Forecasters have issued a yellow weather warning for tomorrow.
The Met Office says high spring tides could mean waves and debris washing over Castletown and Douglas Promenades.
The warning runs from 11.45am to 1.45pm on Tuesday.
There's also a possibility of flooding around inner harbours around the Tongue, North Quay and Lake Road in Douglas and as well as Mezeron Corner and West Quay in Ramsey at high tide at around 12.45pm.
Government reveals TT viewing figures
Final wind farm hearings set for July
Cocaine dealer to appeal 14-year jail term
Infrastructure Minister defends road checks for cat’s eyes work
Beauty brand Charlotte Tilbury launches at Boots this weekend
Isle of Man Energy confirms no gas price rise
Countdown on for World Downhill Skateboarding Championships
Laxey's La Mona Lisa changes hands after 22 years