Fort Johnson Marine Forecast
South Carolina · 32.752°, -79.898° · National Weather Service
Next 24 hours
7-Day Marine Outlook
Wind, temperature, and conditions for Fort Johnson.
About the marine forecast for Fort Johnson
This is the National Weather Service forecast for Fort Johnson (South Carolina), 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 Fort Johnson? Pair this with the Fort Johnson tide chart so you've got the water and the weather in one look.
Frequently asked
What is the wind forecast for Fort Johnson today?+
Today at Fort Johnson, expect wind from the SW at 12 to 17 mph, with slight chance showers and thunderstorms then mostly sunny. See the hourly breakdown above for how it changes through the day.
Where does this Fort Johnson marine forecast come from?+
It's the official National Weather Service point forecast for Fort Johnson'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 Fort Johnson?+
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 Fort Johnson chart, and routes you around the shallows. Free to try for two months on iOS.