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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Oz Briefly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for Mosman’s current temperature and conditions, then use those numbers to decide whether you need a jacket or sunscreen – the coastal breeze off Middle Harbour often drops the effective temperature by a couple of degrees.
What is the weather in Mosman tomorrow?
The live forecast above shows tomorrow’s high and low. Mosman’s coastal position means mornings can be noticeably cooler than inland suburbs, with a sea breeze typically building by late morning. For a detailed look at the next 24 hours, refer to the Bureau of Meteorology’s local forecast – the Sydney weather page includes the same data for the broader region.
Where can I find the Mosman weather radar and hourly updates?
The BOM’s Terrey Hills radar (Sydney’s main radar) covers Mosman and shows approaching rain. For hourly breakdowns, scroll through the live forecast above – it includes wind speed, humidity and UV index for the next 48 hours. You can also check our 10-day forecast page for a quick overview of conditions in Mosman 10 days out.
Is the Mosman weather forecast reliable for the weekend?
Bureau of Meteorology forecasts are highly accurate for the next three days, with confidence tapering beyond seven. For weekend plans, check the weather in Mosman 14 days for a general trend, then confirm closer to the date.
How does Mosman’s weather differ from inland Sydney?
Mosman typically runs 1–3°C cooler than Parramatta or Penrith in summer due to the harbour breeze. In winter, the maritime influence keeps nighttime temperatures milder – frost is extremely rare in Mosman.
Can I get a Mosman weather 30 day forecast?
Long-range outlooks exist but skill decreases sharply after two weeks. The BOM’s climate outlook provides broad probabilities for temperature and rain. For daily detail, stick to the 7–10 day window.