About SeaJot
SeaJot answers one question: is it worth going to the coast right now? Tide tables, forecast pages and buoy readouts all exist already, but each leaves the reader to assemble an answer from several tabs. This site does that assembly and shows its work.
Where the data comes from
Everything comes from the National Oceanic and Atmospheric Administration — tide predictions and water levels from CO-OPS, forecasts and alerts from the National Weather Service, and wave and water temperature observations from NDBC buoys. Nothing is scraped, purchased or modeled in-house.
How ratings work
An activity is rated Excellent, Good, Fair, Poor or Unavailable — never a number out of a hundred. A score would imply precision that tide and wind data cannot support, and it would hide which factor mattered. Instead each rating names its limiting factor: the single worst relevant condition decides the result, and every factor considered is listed with its threshold. The thresholds are published on each activity page.
When data is missing
Buoys go offline, sensors are removed for maintenance, and some beaches have no wave data at all — a beach inside Puget Sound has no swell and no buoy offshore of it. In every one of those cases SeaJot says so. There are no estimated values standing in for measurements, and a forecast is never labeled as an observation.
Not a safety authority
SeaJot is a planning tool. Active National Weather Service alerts are shown above every rating and are never hidden by a favorable one, but no forecast replaces local signage, lifeguards, or an official advisory. Conditions at the water’s edge change faster than any data feed. Check official sources before you get in.