The most changeable weather is around a full moon.
"The two best times to fish are when it's rainin' and when it ain't. "
Wind from the North; neither man nor beast venture forth
Wind from the west, fish bite the best.
Wind from the east, fish bite the least.
...may bring cool damp sails.
When the Moon is up at day; Wet your line. Don't play.
There is at least one old thread on old sayings and wives tales but let's hear some more!!
When the wind is from the South; it blows the bait in the fish's mouth!
Let"s hear 'em !