An hourly bite forecast for the water you fish. It reads live weather, water temperature, and the position of the sun and moon, then scores every hour from 0 to 100 for the species you pick. Use it to decide when to go.

Each hour is scored from the conditions at that time of day: how much light there is (dawn, dusk and after dark), water temperature against the range your species actually feeds in, the barometric trend, wind, and cloud cover. Sun and moon feeding windows are folded in too. The mix is tuned per species, and your catch log adjusts it as you log trips. Tap “Why this score?” on the forecast to see which conditions are helping and which are hurting right now.

Because some days really are poor, and a forecast that always reads “good” is not worth opening.

Less directly than the folklore suggests. Ten feet of water adds about a third of an atmosphere, while even a dramatic storm swing is a few percent of one, so a fish that moves up two feet feels more change than any front delivers. What does hold up is that falling pressure arrives with the rest of the weather: wind, cloud, low light, and stirred up food. BiteWatch watches the trend for that reason, and leans on it hardest in shallow water.

In freshwater the lunar effect is weak. Most apparent solunar hits are really the window landing on dawn or dusk, which the forecast already accounts for. BiteWatch still tracks the windows and flags when one overlaps a twilight edge.

Weather from Open-Meteo, water temperature from the USGS water data API, your county from the FCC area API, and New York fishing rules from NYSDEC. Sun and moon positions are calculated on your device. All free, keyless sources, with no login and no server.

Yes. Your catch log, saved spots and settings stay in this browser, on this device. Nothing is uploaded, there is no account, and there is no tracking. Export and Import (JSON) is how you move them to a new phone. If cloud sync is ever added it will be opt in, and anything shared will blur your exact coordinates.

Because they are the half that makes the rest mean anything. If you only log the days you catch fish, the app learns that every hour you fish is a good hour. Blanks are what let it tell a genuinely hot window from one you simply fish often. That is what the one tap “No catch” button is for.

It is a planning aid, and the starting weights are estimates rather than measurements. Your own catch log is what corrects them, which is why logging pays off over a season. Water temperature comes from the nearest gauge when one is close enough, and otherwise is estimated from recent air temperature and labelled that way.

Size limits, seasons and creel limits are mirrored from NYSDEC pages, New York only for now, shown for your county with water specific rules where they exist. It is a convenience copy and it can go out of date, so always confirm at the DEC link before keeping fish.