March Pacific Crossing

We will be crossing from Los Angeles to Hong Kong (18 days) on the Crystal
Symphony in March. Can anyone tell me what the temperatures will be like at
sea in March? There is only one port, overnight in Honolulu. Our only other
Pacific crossing was headed toward Australia and in the fall. I know to pack
layers, but one question is how heavy the top layer needs to be. As an
example, on formal nights should a shawl be airy or warmth-oriented?
--
Gail Koontz             Retired in my home state
836 Mallard Rd.         ... and loving it!
Cocoa, FL 32926         gailkoontz@cfl.rr.com