call 000 for life-threatening emergencies or in the event of an electrical shock.

🚨 Call NSW SES on 132 500 for emergency rescue assistance.

The scene at Jacobs Drive at Sussex Inlet on Wednesday.