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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Insightly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Cartwright, in Sydney’s south‑west, is seeing the conditions shown in the live forecast above — a typical late‑spring mix of mild mornings and warm afternoons. Its inland position, away from the coast, means temperatures here often run a couple of degrees higher than at Sydney Harbour, especially when north‑westerly winds build through the day.
What’s driving today’s weather in Cartwright?
The suburb’s inland location places it under the influence of the same troughs and ridges that affect greater western Sydney. As the live forecast above indicates, a light westerly breeze is likely to shift south‑east later, bringing a touch of coastal moisture. No significant rain is expected in the short term, though afternoon cloud can bubble up over the nearby Georges River valley.
How does Cartwright’s climate differ from coastal Sydney?
Cartwright regularly records overnight lows about 1–2°C cooler than the CBD, thanks to clear skies and open paddocks to the west. Summer maxima can nudge past 40°C when a hot north‑westerly sets in, whereas the coast stays cooler. Conversely, winter mornings are crisp; frost is rare but possible in low‑lying pockets near the river.
Does Cartwright get much rain?
Rainfall is spread fairly evenly through the year, though autumn and early winter tend to be wettest. Summer storms can deliver heavy falls in short bursts, especially when easterly troughs stall over western Sydney.
What’s the coldest month in Cartwright?
July is typically the coolest, with average daily maxima around 16–17°C and overnight minimums dipping to 5–6°C. Frost may occur on clear, calm mornings but is not as common as out towards Camden.
Is Cartwright ever affected by severe weather?
Yes – like much of western Sydney, severe thunderstorms are possible in spring and summer, bringing damaging winds, large hail, and flash flooding in low‑lying areas. Heatwaves are also a concern during prolonged northerly flows.
For broader conditions across the region, check our Australia weather hub and the dedicated Sydney Weather page. If storms are in the forecast, keep an eye on Severe Weather Warning updates.