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A gusty cold front is clipping the southeast, introducing very cold air over Tas, Vic and southeast NSW, with snow in Tas and flurries in the alps. A persistent low pressure area brings showers and storms to WA while a belt of high pressure keeps most of the remainder settled.
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Today, 1:13AM UTC
Heavy snowfalls in Tasmania as cold front bites
Temperatures are dropping rapidly as a cold front surges across southeastern Australia, with the coldest air enveloping Tasmania and leaving our southernmost state with a heavy coating of snow to low levels this Tuesday. This was the scene at the Mt Mawson public shelter, about two hours northwest of Hobart just before 10 am this Tuesday. Image: The Mt Mawson public shelter on Tuesday, September 15, 2026. Source: Mt Mawson. The shelter, located at the bottom of the Mt Mawson club-run (non-commercial) ski area, is situated at just under 1200 metres above sea level. Often, that's around the low extent of the snowline during a spring snowfall, but snow is forecast to fall as low as 300 metres in Tasmania today. Temperature observations illustrating how cold it this Tuesday Image: 850 hPa temperatures and mean sea level pressure for Australia at 10 am (AEST) on Tuesday, September 15, 2026. Source: Weatherzone. The image above shows the cold air mass pushing northwards across Tasmania and the southeastern tip of the mainland as air circulates around the high pressure system located over the Great Australian Bight. At 10:30 am (AEST), the coldest observed temperatures in three states included: Tas -1.2°C (with an apparent or "feels like" temperature of -13.3°C) at kunanyi/Mt Wellington above Hobart Vic 2.1°C (with an apparent or "feels like" temperature of -5.7°C) at Mt William, the 1167m highest point of The Grampians in western Victoria's Wimmera region NSW 4.6°C (with an apparent or "feels like" temperature of -5.4°C) at Thredbo Top Station It's worth noting that the coldest air had not yet progressed to the mainland high country by Tuesday mid-morning, which is why Victoria's coldest reading at 10:30 am was at Mt William in the state's west, while Australia's highest weather station near the top of the Thredbo ski slopes was still several degrees above zero. But the cold air is progressing north, albeit with limited moisture, which is why mainland snowfalls will be much lighter today than down south in Tasmania. Why is it so cold in Tasmania and the southern mainland this Tuesday? Image: Combined satellite and radar loop for southeastern Australia for the four hours until 10:30 am (AEST) on Tuesday, September 15, 2026. Source: Weatherzone. The loop above shows a polar air mass starting to cross the southeast on Tuesday morning, with the bulk of the moisture (the green blobs) lashing western and central Tasmania. As Weatherzone meteorologist Ben Domensino has previously explained, the classic speckled cloud pattern develops when cold polar air moves over a relatively warm body of water, creating atmospheric instability that generates a field of individual cumulus cloud cells separated by clear patches of sky. Multiple wind warnings issued on Tuesday As mentioned in our Monday story, strong winds are accompanying this icy blast, and while many of the strongest readings occurred during the northwesterlies that preceded the polar air mass, gusts again topped 100 km/h today at Maatsuyker Island on Tasmania's southwest tip. Numerous strong wind warnings are in place, especially for coastal areas of Tasmania, Victoria and southern New South Wales, so please check the latest on the Weatherzone warnings page.
14 Sep 2026, 3:03AM UTC
Icy, gusty cold front to whip through southeastern Australia
A brief return to chilly weather is on its way to southeastern Australia, with Tasmania and parts of the mainland in line for a wild, windy, very wintry Tuesday. We wrote last week about the spring temperature "see-saw", and the temperature contrasts will be stark in the first few days of this week across Australia's most populated corner. Melbourne's maximum will drop from around 19°C this Monday to around 14°C on Tuesday and just 13°C on Wednesday. The average September maximum is 17.3°C. Hobart's maximum should reach around 21°C this Monday but peak only around 13°C on Tuesday. The average September maximum is 15.2°C Sydney's maximum will drop from around 26°C this Monday to around 18°C on Wednesday. The average September maximum is 20.2°C. Canberra is set for a mild 21°C this Monday but by Wednesday the mercury should only peak around 13°C, followed by a frosty start to Thursday. The national capital's average September maximum is 17.9°C. Light showers and mountain snowfalls on the southern mainland Image: A classic speckled cloud pattern over the Great Australian Bight associated with a polar air mass at midday (AEST) on Monday, September 14, 2026. Source: Weatherzone. This will not be a particularly wet system for the mainland, with only a few showers likely in southern Victoria, with light snowfalls in the high country of Vic and southern NSW. Tuesday's snow level of 800 metres above sea level for this region emphasises how chilly the coming air mass will be. Unfortunately, any snowfalls won't mean much for the ski resorts, as only Perisher in NSW remains open. Widespread Tasmanian rain and showers with snow to low levels For Tasmania, it's a different story with showers extending across much of the state on Tuesday, heaviest on the west coast. The BoM has forecast a Tuesday snow level of just 300 metres across parts of the state. This would be a very low level for midwinter and is as low as any Tasmanian snow level forecast to date in 2026. Image: Forecast accumulated rainfall totals to 10 am (AEST) on Thursday, September 17, 2026, for SE Australia, according to the ECMWF model. Source: Weatherzone. Windy weather to spread up east coast After the cold front crosses Tasmania and the southeast tip of the mainland, it will push northwards over the Tasman Sea, with powerful winds lashing the coast and adjacent areas. Numerous wind warnings are already in place across the southeast as gusty northwesterlies ahead of the cold front increase in intensity this Monday, while multiple coastal wind warnings for gales and strong winds have also been issued for Tuesday, with more likely to follow. A gust of 104 km/h was recorded at Australia's highest weather station, Thredbo Top Station, just before 5 am this morning, while the notoriously windy Maatsuyker Island on Tasmania's southwest tip recorded a gust of 109 km/h just after midday on Monday. Please check the Weatherzone warnings page for all the latest severe weather warnings.
13 Sep 2026, 10:26PM UTC
Perth weather this week: First 30°C of the season, then rain
Perth will experience a swing from warm to wet weather this week, with the city forecast to have its first 30°C of the season on Wednesday before rain sets in on Friday. A high pressure system passing to the south of Western Australia during the first half of this week will cause warm air to flow towards the state’s west coast. This injection of warm air will cause daily maximum temperatures to increase from around 24°C on Monday to 27°C on Tuesday and possibly reaching 30°C on Wednesday. If it does get this warm, Wednesday would be Perth’s first 30°C so far this spring and the city’s warmest day in five months. After another warm day on Thursday, with a maximum around 27°C, Friday will be noticeably cooler in Perth and surrounding areas as a cold front causes cloud and rain to develop over the state’s west. Current forecasts suggest Perth could see around 10-20 mm of rain as the front passes through on Friday, although totals may vary depending on the timing and strength of the front. Image: Forecast accumulated rain this week. Most of the rain predicted here for the state’s southwest will fall on Friday into Saturday. Source: Weatherzone. It will also be noticeably cooler behind the front, with maximum temperatures forecast to reach about 23°C on Friday and 20°C on Saturday. Further inland, a separate low pressure trough will cause widespread showers and thunderstorms over WA between Monday and Wednesday this week. This thunderstorm activity will stretch from the Interior towards the Pilbara, Gascoyne and parts of the state’s west and south. Some of these storms are likely to become severe and there may even be a few storms around Perth, most likely on Wednesday. Perth's temperature see-saw this week, with maximums ranging from 30°C on Wednesday to 20°C on Saturday, and the widespread thunderstorms are sure signs that spring is well underway in WA.