"Although parking is a lot easier to find in the afternoon & beach is less crowded, the tide is higher which makes snorkeling a bit difficult and makes water murky ."
Agree with what jet said.
The times of the high & low tide change according to the phase of the moon.
So if you want to go at low tide in the afternoon, Google tide table Honolulu or tide calendar Honolulu.
And I think it is the changes in the tide more so than the trade winds that make the water murky at times (just my thought with nothing to base it on). Maybe a combination.
There have been some on this forum that said snorkeling was good in the afternoon.
The biggest problem I would have is the sun being straight overhead. I burn easily.