Wake Up Sydney brings you the Halloween Saturday update for 31 October 2026, with the latest on weather, traffic and trains across Sydney. It’s a warm, muggy and unsettled day ahead, with showers and possible storms affecting the CBD, Parramatta and Bondi. Temperatures are heading for around 27°C at Bondi and up to 29°C in Parramatta, so if you’re heading out in costume, keep an umbrella close.
On the roads, traffic is generally quiet across Sydney, but there is a crash in Mona Vale on Barrenjoey Road at Grandview Parade. Two of three lanes are closed in both directions, so drivers on the Northern Beaches should slow down, take care and allow extra travel time.
Public transport is facing major weekend trackwork. The Inner West Line is not running, and buses are replacing trains on parts of the T1 North Shore, T9 Northern, and Central Coast & Newcastle lines. Several services, including the T1 Western, Blue Mountains, T3 Bankstown, and Sutherland to Hurstville routes, are also running to changed timetables.
Before you head out for Halloween plans, check your transport apps, plan ahead and give yourself extra time. Wake Up Sydney keeps you informed so you can move around the city with less stress and more confidence.