Wednesday 30th of July 9.35a.m. Sprinkling. 16.7 / 18.5kph WSW, Hg 45%, 10.4C / 50.7F headed for 15C / 59F. Rain. Marine wind warning. Sheep Graziers alert.
Moon is 31%
NSW faces a weekend washout, and a powerful cold front will also deliver wind and rain in Western Australia. (ABC News: Timothy Ailwood)
Parts of southern Australia have recorded their wettest July in decades following a trio of low-pressure systems during the past week.
And as the calendar flips to August, the rain events are forecast to continue.
Tasman low to drench Sydney and NSW coast
The recent low-pressure systems have interrupted the monotonous pattern of high-pressure that dominated southern states earlier in 2025.
Rain near the third low in the series mostly shifted into NSW later on Tuesday — however light showers under a polar air mass will still impact parts of SA and Victoria during the coming days.
For NSW though, it's the beginning of another prolonged wet spell as onshore winds off the Tasman Sea feed moisture into the slow-moving inland mass of cold air.
Falls will be heaviest near the coast during the coming days, although moderate falls are also possible over the state's northern inland.
The polar air will eventually move east and lead to the formation of a new surface low off the NSW north coast.
This next low-pressure system should initially form on Friday, before deepening into the weekend and causing rain to increase along the central and northern coastline.
The low won't reach East Coast Low status due to its mobility and only moderate strength, however the system could bring more than 100 millimetres (more than a month's worth of rain) from Friday to Sunday from the Mid North Coast, though the Hunter to eastern Sydney and the Illawarra.