Wild weather has forced more people from their homes in the Wellington region

The capital's been lashed by heavy rain and gale-force southerly's overnight.

The Porirua City Council's planning for a busy day ahead, and will reactivate its Emergency Operations Centre at 9am.

Two houses were evacuated in Whitby last night after part of a bank collapsed into one of the homes.

Fire and Emergency says it's dealt with 21 weather-related call-outs overnight, including flying trampolines, fallen trees and surface flooding.

It follows severe flash flooding in Plimmerton on Sunday, which forced 15 families to flee their homes.

All harbour ferry sailings have been cancelled in Wellington this morning and flights could face disruption due to the strong winds.