All three will be hit with strong winds and dangerous surf.
Popular beaches in Sydney have closed following a hazardous surf warning caused by a large swell.
Bronte, Taramara and North Bondi beaches have closed.
Bondi’s main beach is open for experienced surfers and lifeguards only, as the swell continues to cause dangerous surf conditions.
The Hunter, Illawarra, Batemans and Eden coasts are also impacted by the hazardous surf warnings.
Large swells are expected to make coastal activities such as rock fishing, boating and swimming dangerous.
The Eden coast has been issued a gale wind warning, while the Sydney, Illawarra and Batemans Coast have been issued a strong wind warning.
The hazardous wind and surf conditions are expected to remain until April 11, with the strong swell expected to spread into the Macquarie coast by tomorrow morning.
“People should consider staying out of the water and avoid walking near surf-exposed areas,” NSW Police advised in a statement.
“Rock fishers should avoid coastal rock platforms exposed to the ocean and seek a safe location that is sheltered from the surf.”
The state will also feel a cold nip over the next few days and is not expected to warm up until next Sunday, which is forecast to hit a warm 25 degrees compared to today’s high of 20 degrees.
The inland mountain region will experience the coolest weather, a chilly -3 degrees expected to freeze the area on Monday and Tuesday morning.
The state will face cool temperatures following the cool front that moved through Victoria and Tasmania over the Easter weekend, hitting both states with snow and rain.
The cool snap isn’t over just yet for Melburnians, with the state still expected to freeze in cold temperatures, not expected to hit above 15 degrees on Monday.
Victoria will also be hit with gale-force winds on the East Gippsland Coast for the next two days.
The alpine regions will bear the brunt of the cold, dropping to a freezing -4 degrees on Monday and Tuesday morning.
Winds will hit a peak of 40km/h on Monday, before easing to a manageable 20km/h on Tuesday.
East of Flinders Island, the Upper East Coast and the Lower East Coast have been issued with a gale wind warning, while the Derwent Estuary, Frederick Henry Bay and Norfolk Bay, Storm Bay, Channel, Far North West Coast, South East Coast, South West Coast and Central West Coast areas have all been issued with a strong wind warning.
Temperatures will not peak above 21 degrees for the next seven days.