Denching rain, potentially damaging wind and big swells are expected to Queensland's south east corner later this week, with some parts tipped to receive their entire average February rainfall in just two days.

The Bureau of Meteorology has warned much of the state south of Rockhampton is set to receive the heavy rain on Thursday and Friday, and some parts should brace for flooding.

Meteorologist Bryan Smith said most areas could expect to receive in excess of 100 millimetres of rain across the two days and some areas would receive more than 200 millimetres.

The mean February rainfall for Brisbane is 159 millimetres.