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Ruby Lake (Alberta) — a popular fishing spot. About 2 ha in area. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.
Cloudy: 1–11 °C
The bite is strong — fish are active. Pressure is rising — activity tends to be more subdued.
Best time — 07:00–09:00 (dawn bite) and 20:00–22:00 (dusk bite).
Look for drop-offs and gaps in the weeds, retrieve slowly, lingering over promising spots.
In clear water, natural colors work best: spinner or fly.
Bring a warm jacket — it's noticeably colder on the water than on shore.
Worth going — it's a productive day.
The computed water temperature is around 7 °C — inside the 7–16 °C comfort range for Brook trout, so baseline activity is high.
Brook trout works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is dropping 3 hPa over the day — fish are usually more active ahead of a weather change.
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 active season for Brook trout here.
These are the same values the bite curve above was computed from. How the forecast works
Cloudy · feels like +6°
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?