So many things can effect it.
-air temp and water temp
-barometric pressure
-wind (effects surface, water temps, water clarity, and baitfish movement)
-sun vs clouds
-time of year
-water clarity
I try to take note of the conditions when I have good days and bad days.
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Yes, that’s true in general. But I was referring to Tues, Wed, today all at about 8AM. The conditions seemed quite similar. Of the 6 you listed, at least 4 were essentially the same : air + water temp, water clarity, sunniness, time of year, time of day. I didn’t note the barometric pressure, and perhaps it was a little more still today than yesterday.
Often when I get to a spot I’ve fished before, I see and feel the conditions, and I sometimes think “this should be a good day” or “this is not looking good”. I’m almost always right about the latter. When I think it’s going to suck, usually it turns out that way. Also frequently when I think it’s looking like it should be good, it is good. But maybe a third of the time when I think it looks good, it doesn’t turn out that way, like today. When that happens I wonder if the fish just aren’t biting or if I just didn’t solve the pattern.