Why is it raining so much in Sydney

Why is it raining so much in Sydney might be a question that springs to mind if you have flown half way around the world to avoid the rubbish weather, only to find yourself sitting in the middle of an almighty and very unseasonable deluge!

Sydney is located in New South Wales, Australia, and enjoys a temperate climate with warm summers and mild winters. It is a very popular city destination for tourists who come from all over the world to enjoy the lovely weather and fantastic attractions including the iconic Sydney Opera House and Harbour Bridge.

But no matter how much it might tip it down with rain while you are enjoying a vacation in Sydney, Australia, the vast majority of the time there are not that many rainy days in any given month. The climate is affected by the close proximity of the ocean and as a result, the average temperatures in Sydney are not as high as areas further inland.

Rainfall levels are spread fairly evenly across the year in Sydney. The driest month of the year is usually July with around 56mm of rain and the wettest month of the year is usually March with around 164mm of rain. On average, there does tend to be slightly higher levels of rainfall during the first half of the year and this is believed to be due to the effect on the local climate of easterly prevailing winds. The average annual rainfall is 1217mm, which falls on an average of 138 days per year.

Snow is a rarity in Sydney. The coldest month of the year is July, but the temperature hardly ever drops to freezing levels and the last recorded snowfall in Sydney was way back in 1836. However, an incident of soft hail fall in July 2008 has raised the possibility that the 1836 event was also hail rather than snow.

Although the city is unaffected by tropical cyclones, it is affected by the global El Nino phenomenon. The southern oscillation of El Nino winds can play an important role in Sydney’s weather patterns, often causing droughts, storms and flooding. Sydney is also prone to severe hailstorms and flash flooding, and if you were in Sydney during the great flood in 1986, you will have definitely wondered: why is it raining so much in Sydney! A record 327.6mm of rain fell during a period of 24 hours, which caused major problems as a result.

The summer of 2007 was one of the wettest and coolest since records began, but during the first weeks of February 2010, Sydney experienced some of the highest levels in rainfall for many years as a result of the last remnants of Cyclone Olga and humid northeasterly winds contributing to form an area of extreme low pressure. Heavy rain and strong winds from the weather system knocked power supplies out and caused property damage. It rained over Sydney in biblical proportions for days on end and on 13th February over 65 mm of rain fell overnight.

If you were staying in Sydney at the time, no doubt your lament for many days was: why is it raining so much in Sydney?

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