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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast 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 ·
Mulgoa’s weather is shaped by its position on the western edge of Sydney’s urban area, where summer heat builds more intensely than near the coast and winter mornings can be noticeably cooler. The live forecast above gives the immediate conditions; the key takeaway is that Mulgoa often runs a few degrees warmer than central Sydney in summer and cooler in winter.
What makes Mulgoa’s climate different from Sydney’s?
Mulgoa sits about 55 kilometres west of the Sydney CBD, far enough inland to miss the moderating influence of the ocean. This means summer maximums regularly climb into the high 30s Celsius, while winter minimums can drop below 5°C. The area also receives less coastal cloud, so sunny days are common year-round. For a broader picture of how the city compares, see our Sydney weather page.
How does the local geography affect conditions?
The Nepean River runs nearby, and the surrounding Cumberland Plain allows cold air to pool on clear winter nights, producing frost in low-lying paddocks. In summer, afternoon thunderstorms are frequent, often developing over the Blue Mountains to the west and moving across Mulgoa. For severe storm updates, check our severe weather warning page.
Is Mulgoa hotter than Penrith?
Mulgoa and Penrith share a similar inland climate, with Penrith often recording slightly higher summer maximums due to its more built-up urban heat island effect. Both are among Sydney’s hottest suburbs in summer.
Where can I find a Mulgoa weather 14 day forecast?
Reliable 14-day outlooks for Mulgoa are available from the Bureau of Meteorology and third-party sites like Weatherzone and WillyWeather. These longer-range forecasts are best used as a general trend guide, not a day-by-day certainty.
Does Mulgoa get fog?
Yes, particularly in autumn and winter. The Nepean River valley and surrounding farmland produce radiation fog on calm, clear nights, which can linger until mid-morning before burning off.