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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast 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 ·
Mosman enjoys a temperate coastal climate with mild winters and warm summers. The live forecast above shows today’s conditions, shaped by its harbour-side location. Expect moderate rainfall year-round with sea breezes moderating temperatures.
How does Mosman’s location influence its weather?
Mosman sits on Sydney’s Lower North Shore, directly on the harbour. This means sea breezes often keep summer afternoons cooler than inland suburbs, while winter nights are less harsh due to the water’s warmth. The area also experiences occasional southerly busters – sudden cool changes that can drop temperatures sharply.
What should you know for planning your visit?
For the weather in Mosman tomorrow or over the next week, the live forecast above gives the most current information. Longer-term trends show that the best months are typically March to May and September to November, when humidity is lower. If you need mosman weather hourly details, check the forecast’s hourly breakdown for wind and rain timing.
What is the weather in Mosman 10 days from now?
For weather in Mosman 10 days out, use the 10-day tab on the live forecast above. While accuracy declines after 7 days, models like the GFS and ECMWF provide a useful outlook for planning events.
How reliable is the mosman weather radar for rain?
The mosman weather radar from the Bureau of Meteorology covers the Sydney region, showing real-time rain intensity. It’s excellent for tracking showers moving across the harbour into Mosman.
Does Mosman get much wind?
Yes, especially in spring. The harbour funnel effect can strengthen afternoon sea breezes. For mosman weather 30 day forecast trends, average wind speeds are around 10–20 km/h, with occasional stronger gusts during storms.
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