A Bureau of Meteorology spokeswoman said there were up to 10-metre high south-westerly swells expected between the border of South Australia and Cape Otway.

She said that included the coastline of Port Campbell.

"We're looking at at dangerous conditions as well as possible damage to infrastructure along the coast," she said.

The spokeswoman said a cold front passed through Warrnambool just after 8am on Saturday.

She said the cold front brought cooler temperatures with Warrnambool reaching a maximum temperature of 17.7 degrees.

She said Sunday was expected to be even colder, with maximum temperatures expecting to reach 16 degrees and dropping as low as eight.

Warrnambool saw 5.4mm of rain between 9am Friday and 9am Saturday, most of which fell on Saturday morning.

During the day, there was just 0.4mm rainfall recorded in the city between 9am and 5pm.

The spokeswoman sad showers were expected to continue overnight with a "slight chance of a thunderstorm and hail" .

She said showers were expected to east on Sunday.

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