A CalMac spokesman said: "The MV Isles of Mull came into contact with the pier in Oban as a result of being struck by a 60 knots (70 mph) gust of wind on her approach.similar problem on Tuesday evening as she was making the approach to Ardrossan.
"Her bow visor and the gangway were both damaged as a result. No-one was injured.
"A detailed assessment of the damage will be carried out and once complete we will be able to establish how long repairs are likely to take."
A CalMac spokesman said: "As the MV Caledonian Isles was entering Ardrossan Harbour yesterday evening, the weather deteriorated suddenly and a 55mph (force 9) gust of wind blew her onto the Winton pier.Caledonian MacBrayne is a Scottish state-owned ferry company and it is not without its own share of problems.
"She was tied up while the Master waited for the wind to drop to allow her to berth, which she did about an hour later, and passengers and vehicles were able to disembark. No-one was injured.
"In the interest of safety the vessel is required to enter dock for inspection and repairs, although damage is not believed to be serious.