A beacon light at North Mole "tipped over" in the storm on Sunday night.
The beacon guides boats in at night and because "there's not too many of those" it's not crucial said port manager John Blaikie.
"It doesn't matter so much in the daytime. There are two land marks in by the wharves that can be seen for up to two to three miles out."
Mr Blaikie said because the beacon tipped over rather than broke off they would have to look at the base, which is 100 years old and may need replacing.
The port management will check Maritime Safety regulations and new technology available to see what they will replace it with.