Forecasters have issued a yellow weather warning during high tide later today.
The warning, for coastal overtopping, runs from 10.30am until 2.30pm.
Ronaldsway Met Office says winds of up to gale force could drive waves over exposed roads at high tide.
Areas most at risk include Shore Road in Rushen, and promenades in Castletown, Douglas, Laxey and Ramsey.
Weather warning for snow tonight
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Gales put two ferry sailings at risk tonight
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Warning issued over icy roads
High ground could see 4 inches of snow on Saturday night
Mountain Road unlikely to open before Monday
Yellow warning for freezing temperatures tonight