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River Isla (Perth and Kinross) — one of the area's fishing spots. About 25 km long. Flows into River Tay. Nearby towns: Coupar Angus, Dunkeld and Perth. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.
Nearest towns and cities
The course meanders heavily: the current digs a pool on the outside of every bend and builds a bar on the inside. Those pools under the undercut bank are where pike typically sits.
Other nearby places to fish
Other nearby waters
Perth and Kinross: 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perch | active | active |
Wednesday, October 21
Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses. The water's cold — fish it more delicately and slowly.
River Isla — Wednesday, October 21
The bite is moderate — fish feed in short bursts. A thunderstorm is possible: activity rises before the front and drops after. Peak 09:00–10:00 and 18:00–20:00.
The computed water temperature is around 8 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.
Atlantic salmon works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is flat: it moves no more than 1 hPa over the day, so the weather isn't shifting today's bite.
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 Atlantic salmon here.
These are the same values the bite curve above was computed from. How the forecast works
Drizzle · feels like +7°
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?Blue check: this species appears as a catch in reports for this waterbody.
Caught here in 1 fishing report.
Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses. The water's cold — fish it more delicately and slowly.
River Isla — Wednesday, October 21
The bite is moderate — fish feed in short bursts. A thunderstorm is possible: activity rises before the front and drops after. Peak 09:00–10:00 and 18:00–20:00.
| active |
| fair |
| active |
| active |
| active |
| active |
| active |
| peak |
| peak |
| Dace | slow | slow | fair | active | peak | peak | active | active | peak | peak | active | fair |
|---|
| Grayling | slow | slow | fair | active | peak | peak | active | active | peak | peak | active | fair |
|---|
| Roach | active | active | peak | peak | peak | active | fair | fair | fair | fair | active | active |
|---|
| Ruffe | fair | slow | fair | active | peak | peak | active | active | peak | peak | active | fair |
|---|
| Whitefish | slow | slow | fair | active | peak | peak | active | active | peak | peak | active | fair |
|---|
| Atlantic salmon | slow | slow | fair | active | peak | peak | active | active | active | active | slow | slow |
|---|
| Bream | slow | slow | slow | active | peak | peak | peak | peak | peak | active | fair | slow |
|---|
| European eel | slow | slow | slow | fair | active | active | active | active | peak | peak | active | fair |
|---|
| Zander | active | fair | fair | fair | fair | fair | active | peak | peak | peak | peak | active |
|---|
| Barbel | slow | slow | slow | fair | active | active | active | active | peak | active | fair | slow |
|---|
| Pike | fair | fair | fair | fair | fair | fair | active | active | peak | peak | peak | active |
|---|
| Rainbow trout | slow | slow | slow | fair | peak | peak | active | active | active | active | slow | slow |
|---|
| Brown trout | slow | slow | slow | fair | peak | peak | peak | peak | active | fair | slow | slow |
|---|
| Chub | slow | slow | slow | fair | active | peak | peak | active | active | fair | slow | slow |
|---|
| Ide | slow | slow | slow | fair | active | peak | peak | active | active | fair | slow | slow |
|---|
| White bream | fair | fair | fair | active | peak | peak | peak | active | fair | slow | slow | fair |
|---|
| Bleak | slow | slow | fair | active | peak | peak | active | fair | fair | slow | slow | slow |
|---|
| Carp | slow | slow | slow | slow | fair | active | peak | peak | active | fair | slow | slow |
|---|
| Crucian carp | slow | slow | slow | fair | peak | peak | active | active | fair | fair | slow | slow |
|---|
| Rudd | slow | slow | slow | fair | active | peak | active | active | fair | slow | slow | slow |
|---|
| Tench | slow | slow | slow | slow | active | peak | active | active | fair | slow | slow | slow |
|---|
| Wels catfish | slow | slow | slow | slow | fair | active | peak | peak | active | fair | slow | slow |
|---|
Biting
Fish in 1 of 1 report · Mostly Atlantic salmon
Anglers have logged 1 fishing report here. Most commonly caught: Atlantic salmon. Peak season: April.