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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Pulse Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Sydney’s coastal subtropical climate delivers warm, humid summers and mild winters, with the live forecast above showing the immediate conditions. The city’s weather is shaped by its harbour-side position and proximity to the Tasman Sea.
What makes Sydney’s weather different each day?
The daily pattern in Sydney is largely defined by the coastal sea breeze, which moderates temperatures on most afternoons from spring through autumn. For real-time tracking, the sydney weather radar on the Bureau of Meteorology’s website shows approaching rain bands. For detailed local conditions, visit the Sydney Weather page.
- The ‘Southerly Buster’ — a sudden cool change arriving from the south — can drop summer temperatures by 10 degrees in an hour.
- Weather systems tracking from the Great Australian Bight bring the majority of rainfall, particularly in autumn and winter.
- Those checking sydney weather 7 day forecast will notice the persistence of maritime influences, with coastal areas often cooler than inland suburbs.
How does Sydney’s weather shift between seasons?
Sydney offers four distinct seasons, with summer producing the most variation in conditions. Those planning ahead often check weather in sydney tomorrow or the broader weekly outlook via the Australia Weather Hub.
- Summer (December to February): average highs of 26°C, humidity rising with northeasterly winds, afternoon sea breeze providing relief.
- Winter (June to August): average highs of 17°C, cooler nights around 8°C, more settled weather with occasional cold fronts.
- For anyone planning extended periods, weather sydney 14 days and weather in sydney 10 days outlooks capture the transition between systems. Extended outlooks such as the 21 day weather forecast sydney are useful for trend awareness but carry lower confidence than shorter-range predictions.
- Those comparing weather melbourne with Sydney will find Sydney’s winters milder and summers more humid overall.
What is the hottest month in Sydney?
January is typically Sydney’s hottest month, with average maximum temperatures around 26°C. Heatwaves can push temperatures above 40°C, though these are usually short-lived and followed by a southerly change bringing rapid cooling.
Does Sydney get much rain in winter?
June is often Sydney’s wettest month, receiving around 132 mm on average. Winter rainfall comes from cold fronts moving up from the Southern Ocean, bringing steady drizzle rather than summer’s short, intense downpours.
How reliable is the sydney weather hourly forecast?
Bureau of Meteorology hourly forecasts for Sydney are most reliable for the first 24 to 48 hours. Beyond that, accuracy decreases gradually. For longer-term planning, weather sydney 14 days outlooks offer useful trends rather than precise predictions.