Sydney has a temperate maritime climate; summers are hot while winters are mild and rarely, if ever, see cold temperatures.Sydney’s climate is largely dictated by its coastal position and the temperate seas that surround it. This means temperatures never get cold as they can in other parts of the country. Also, the scorching temperatures for which the inland deserts are famous remain absent in Sydney due to the cooling sea breezes, and rainfall is much higher and more frequent.Rainfall can happen year round, although winter and spring are slightly dryer than summer and autumn. Rain usually falls in sudden but short storms which are often localised meaning one part of the city is dry while another is very wet.
In general summers in Sydney are hot and sunny but with high rainfall. Average daily highs during summer are a very agreeable 26°C, while night-time temperatures don’t fall below the high teens. This is the time to hit the beach and bask in the glorious weather for which Australia has become famous. Although most days will see pleasant temperatures in the high 20s, there are days when the sea breeze fails and mercury soars up to the high 30s and even beyond. Storms with heavy rainfall are not infrequent. They are mostly brief, however, and the sun soon shines again.
Autumn enjoys pleasant temperatures. March is only slightly cooler than the peak summer months, while April and May still enjoy average daily highs in the low 20s. Although day time temperatures are very agreeable, evenings do start to get a little cool and May can see night time temperatures falling towards 10°C. Autumn is on average the wettest time of the year. As with the rest of the year, heavy storms account for most of the rainfall and there can again be long periods without any rain.
Winters can generally be said to be mild and fairly dry. Average daily highs are at their lowest in July, but even then they are at 17°C. Temperatures touching 20°C on a good winter’s day are not uncommon. Night time temperatures can become quite chilly, averaging 8°C in July. Last year’s lowest recorded temperature in the centre of Sydney was just below 4°C. Winter is the driest time of year in Sydney, though downpours are still possible.
Spring is a time of great weather. It is relatively dry and temperatures quickly increase. Daytime highs rise into the 20s for the entire season. The nights quickly warm and by mid-Spring temperatures usually remain above the mid-teens.
The slightly cooler temperatures compared with summer time make it good for getting about in the city especially if you want to cram in a lot of sightseeing.