Parts of low lying areas in Samoa's capital, Apia, were flooded this morning as the Vaisigano River topped its banks dumping debris and logs on the city's waterfront.
The Meteorology Office at Mulinuu has issued a warning for heavy rain and possible floods.
Police spokesperson Su'a Muli'aga Tiumalu said police and the fire rescue have been sent to advise families living near rivers to move to higher ground.
The latest weather bulletin said a trough of low pressure is lying just north of Samoa.
Further west, in New Caledonia an alert is still in force as the territory is being hit by strong winds, most notably in the southern province and the Isle of Pines.
In Wallis and Futuna, internal flights have been cancelled because of inclement weather.
In Fiji, the weather has improved and the flood waters have begun receding.
The Queen and Kings Road have reopened.