Live NOAA conditions

Know the water
before you go.

Pick a harbor. Get one honest flag, your best window, and a seven-day outlook built from wind, waves, tides, and observations.

Now on iPhone

Boat or Nope is ready to leave the dock.

Wind, waves, tides, weather, observations, and advisories - pulled into one clear call for your boat, with the useful details still in view.

Explore by water

Marine forecasts by bay and sound

Start with the named water, then compare the harbor-level briefings closest to your route.

8,557 U.S. locations

Boating conditions by destination

Wind, wave, tide, and aviation weather sources are bound to every listed location.