The official death toll stands at 13 but is likely to rise.
Runoff from the rain sent rivers surging and flooded many homes. The storm felled trees across the country and debris has blocked streets throughout the capital.
In Petionville, a hillside neighbourhood south of Port-au-Prince, a concrete house slid down a ravine and crashed into several smaller houses.
'We are sure there are more bodies. We're waiting to see just how many bodies there are,' Petionville Mayor Claire Lydie Parent told Associated Press.
The storm has saturated much of the Caribbean in recent days.
Flooding has been reported in neighbouring Dominican Republic as well as in Jamaica, Puerto Rico and the US Virgin Islands.
Authorities have attributed one death in the Dominican Republic and one in Jamaica to the weather.
The week-long period of rain has worsened misery for tens of thousands of people living in tent-and-tarp settlements that sprung up after the devastating 2010 January earthquake in Haiti.
Aid workers have warned that the wet weather could worsen a cholera outbreak that has taken more than 5,300 lives since October.
Director of Haiti's Civil Protection Department, Marie Alta Jean-Baptiste, said the 13 deaths recorded so far were people who either drowned or died in mudslides.
more detail
http://www.rte.ie/news/2011/0608/haitiflood.html
