He said police were using as many search techniques as the weather will allow.
But weather conditions are limiting the police's options.
Since 6.30am today the search was being carried out by the helicopter, the Navy vessel HMNZS Otago, with a rigid hulled inflatable boat, and a local fishing boat.
Rix said the weather's not likely to improve for a couple of days, but when it does police will likely deploy the National Dive Squad.
Police are using this as a reminder for people to check the conditions before heading out on the water.
Rix said people need to make sure they plan properly before they take the risk of going into the water.
He said checking weather forecasts was especially important.