Since Upper Newport Bay is quite a ways up the bay from the Newport Harbor mouth, The time of the tides is delayed. Here is a link for the tides for the NEWPORT BAY ENTRANCE, CORONA DEL MAR, CA TIDES - The tides listed are at the harbor mouth. If you are further inside the bay, the times of the tide would be slightly later. The further you travel up the bay from the harbor mouth, the later the tides would occur - maximum delay would be about 1 hour.
https://sites.google.com/site/mrdavez07/x05
Tide tables for use with my kayak guide book - read it here free