Castle Islands, Duncan Canal Marine Forecast
Alaska · 56.643°, -133.152° · National Weather Service
About the marine forecast for Castle Islands, Duncan Canal
This is the National Weather Service forecast for Castle Islands, Duncan Canal (Alaska), covering wind, wave height, temperature, and conditions over the coming week. Wind and seas are what make or break a day on the water, so start there. Remember that gusts, not the average, are what knock you around, and that wind blowing against the tide stacks the seas up steeper than the numbers suggest. Wave height here is the significant wave height, so some individual waves come through taller.
Planning a trip out of Castle Islands, Duncan Canal? Pair this with the Castle Islands, Duncan Canal tide chart so you've got the water and the weather in one look.
Frequently asked
What is the wind forecast for Castle Islands, Duncan Canal today?+
The wind forecast for Castle Islands, Duncan Canal updates hourly from the National Weather Service — see today's outlook above.
Where does this Castle Islands, Duncan Canal marine forecast come from?+
It's the official National Weather Service point forecast for Castle Islands, Duncan Canal's coordinates, covering wind, temperature, and conditions for the next 7 days. It's the same data marine forecasts are built on.
Is it a good day to go boating at Castle Islands, Duncan Canal?+
Check the wind first — it's what makes or breaks a day on the water — then the conditions and any advisories. Match the forecast to your boat and experience, tell someone your plan, and always leave yourself a way back.
See the wind on your chart
Pathr paints live wind, waves, and radar right on the Castle Islands, Duncan Canal chart, and routes you around the shallows. Free to try for two months on iOS.