At the moment the winds are very light. He gets rocked quite a bit when he sleeps, because the wind vane can't work with the scant wind to keep a good way on. He wants to save his fuel for when he really needs it for avoiding obstacles in such conditions.
He can afford some light wind -- he is one third of the way to Hawaii. He has had strong winds. Snookums traveled 170 miles in 30 hours. His top recorded speed was over 8 knots