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Bay Loch Long (Argyll and Bute) — a popular fishing spot. About 32.7 km² in area. Close by — Helensburgh, Inveraray and Rothesay. This is a sea water — its bite forecast is a marine one, computed apart from rivers and lakes. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.
Nearest towns and cities
Other nearby places to fish
Other nearby waters
The shoreline is heavily indented — bays, points and spits. Look for pike at the mouths of the bays and on the drop-offs behind the points. The largest water around: all 10 neighbours are smaller.
The wind builds its wave along the north — south axis — 16 mi of open water; along west — east there is only 7 mi. When it runs down the main axis, the calm water sits against the bank it blows from, while the wave and the silt go to the far one — and the fish follow them there to feed.
Argyll and Bute: 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Conger eel | slow | fair | active | peak | peak | active | active | peak | peak | peak | active | fair |
| Thornback ray | slow | fair | active | peak | peak | active | active | peak | peak | peak | active | fair |
| Atlantic cod | peak | peak | active | fair | slow | slow | slow | slow | active | peak | peak | peak |
| Atlantic mackerel | slow | slow | fair | active | peak | active | active | peak | peak | peak | fair | slow |
| Ballan wrasse | slow | slow | fair | active | peak | active | active | peak | peak | peak | fair | slow |
| European eel | slow | slow | fair | active | active | active | active | peak | peak | peak | fair | slow |
| European sea bass | slow | slow | fair | active | peak | active | active | peak | peak | peak | fair | slow |
| Flounder | slow | slow | fair | active | active | active | active | peak | peak | peak | fair | slow |
| Grey mullet | slow | slow | fair | active | active | active | active | peak | peak | peak | fair | slow |
| Pollack | slow | slow | fair | active | peak | active | active | peak | peak | active | fair | slow |
| Atlantic salmon | slow | slow | fair | active | peak | peak | active | active | active | fair | slow | slow |
| Brown trout | slow | slow | fair | active | peak | peak | peak | active | active | slow | slow | slow |
| Plaice | slow | fair | active | peak | peak | peak | active | active | fair | fair | slow | slow |
| Whiting | peak | active | fair | fair | slow | slow | slow | fair | active | peak | peak | peak |
Wednesday, October 21
Look for structure — reefs, flats, channel edges; work them slowly near the bottom. The water's cold — fish it more delicately and slowly.
Loch Long — Wednesday, October 21
The bite is strong — fish are active. Pressure is dropping — this usually boosts the bite. Peak 08:00–10:00 and 18:00–19:00.
The computed water temperature is around 11 °C — inside the 4–12 °C comfort range for Atlantic cod, so baseline activity is high.
Atlantic cod works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is rising 4 hPa 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 peak season for Atlantic cod here.
These are the same values the bite curve above was computed from. How the forecast works
Open-Meteo Marine model, grid cell 2.4 mi from the waterbody. Values are daily means.
Cloudy · feels like +6°
The day is 5 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. The water's cold — fish it more delicately and slowly.
Loch Long — Wednesday, October 21
The bite is strong — fish are active. Pressure is dropping — this usually boosts the bite. Peak 08:00–10:00 and 18:00–19:00.