Wet weather to give way to warm weekend

Parts of Sydney have received their biggest dump of rain in five years, helping to soak gardens still dry after a prolonged spell of below-average falls.

The 56mm of rain at Sydney Airport on Tuesday was the most in 21 months, Brett Dutschke, senior meteorologist with Weatherzone, said

Mona Vale in the city's north collected 112 millimetres of rain on Monday night, the most for that site since 2013.

“The rain dump was caused by a southerly change that slowed as it moved up the coast, creating a relatively small region of converging winds "with a fair bit of moisture", Mr Dutschke said.

Sydney itself collected 53mm, the second-most in the past nine months.

Showers eased yesterday with another 6 mm in the city, but will likely return today with another 2-10 mm expected, the Bureau of Meteorology said.

After a mild day today the mercury is set to climb towards the high-30s by the weekend.

Coastal suburbs will reach temperatures of about 30-33 degrees for three days from Saturday, according to bureau forecasts.