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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Glen Alpine, a suburb in Sydney’s Macarthur region near Campbelltown, typically experiences a temperate climate with warm summers and cool winters. For current conditions including temperature, humidity and wind, refer to the live forecast above.
What is the typical climate in Glen Alpine?
Glen Alpine sits in Sydney’s south-west, about 60 metres above sea level. Summer afternoons often reach the high 20s Celsius, while winter mornings can drop to around 5°C. Rainfall is spread fairly evenly across the year, with occasional thunderstorms in the warmer months – a pattern common across the broader Campbelltown weather region.
How does Glen Alpine weather compare with Sydney’s coastline?
Because Glen Alpine is inland, it tends to be a couple of degrees cooler than the coast on summer nights and slightly warmer during winter days when skies are clear. This inland effect means the suburb often sees less coastal cloud and more direct sunshine than places near Sydney Harbour. For the latest city-wide conditions, check the Sydney weather page; for a state overview, see Australia’s weather hub.
Does Glen Alpine get much rain?
Annual rainfall is about 800–900 mm, similar to much of the Sydney basin. Rain falls in all seasons, with a slight peak in late summer and autumn from east-coast lows and storms.
When is the best time to visit Glen Alpine?
Spring (September to November) and autumn (March to May) are the most comfortable, with mild days and lower humidity. Summer can be hot, especially in January, but the nearby parks remain pleasant in the morning.
Is Glen Alpine affected by bushfire weather?
Like many south-west Sydney suburbs, Glen Alpine can experience elevated fire danger on hot, windy days, particularly from October to March. Always check the severe weather warning page and the local Rural Fire Service for current advice.