A waxing moon looks like it is getting bigger starting from the new moon and growing to a full moon. Once itâs at a full moon it wanes back to a new moon. Tidal range and flow rate are greatest a couple of days after new and full moons when the spring tides occur. The smallest range and slowest flows occur during the neaps which is when there is a half moon.
The size of the spring tide range and flow varies through the year and is usually biggest around the equinoxes.