Sailings to and from Heysham today will go ahead, with this morning's voyage now setting off at a later time.
The Steam Packet Company says the Ben-my-Chree voyage to the Lancashire port due to leave at 8.45am will now set off at 9.30am, with passengers asked to check in no later than 9am.
Meanwhile, the vessel's return to the Island this afternoon at 2.15pm will depart on time with passengers for that crossing asked to check-in as normal.
Police launch appeal after broad daylight attack in Douglas
Yellow weather warning issued for Sunday
Ghost hunters report spectral child's voice in Castletown tea shop
Is this your baby cock in Kirk Michael?
Island retains fairtrade status
MHKs to elect Island's chief minister next month
General election 'professional and transparent', say observers
Manx-Registered tanker hit by fire in Strait of Hormuz