The aftermath of Tropical Cyclone Yasi [GALLO/GETTY]

The weather in parts of Australia has been rather unseasonable during the austral spring, so far, with rather chilly and wet conditions in the east of the country.

It has been quite a cool start to October in Sydney. According to Australian weather organisation, Weatherzone, it has been the coolest start to October since 1966. Today is the first day temperatures have reached 25 degrees Celsius so far this month. The only other years when it took so long to reach the 25 degree mark were 1864, 1869 and 1905. 

The changeable weather has been the result of a northerly track by the jet stream, but as the jet becomes displaced southwards over the next few days, this will allow a build of pressure in the interior and a subsequent rise in temperatures.

Sydney is certainly likely to see quite a change during the remainder of the month, with daytime temperatures reaching at least 25 degrees and possibly as high as 33 degrees by Monday.

The winds blowing from the interior have also brought about quite a change to Tasmania which, on Wednesday, had its warmest day since last summer. Hobart airport had a maximum temperature of 29 degrees, making it the warmest day there since January and Hobart city recorded 29.4 degrees making it the hottest October day there in three years. But the warmest place in Tasmania was Bushy Park in the Upper Derwent, where the top temperature of 30 degrees was around 12 degrees above average.

Further north, a trough lying over the Coral Sea has resulted in some very heavy rainfall. Innisfail in northern Queensland experienced more than 140 millimetres of rain in just 24 hours on Wednesday, although that trough has now weakened and the outlook for the remainder of the week looks much drier and warmer.

Queenslanders should perhaps make the most of any better weather because in other weather news, a collaboration of weather services has predicted a tropical cyclone season of ‘above average’  activity. The season, which runs from November to April, is predicted to be less active than average in many parts of the Pacific, but the area around North Queensland will be an exception.

Source: Al Jazeera