Johns Folly Bay, St. John Island Marine Forecast
Puerto Rico · 18.317°, -64.702° · National Weather Service
Next 24 hours
7-Day Marine Outlook
Wind, temperature, and conditions for Johns Folly Bay, St. John Island.
About the marine forecast for Johns Folly Bay, St. John Island
This is the National Weather Service forecast for Johns Folly Bay, St. John Island (Puerto Rico), 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 Johns Folly Bay, St. John Island? Pair this with the Johns Folly Bay, St. John Island tide chart so you've got the water and the weather in one look.
Frequently asked
What is the wind forecast for Johns Folly Bay, St. John Island today?+
Today at Johns Folly Bay, St. John Island, expect wind from the ESE at 17 mph, with chance showers and thunderstorms. See the hourly breakdown above for how it changes through the day.
Where does this Johns Folly Bay, St. John Island marine forecast come from?+
It's the official National Weather Service point forecast for Johns Folly Bay, St. John Island'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 Johns Folly Bay, St. John Island?+
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 Johns Folly Bay, St. John Island chart, and routes you around the shallows. Free to try for two months on iOS.