As Costa Rica is at the Southern Edge of the Eastern Pacific Hurricane
area and the season just has started, it is possible to leave for Nuku Hiva at this time, if there is a window in the tropical activity.
Make sure to follow the present wx situation. From the latest forcast.
.48 HOUR FORECAST
LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
11N123W 1007 MB. WITHIN 120 NM OF CENTER WIND
20 TO 25 KT.
SEAS 9 FT.
The Latest Grib files also suggest some possible development in the vicinity of 6N 96W in about 3 days time.
Make sure you quickly get out of the Hurricane area by heading south to the vicinity of 5N
However, this will be the easy part. Have a look at this link Climatology of Global Ocean Winds.
The lower left hand corner of this map is a rough way point on the route to Nuku Hiva. As you can see, you can expect quite a bit of southerly winds around 15-20 knots, though present grib files suggest winds in the 10 to 15 knots range, away from the possible tropical activity .
Are you, your yacht and your crew up to beating into that kind of wind
for possibly a 1000 miles or more? That is the question you have to ask yourself.
Don't even think of going directly to Hawaii at this time of the year!!