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Interislander - Cook Strait Ferries

Sailing Conditions

Sailing Conditions

Please note:

Our sailing condition information is indicative and averages swell height over a day. Conditions on your Cook Strait crossing may differ. We do update customers when the weather deteriorates and impacts on sailings.

Check the weather before you come onboard


Cook Strait is notorious for being one of the most changeable stretches of water in the world. It can change from calm or light swell to rough in a matter of hours. Our sailing condition indicators are to give you an idea of conditions.

You can find more detailed weather and swell information on:

Many people are worried about getting seasick during their Cook Strait crossing that's why we are giving an indication of swells, or how rough it will be. We also have useful information on seasickness.

Keep in mind that sailing through Wellington Harbour and the Marlborough Sounds are calmer than Cook Strait itself and most days are perfect for enjoying the view. 

Did you find this information useful? We would like your feedback.

Today

Today

Calm
0.5 metre swells
Northeasterly winds

Three day forecast

Sunday 23 June

Sunday 23 June

Calm
0.5 metre swells
Northeasterly winds

Monday 24 June

Monday 24 June

Calm
1.1 metre swells
Northwesterly winds

Tuesday 25 June

Tuesday 25 June

Calm
1 metre swells