
Go or No? Marine Boat Weather
Wind, waves, tides & fishing
0 ratings
Free
About
Go or No turns the marine forecast into a decision.
Instead of making you stitch together wind, waves, and tide tables, it gives you one clear answer: is it a good day to head out — on YOUR boat, today, from your spot?
ONE CLEAR ANSWER
• A 1–10 boat-safety score with a plain GO / CAUTION / NO-GO verdict
• The score adapts to YOUR vessel — powerboat, sailboat, kayak, or other
• Set your length, engines, and horsepower and the score tightens or eases to match
• A kayak needs far calmer water than a big powerboat, and the verdict knows the difference
• A "now vs. later" read, e.g. "Light chop now — choppy by mid-afternoon"
• No black box — tap any verdict to see the why: the reasons, the numbers, and the charts behind it
MARINE CONDITIONS
• Wind speed, gusts, and direction
• Wave and swell height and period
• Water (sea-surface) temperature
• Fog and visibility
• Cloud cover
WEATHER
• Current conditions, hourly, and a 7-day forecast
• Barometric pressure with a rising or falling trend
• UV index, humidity, and sunrise / sunset times
TIDES
• High and low tide times and heights from NOAA (US coastal)
• A tide curve for the days ahead
ANY HARBOR, ANY SPOT
• Search any harbor, town, or beach by name and save it
• Or drop in exact coordinates, or just use your current GPS location
• Keep the places you fish and boat one tap apart and switch between them
BUILT FOR THE HELM
• Dark, glare-friendly design that won't blind you at dawn or burn your eyes at night
• Big type and glanceable cards, made for a one-handed check underway
• Your units, boat, and saved spots stick — set them once
Weather works anywhere in the world. NOAA tides cover US coastal waters.
Free. No account. No ads. No tracking. No sign-up wall.
This app is an advisory planning aid — always check the official NWS marine forecast and use your own judgment on the water.
Data from Open-Meteo and NOAA.
Show more
What's New in Go or No? Marine Boat Weather
1.1.0
July 23, 2026
New design





