For the September – November period, rainfall is likely to be above average for most of the eastern half of Australia.
There is an increased chance of unusually high rainfall across much of eastern and central parts of Australia.
The bureau says there is an increased risk of flooding during heavy rainfall on the east coast of New South Wales and south east Queensland following a wetter than usual year in these regions.
Spring can also be the start of severe weather season and a peak time for severe thunderstorms along Australia's east coast. Coastal lows can also bring storms in early spring, increasing the risk of damaging winds, heavy rainfall and flash flooding.
Spring rainfall may provide relief to large parts of Victoria, South Australia and western Tasmania experiencing prolonged dry conditions. However, sustained rainfall is needed to replenish soil moisture and water storages.
The first significant rains of the northern wet season are likely to be earlier than usual for most of Queensland and the Northern Territory but later than usual in Western Australia.
Above average rainfall is likely for most of Victoria, apart from some eastern parts of the state.
Average spring rainfall in recent decades has been between 100 and 300 mm for most of the state, increasing to 400 mm over the Great Dividing Range.
The bureau says daytime temperatures are very likely to be higher than usual throughout much of Victoria.
Warmer than usual nights are very likely throughout the state.
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