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Chinook Bay (Idaho) — a popular fishing spot. About 2 ha in area. This is a sea water — its bite forecast is a marine one, computed apart from rivers and lakes. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.
Other nearby places to fish
Other nearby waters
The basin is close to regular: the bank runs smooth and natural cover is scarce, so fish hold to the few anomalies — inflows, drop-offs and weed edges. Smaller than 17 of the 19 waters nearby.
The water is sheltered: there is almost no fetch, so wind stirs it up very little.
Idaho: the months when each species peaks and when it goes quiet. The current month is outlined.
| Fish | January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steelhead | peak | peak | peak | active | fair | active | peak | peak | peak | active | peak | peak |
| Brown trout | slow | slow | slow | slow | active | peak | peak | peak | active | active | fair | slow |
| Chinook salmon | slow | slow | slow | slow | active | peak | peak | peak | active | fair | slow | slow |
Look for structure — reefs, flats, channel edges; work them slowly near the bottom.
Chinook Bay — Tuesday, October 20
The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably. Peak 08:00–10:00 and 18:00–20:00.
The computed water temperature is around 43 °F — inside the 43–63 °F comfort range for Brown trout, so baseline activity is high.
Brown trout works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is rising 0.18 inHg over the day — the bite usually settles down after a rise.
One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.
October is an active season for Brown trout here.
These are the same values the bite curve above was computed from. How the forecast works
Cloudy · feels like +44°
The day is 3 min shorter than yesterday.
Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.
Geomagnetic fieldG1 geomagnetic storm, Kp 4.7
Kp index — NOAA data. Not part of the bite score: catches show no link between geomagnetic storms and the bite.
The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.
What are solunar periods?Look for structure — reefs, flats, channel edges; work them slowly near the bottom.
Chinook Bay — Tuesday, October 20
The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably. Peak 08:00–10:00 and 18:00–20:00.