Forecaster Peter Blake said 101 millimetres of rain fell in Bendigo during April, with the average 30 millimetres.

He said the rain fell within seven days. 

"There were two events," he said. 

"(On the) 9th, 10th and 11th there was 75 millimetres and there was another 25 millimetres on the last day of the month.

"It was good.

"It put some water in the dams and wet the catchments so that the next rainfall is run off."

Mr Blake said it was one of the wettest Aprils in Bendigo according to data taken from the past 20 years. 

"That was pretty much indicative across the whole northern country where there was good rainfall around in those events," he said. 

"It was a good rainfall for the month in general." 

Mr Blake said temperatures in Bendigo for April were close to average. 

"Despite that we had a reasonably warm start to the month and then it cooled off a bit later," he said. 

"But April is such a transient period.

"You are coming out of summer or late summer, and you look now and we are in a hint of winter." 

Mr Blake said temperatures in Bendigo during May were expected to be close to average. 

He said Bendigo had recorded only a couple of millimetres of rainfall during the first two days of May. 

"You might pick up to five millimetres over the next five days (in Bendigo) but probably more southern Victoria (is where the rain will be)," he said. 

Festival-goers heading to Groovin The Moo at the Bendigo Showgrounds should wear gumboots with a shower or two, and a top of 13 degrees predicted for Saturday. 

Sunday will be a top of 15 degrees, with a possible shower predicted. 

There will be showers on Monday and a top of 14 degrees, with the rest of the week expected to be sunny. 

Tuesday is expected to be a top of 14 degrees, Wednesday 15 degrees, Thursday 16 degrees and Friday 17 degrees. 

Visit www.bom.gov.au for more information about the forecast.