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Recorded 3 catches of Yellow perch in Iowa. Most active — year-round. A day-by-day bite calendar for Yellow perch.
Thursday, September 3
The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.
Best time — 11:00–16:00 (daytime activity).
Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.
In clear water, natural colors work best: small jig or minnow bait.
It's a hot day — a hat, sunglasses, and plenty of water are a must.
Worth going — it's a productive day.
The computed water temperature is around 75 °F — warmer than the 54–72 °F comfort range for Yellow perch: in the heat it drops deeper and feeds less often.
Yellow perch feeds by day — between sunrise and sunset; their times are in the sun-and-moon card above.
Pressure is flat: it moves no more than 0.00 inHg over the day, so the weather isn't shifting today's bite.
September is peak season for Yellow perch here.
These are the same values the bite curve above was computed from. How the forecast works
Partly cloudy · feels like +85°
The day is 3 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?