No predictions loaded for 2059. This site serves NOAA predictions from its own store, and this period has not been fetched for Rio Vista yet. Nothing is estimated or interpolated in its place. NOAA's own page for the station has the official table: tidesandcurrents.noaa.gov.
tidealmanac.site/us/ca/rio-vista-9415316/2059
Rio Vista, CA tide table 2059 (printable) · Tide Almanac