A Spring or King Tide is a tide that rises highest and falls lowest from the mean sea level at any time of the year and in any season of the year.
Perigean tides occur semimonthly as the result of the Moon being new or full and increase the speed of tidal currents.
About three or four times a year (in the spring and the fall), the new or full moon coincides closely in time with the perigee of the moon
— the point when the moon is closest to the Earth. These occurrences are often called 'perigean spring tides.' (Credit: NOAA)
Note: Now called King Tides to not confuse Spring the season with spring, the
verb.