The 2026 King’s Birthday long weekend is upon us, which means most workers get the day off this Monday in all states and territories except for Queensland and Western Australia.

The good news for those hoping to spend some time outdoors is that clear weather will dominate the country, with relatively mild daytime temperatures for June in many areas, after typically cool to cold nights.

For the outdoors-friendly conditions after a dynamic weather week in southern Australia, we can thank a large high pressure system which will be centred over South Australia on Saturday and drift only slowly eastwards through the long weekend.

Image: Synoptic chart for Saturday, June 6, 2026. Source: Weatherzone.

Let’s whip around the capital cities to see what the long weekend (or weekend, as the case may be) holds weather-wise.

Perth

Not too many Perth locals will argue with the forecast maximums of 22°C on both Saturday and Sunday, considering the June average high is 19.5°C.

Showers could move in later on Sunday ahead of an approaching cold front which will usher in a period of wet, cooler days from Monday onwards.

Adelaide

The SA capital gets warmer each day by a degree over the long weekend, with expected tops of 17°C, 18°C and 19°C from Saturday through to Monday. Not bad conditions for a game of footy in the park, given the average June maximum is 15.8°C.

Clear skies should prevail, with only the slight chance of a light clearing shower on Saturday morning.

Melbourne

Melbourne narrowly missed out on both its coldest and wettest day of 2026 to date on Friday, but it was still pretty bleak with a maximum of 14.2°C and rainfall of 18.6 mm.

But the long weekend will present a much more pleasant weather picture, with maximums of 18°C, 18°C and 17°C (average June maximum 14.1°C). There’s the chance of a light shower later on Saturday, but skies should be largely clear across the three days.

Hobart

Maximums of 14°C, 17°C and 17°C are expected in Hobart from Saturday through to Monday, which most locals won’t mind at all, given the average June high is just 12.1°C.

The predominantly clear skies will also be welcomed by most people, after rain fell on the first five days of the 2026 winter.

Image: Rainfall across Australia in the week to Thursday, June 4, 2026, illustrating how the southeast and southwest of the continent received significant rainfall of a magnitude which will be absent this weekend. Source: BoM.

Sydney

Winter? What’s that? Sydney can expect maximums of 20°C on both Saturday and Sunday (average June maximum 17.0°C), as westerlies keep skies clear in the wake of Friday’s cold front.  

Winds will begin to swing onshore by Monday, potentially pushing a few showers across the city and dropping temperatures by a degree or two in most suburbs.

Canberra

It’s frost season in the nation’s capital, and with minimums of 0°C, 1°C and 0°C across the long weekend, the grass should be a little frozen in the morning, albeit not as crunchy as it gets when Canberra sees much colder nights.

Days will be sunny once the fog clears, with maximums around 14°C, 13°C and 15°C across the three days (June average maximum 13.2°C).

Image: Frosty nights will mean good snowmaking conditions in Australia’s mainland ski resorts, where the 2026 snow season officially begins this long weekend. Source: Perisher.

Brisbane

Expect maximums of 22°C, 23°C and 23°C in the Queensland capital, which will be pretty close to the June average maximum of 22.0°C.

Like Sydney, weekend skies should be clear, but Brisbane could see showers by Monday and winds swing around to southeasterlies.

Darwin

Will it shock you to learn that Darwin is expecting mostly sunny conditions now that the dry season is in full swing?

Maximums will be right around the June average of 30.8°C on all three days of the long weekend.