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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 ·
Based on the live forecast above, Mount Colah is seeing temperatures typical of late autumn in Sydney’s northern suburbs—overnight lows near single digits and daytime highs in the mid-teens Celsius. This marks a shift toward the cooler, drier winter pattern the area receives from May to August.
What is the typical climate in Mount Colah?
Mount Colah sits about 200 metres above sea level in the Hornsby Shire, giving it a humid subtropical climate with slightly cooler nights than the Sydney basin. Summer maxima average around 27°C, winter minima drop to about 6°C, and annual rainfall is roughly 1,100 mm—spread fairly evenly but with a slight winter-spring wetter bias. The elevation means fog and low cloud are more common in the cooler months, especially around dawn.
How does the local geography affect daily conditions?
The ridge line and surrounding bushland of Ku-ring-gai Chase National Park to the east and Berowra Valley to the west funnel winds and can trap moisture. This often makes the area a few degrees cooler than central Sydney, particularly in the morning. Local forecasts—such as those from Sydney weather pages—need to account for this microclimate. Checking the 10-day forecast or sydney weather radar for approaching fronts is useful before planning outdoor activities.
Does it ever snow in Mount Colah?
Snow is extremely rare—the area is too low and coastal. Frost occurs a few mornings each winter, but significant snowfall has not been recorded in modern times. For the latest conditions, check bom mount colah readings.
How reliable is the 14-day forecast for Mount Colah?
Like most inland suburbs, a mount colah weather 14 day forecast is useful for broad trends but day-to-day accuracy drops after about day 7. For short-term plans, rely on the 7-day outlook from the Bureau of Meteorology.
Where can I find the best local weather data?
The Bureau of Meteorology’s automatic weather station at Hornsby (about 3 km south) provides the most relevant readings. For hourly updates and rainfall totals, weather in mount colah 10 days charts on Australia weather hub are a good starting point.