Yesterday was the wettest day at Coffin Bay since records began there in 1984, with the Eyre Peninsula holiday spot experiencing 76 millimetres of rain over the past 24 hours.

It was also the wettest day for the Nullarbor since 2011 – recording 62mm – and the wettest day at Port Lincoln aerodrome since 1995, where 50mm of rain fell.

Adelaide received just over 13mm of rain overnight, with more showers expected today.

The rain is expected to ease this afternoon, with the weather bureau forecasting showers and a maximum temperature of 25 degrees.

A Bureau of Meteorology rainfall radar image of the 24 hours to 9am.

The weather is expected to improve over the week.

It will be partly cloudy and 24 degrees in Adelaide tomorrow, mostly sunny and 27 on Thursday, sunny and 30 degrees on Friday, and sunny with a top of 35 degrees across the weekend.