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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Down Under Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Belmore’s weather today, as the live forecast above shows, is typical for this inner-south-west Sydney suburb: mild-to-warm conditions influenced by the coastal trough and the inland western plains. Being roughly 12 kilometres from the coast, Belmore often sees slightly hotter summer peaks and cooler winter overnight lows than the CBD, with afternoon sea breezes arriving later in the day.
What’s the typical seasonal pattern for Belmore?
Summer (December–February) brings humid, changeable days with thunderstorms possible from the west, while autumn and spring offer the most stable, sunny weather. Winter (June–August) is cool and fairly dry, though frontal systems can produce several days of grey skies and light rain. Belmore’s rainfall is spread fairly evenly through the year, with a slight peak in late summer and early autumn due to east-coast lows.
How does Belmore’s inland location affect its weather?
Sitting about 20 metres above sea level on the Cumberland Plain, Belmore misses the direct moderating effect of the ocean. This means summer maxima often reach 2–3°C higher than at Bondi, and winter mornings can dip below 5°C when skies clear. The suburb also sits in a rain shadow relative to the coastal escarpment, so heavy falls are less frequent than in the eastern suburbs.
Does Belmore get hot enough for a total fire ban?
Yes, on days with strong westerly winds and temperatures above 35°C, a total fire ban may be declared for the Greater Sydney Region, including Belmore. Check the NSW RFS website for current warnings.
Is Belmore prone to flash flooding?
Belmore’s urban drainage can be overwhelmed during intense summer storms, especially near Cooks River and its tributaries. Heavy rain in a short period can cause localised street flooding, so drivers should avoid forbidden water crossings.
When is the best time to visit Belmore for outdoor events?
March–May and September–November offer the most comfortable temperatures and lowest rainfall probability. Average highs are 22–26°C, with low humidity and plenty of sunshine—ideal for local parks and the Belmore Sports Ground.
For a broader outlook on the region, see our Sydney Weather page or the national Australia Weather Hub. If you’re comparing forecasts, note that AccuWeather Belmore may differ slightly from the Bureau’s data; always check the BOM for official warnings. The sydney weather patterns that affect Belmore are well-summarised in our Sydney forecast.