New Zealand's weather can be highly unpredictable. Enjoying the sunshine and a light breeze at home is one thing, but the wind can be twice as strong out on the water.

There’s a big difference between the marine and land forecast so it’s important to check your local marine weather forecast before you head out. And never expect the weather or conditions on the water to stay the same as when you set out. Keep an eye out for unforecasted changes of clouds, wind direction and strength. Marine weather forecasts tell you what the weather is expected to do, but there’s no guarantee it won't get worse.

We've got you sorted with a range of free services to help you keep on top of the weather.

Coastguard app

Get up-to-the-minute weather reports with Coastguard Nowcasting and MetService forecasts, all in one handy app. Download our free Coastguard app today.

Coastguard VHF Radio

Coastguard's Nowcasting service is available continuously via your local Nowcasting channel. We broadcast real-time marine weather information including live observations from Automatic Weather Stations, recreational forecasts, sea areas, tides, navigation warnings and local station notices.

COASTGUARD APP

The Coastguard app features 5-day forecasts,  the real-time weather situation and the ability to make a trip report right from your smartphone. It's got a boatload of handy features for fishos and boaties, you won't want to leave the dock without this game changer in your pocket. Check out the Coastguard app.

What to look out for

Here's the information contained within a typical forecast and weather situation, and what you should look out for.

Tides and swells

Tides matter a lot. When the wind is blowing against the tide, the sea can get much rougher, which is especially challenging for boats under 6 meters in length.
Swells are long waves coming from the ocean. They get higher and more intense as they move into shallower water.
Visibility

Visibility is noted in the forecast when it's expected to be less than 6 miles (10 km).
Crossing a bar

Check the Weather
Check the weather forecast within 12 hours before you head out and keep an eye on the conditions for when you’re due back.
Watch the Wind
If the wind is blowing against the waves, expect rougher seas.
Avoid Low Tide Crossings
Don’t cross at low tide since the bar’s action can be more intense then.
Avoid Ebb Tides
Stay away from crossing during ebb or falling tides, when water is flowing away from the shore.
Always Make a Bar Crossing Report
Let us know when you’re crossing. We’ll keep an eye on you and start a search if you don’t check back in. Read more about making a bar crossing report here.
Have the Right Experience and Knowledge
Only cross a bar if you have the right experience and local knowledge to ensure it's safe both going out and coming back.
Know Your Limits
Know your limits and if in doubt, don’t go out.