Major variable is if those forecasted conditions turn out to be anything near reality and for how long will they affect you. If you're on the edge of a decision ... sail in the middle to see if one or the other works best.

Another problem is with higher waves at night you end up sailing by feel as you really have trouble not being able to see the variation in larger waves. So what might work for you during the day ... may not work in the dark.

Have fun. attached photo summarizes what night racing is all about.
[Linked Image]