Wind and Tide
Wind against tide
When the wind is blowing in the opposite direction to the flow of the tide there are often larger, steeper waves. Be especially aware of this around harbour entrances and headlands where the currents are stronger.
Wind with tide
When the wind blows in the same direction as the tidal flow, the sea will often appear calmer and smoother. Be careful as this may fool you into thinking the wind is light when in fact it may be strong.