Wind is not a friend of water animals.A calm ,warm,misty night will see a lot of water rodent activity.Now this is'nt to say they don't move in the wind(I have caught beaver in sets that were being hit by whitecaps),but calm nights will produce more fur.Heavy rains will also cut down on activity.
Fish,here in the north both beaver and rats are super active before freeze up.It is the last time they will see the light of day for a while,they are working on their houses and gathering food.
Tom