Camper navigator Will Oxley said they would continue to work east "so that when the music starts again on the other side we will be in a position to lay the northeast of Brazil and not have to tack out again".
"The wind could change direction on the other side of it," he said, "but it is a very uncertain time for everyone."
The first boat to reach the trade wins would have an advantage and the light winds meant big gains and losses could be made.
At one point, Puma stretched away while the rest of the fleet suffered. Camper and Abu Dhabi lost 19 miles in one three-hour period while, further east, Telephonic lost 20 miles and Groupama 22.
Three hours later, however, Camper had reclaimed eight miles on Puma.
The five remaining boats in the fleet - Team Sanya will rejoin the race from Miami - are separated by only 56 miles with just under 4000 miles to the end of the sixth leg from Itajai, Brazil.