Raincoats could be the order of the day for Canberrans visiting the Royal Canberra Show, as the capital feels the fringe of a wet and windy weather system brings severe conditions to the NSW coast.

Despite the forecast showers and wind, a Bureau of Meteorology forecaster said Canberra would get off relatively lightly compared to other parts of NSW.

“Canberra’s one of the better places over the state at the moment,” the forecaster said.

“Today is actually looking pretty good. The higher rainfall is really in the coastal areas.

“But if we go into Saturday the ACT is looking like it’s going to be in the range of 7-20mm … It’s also going to be quite windy.”

The wind is forecast to get up to 50 km/h in Canberra on Saturday morning, before easing in the afternoon. The temperature isn’t expected to go above 22 degrees, with the south-easterly breezes making it feel even cooler still.

Conditions should improve on Sunday, with lighter wind, just a few isolated showers, and a warmer top temperature of about 29 degrees.

The wet conditions are coming from a tropical low pressure system which is forecast to dump hundreds of millimetres over parts of NSW as it crosses the coast and moves inland.

A number of rivers in northern NSW are already experiencing minor floods or are on flood watch, while a severe weather warning has been issued for the Northern Rivers, Mid North Coast, Hunter and Northern Tablelands forecast districts.