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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Current Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Leonay’s weather today, as shown in the live forecast above, is typical of the lower Blue Mountains foothills: mild mornings giving way to warm afternoons, with a moderate chance of a late shower or thunderstorm moving in from the west.
What makes Leonay’s weather different from nearby suburbs?
Leonay sits on the Nepean River floodplain, just east of the Blue Mountains escarpment. This position means it often runs a couple of degrees warmer than Katoomba weather but can be noticeably cooler and breezier than Penrith weather when a southerly change pushes up the river valley. The local topography also funnels afternoon sea breezes, which can drop the temperature sharply in summer.
When is the best time to visit Leonay?
Autumn (March to May) offers the most settled conditions, with warm days and cool nights. Spring can bring gusty westerly winds, while summer afternoons often see thunderstorms develop, sometimes severe. For the most reliable outdoor plans, check the severe weather warning page before heading to the river.
Does Leonay get much rain compared to Sydney?
Leonay averages about 700–800 mm annually, slightly less than central Sydney weather. Most rain falls in late summer and early autumn, often from afternoon thunderstorms rather than prolonged fronts.
Is flooding common in Leonay?
Low-lying parts near the Nepean River can flood after heavy, sustained rain upstream. The Bureau of Meteorology issues flood watches for the Nepean when catchments are saturated. Always check local warnings before planning activities near the river.
How does Leonay’s weather compare to the upper mountains?
Leonay is typically 5–8°C warmer than Katoomba, with far less fog and frost. While the mountains can be shrouded in cloud, Leonay often stays clear, making it a sunnier option for a day out from the city.