How Weather Affects Your Boat Fishing Rig Setup Bright sunshine changes how fish see. In clear water and high sun, fish can be very shy. They can see thick lines or bulky hardware easily. This is when you should simplify things. Use longer leaders and smaller hooks. If the water is murky or the sky is overcast, fish rely more on vibration and scent than sight. Read more: https://logcla.com/blogs/1455948/How-Weather-Affects-Your-Boat-Fishing-Rig-Setup