Years ago I made many trips between Tokyo Bay and the Philippines
or other points south. The common typhoon path is between Hong Kong
and central Japan. Watch the weather
. Change course early. Plan your escape routes in advance.
Often the weather
is nice (for a ship). I wasn't sailing and never did the trip in a small boat. The weather changes fast. Stay in deep water
to avoid the ground swell.
There is a US Pub 120, made for the Navy
and ships that covers the Pacific Ocean
and SE Asia
here: Maritime Safety Information
It has lots of info, like don't anchor
in a WWII Japanese minefield.