A clean up is underway in Samoa's capital, Apia, after extensive flooding caused by the highest rainfall ever recorded by the local weather bureau.

The 108 millimetres over the last four days came from a low pressure trough that emerged south of the country.

Most businesses were closed, schools were dismissed early and many cars broke down in the floodwaters.

Police took emergency action by blocking roads heading into flooded areas

Forecasters say there is no need for Samoans to be concerned about a tropical cyclone.