Jersey Met and the Coastguard are issuing an orange tide warning for 27 and 28 October.
Islanders are being asked to be cautious when travelling on coastal roads as there may be flooding.
The worst affected areas are on the south coast, with waves expected to breach the sea wall.
Motorists could see Havre Des Pas and Victoria Avenue closed as a result.
At 6:18 pm this evening (27 October) high water will reach 11.1 metres, as well as tomorrow morning (28 October) at 6:42 am.
Jersey Coastguard has reminded people in a post on social media that almost half of people who drown in the UK do not intend to go in the water.
"If you're considering going close to the coast during high tide, we recommend you dress appropriately, wear high viz, and let someone know where you are."
New Highlands head trained as Electrical Engineer before 21-year education career
The Boat Show is back at St Helier Marina
'Partnership Leads' appointed of new school grouping system
Businesses to get more money towards cost of training staff
Andium marks record year for new homes in Jersey
Princess Anne opens Jersey Zoo gorilla enclosure
Tarifa Jet and Caesarea Trader return to service
Jersey Post returns to profit
