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Patchy rain & storms occurring over the interior in weak troughs. Showers along the coasts of northern NSW, Qld & the NT in onshore winds. High is clearing skies across the eastern interior, southern NSW, Vic & Tas, with a chilly night. Front near southern WA brings showers.
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Today, 3:27AM UTC
Sunday spring storms for South Australia
The start of spring brought thunderstorms to Sydney last weekend and this weekend it's Adelaide's turn. As Adelaide and Melbourne continue to ride the spring temperature see-saw, a cold front is expected to bring thunderstorms to South Australia and western parts of Victoria on Sunday. Thunderstorms are likely to kick off early on Sunday morning over South Australia's West Coast and Eyre Peninsula, reaching Adelaide around midday then are expected to explode across eastern parts of South Australia, western Victoria and far southwest NSW during the afternoon. Winds are expected to become gusty across a broad area of South Australia tomorrow afternoon, generally peaking in the 60-80km/h range, just below warning thresholds. Thunderstorms however have the potential to become severe, producing wind gusts exceeding 90km/h. Image: Forecast wind gusts for South Australia at 1pm AEST (12:30pm ACST) according to ACCESS-C Adelaide. Source: Weatherzone Rainfall may be intense but will be brief due to the thunderstorms' fast-moving nature. As such, rainfall totals are unlikely to exceed 20mm across South Australia and Victoria. Image: Forecast total rainfall for weekend ending 10pm AEST Sunday 13th September according to ECMWF. Source: Weatherzone For Victoria, high-resolution Australian model guidance (ACCESS-C-VIC), suggests that a gust front could develop across the northwest of the state with the thunderstorm activity. If this were to occur between October and December when rye grass pollen is at its peak then Epidemic Thunderstorm Asthma could be a significant risk. The pollen count for Sunday is forecast to be low so the risk of this occurring is low (BoM also does not issue this forecast until October 1st). Nevertheless, those who are susceptible to asthma should be aware of the upcoming Epidemic Thunderstorm Asthma season, more details here. Image: Forecast wind gusts for Victoria at 4pm AEST according to ACCESS-C VIC. Source: Weatherzone Be sure to keep up to date with all the weather forecasts and warnings at Weatherzone or using the Weatherzone App.
11 Sep 2026, 7:27AM UTC
August tied as world’s warmest month on record
August 2026 was Earth’s equal warmest month on record, with a global mean surface air temperature 1.65°C above the pre-industrial average. According to data from the European Union’s Earth Observation Programme – Copernicus – the average global surface air temperature in August 2026 was 16.96°C. This was 0.85°C above the 1991–2020 average and 1.65°C above the pre-industrial 1850–1900 baseline. This was the planet’s warmest August on record, and the equal warmest month on record, on par with July 2023 in the Copernicus dataset. Ocean temperatures also broke records in August. Earth’s extra-polar oceans – those between 60°S and 60°N, which is most of the world’s oceans excluding waters near the poles – had an average sea surface temperature of 21.07°C last month. This beat the previous August record of 20.98°C from 2023 and matched the any-month record from March 2024. Why was it so warm in August? Last month’s record-breaking warmth in the atmosphere and ocean was caused by the combined influence of climate change and El Niño. Climate change is making Earth’s oceans warmer. According to data from the Bureau of Meteorology, the average sea surface temperature for Earth’s extra-polar oceans in August increased by 1.14°C between 1900 and 2026. On top of this background warming trend, a strengthening El Niño has caused abnormally warm water to build up in the tropical Pacific Ocean in recent months. In August, temperatures in the central and eastern tropical Pacific were around 2.5 to 3 °C warmer than average. These exceptionally warm waters associated with El Niño likely contributed to elevated global sea surface temperatures in 2026. Image: Global sea surface temperature anomalies in August 2026. Source: ECMWF / Copernicus. Increasing likelihood that 2026 will be Earth’s warmest year on record The rapid pace at which El Niño has developed in recent months has increased the likelihood that 2026 will become the warmest year on record based on global air temperature. In mid-August, Berkeley Earth gave a 69% chance that 2026 would become Earth’s warmest year on record. This was up from 12% the previous month. August's exceptional warmth may increase the likelihood of 2026 becoming the warmest year on record. Updated estimates will be available from Berkeley Earth later this month.
11 Sep 2026, 2:28AM UTC
Spring temperature 'see-saw' in full effect in southern Australia
Maximum temperatures will fluctuate quite dramatically across most of southern Australia over the weekend and into the new week, as the spring 'see-saw' takes full effect. Let's take a look at forecasts for the southern capitals over the coming seven days, before examining the reasons behind the contrasting temperatures. Melbourne maximums (from this Friday, September 11 through to Thursday, September 17) 16°C, 22°C, 23°C, 20°C, 14°C, 14°C, 15°C It has been cool all week in Melbourne. Wednesday's high of 13.8°C was the chilliest maximum since August 11. September's average maximum is 17.3°C. Expect another chilly outbreak next week. Adelaide maximums (from this Friday, September 11 through to Thursday, September 17) 21°C, 24°C, 22°C, 18°C, 17°C, 18°C, 20°C Adelaide's temperatures won't bounce around as much as some other capitals, but there will still be a noticeable cooling next week after some weekend warmth. September's average maximum is 18.5°C. Canberra maximums (from this Friday, September 11 through to Thursday, September 17) 21°C, 21°C, 22°C, 23°C, 19°C, 16°C, 20°C While Canberra's maximums will dip midweek after a warm spell, minimum temperatures are always a big part of the Canberra weather story too, and after sub-zero minimums the last two nights, frosty mornings will likely return by the end of next week after a few slightly warmer nights. For those who enjoy interesting meteorological facts, Canberra has recorded sub-zero minimums in all months except January and February. Image: 2-metre temperatures and 10-metre winds across Australia at 4 pm (AEST) on Wednesday, September 16, 2026, showing the contrasting temperatures between the east and west of southern Australia. Perth maximums (from this Friday, September 11 through to Thursday, September 17) 25°C, 21°C, 21°C, 24°C, 27°C, 30°C, 27°C In the case of Perth, it's not how much the temperature will dip, but how much it will rise after a brief cool spell with a weakening cold front over the weekend. Next Wednesday could be the city's first 30-degree day since April. Perth's average September maximum is 20.7°C. Sydney maximums (from this Friday, September 11 through to Thursday, September 17) 20°C, 21°C, 23°C, 27°C, 25°C, 18°C, 20°C. As the harbour city warms up next week, it won't get nearly as hot as the 32.1°C last Saturday, which was the highest reading in the first week of September in data going back to 1859. But there should still be a temperature difference approaching 10 degrees between next Monday and Wednesday's maximums. Sydney's average September high is 20.2°C. Hobart maximums (from this Friday, September 11 through to Thursday, September 17) 18°C, 19°C, 22°C, 21°C, 13°C, 15°C, 16°C After a warm spell on Sunday and Monday, Hobart residents will be reminded that they live in Australia's southernmost capital, with a wintry burst on Tuesday. The average September maximum is 15.2°C. Image: Hourly Graphs for Hobart, Tasmania, on the Weatherzone app. Cold front pushes the see-saw A cold front will push into southwest WA on Friday night, delivering only a few showers as it will be a weakening system when it arrives. That front will slide southwards as it crosses the Great Australian Bight, but a second front should make a direct hit on Tasmania and clip the southern mainland around Tuesday next week. That's the system that will cause a big temperature drop in some parts of southeastern Australia. The general progression of these systems from west to east will generate showers along Australia's southern coastline and nearby ranges, but no big rainfall totals are expected on the mainland. Western Tasmania tends to get the most rainfall from this kind of spring weather pattern, and that will be the case into the new week. Image: Predicted rainfall accumulation across SE Australia up until 10 pm (AEST) on Thursday, September 17, 2026, according to the ECMWF model. Source: Weatherzone.