The truth is, it’s not that fish don’t bite while it rains; their activity just decreases, leading to lower tendencies to bite. Rain oxygenates and makes water murkier, which causes an influx in predator and prey fish. Fish take time to adjust to these changes caused by rain, which is why it’s better to fish when the rain stops. However, if the rain is a light drizzle, it could actually make fish more active. If you’re a bass angler, rain will actually be good for you as bass fish become more aggressive during the rain, resulting in easier catches.