THE likelihood of El Nino developing during summer has reduced and neutral weather patterns are expected to continue into next year.

In issuing its summer outlook today, the Bureau of Meteorology said El Nino would be kept at bay but flagged higher than normal summer temperatures for much of southern Australia.

"The chances that the summer maximum temperature will exceed the long-term median maximum temperature are above 6 per cent over far northern Australia, southern and western WA, southern SA, southern NSW, Victoria and Tasmania," the outlook said.

Meteorologist Andrew Watkins said it looked like Victorians were in for warmer days but possibly cooler nights throughout summer.

"All of Victoria, South Australia and Tasmania is looking at warmer than normal day time temperatures," Mr Watkins said.

"There is a 70 to 75 per cent chance of getting above normal temperatures but night time temperatures are slightly on the cool side."

Mr Watkins said there was not a strong push towards wetter or dryer conditions for Victorians this summer.

He said this meant it was more likely to be a summer with average rainfall.