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Caban-coch Reservoir (Powys) — a spot well known among anglers. About 1.2 km² in area. Close by — Llandrindod Wells, Llanwrtyd Wells and Builth Wells. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.
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. Larger than 11 of the 12 waters nearby.
The wind builds its wave along the north-east — south-west axis — 2 mi of open water; along north-west — south-east there is only 1 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.
Partly cloudy: 11–18 °C
Saturday, September 19
In the fish list, this icon marks species recorded here by GBIF. Unmarked species may still occur in the waterbody.
Chum one spot near a drop-off and wait for fish to arrive — don't chase them.
Caban-coch Reservoir — Saturday, September 19
The bite is weak — fish are sluggish. Pressure is dropping — this usually boosts the bite. Peak 11:00–16:00.
The computed water temperature is around 14 °C — colder than the 14–26 °C comfort range for Bleak: the fish conserves energy and takes more cautiously.
Bleak feeds by day — between sunrise and sunset; their times are in the sun-and-moon card above.
Pressure is rising 8 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.
September is an average month for Bleak here.
These are the same values the bite curve above was computed from. How the forecast works
Partly cloudy · feels like +14°
The day is 4 min shorter than yesterday.
Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.
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?