US team Oracle kept their giant trimaran in the port on Tuesday due to strong winds instead of training, a day after the first race of the 33rd America's Cup was cancelled due to weak winds.
"You have to be careful with what you do the day before a race. If it was not the day before the race we would be out there," said Oracle's Australian helmsman James Spithill.
Winds off the coast of Valencia reached speeds of between 25 and 30 knots, he added, compared to between 1.5 knots and 11 knots on Monday when the first of the best-of-three series pitting Oracle against Swiss defenders Alinghi was cancelled.
The race - 20 miles upwind and 20 miles back - between the two teams is now set for Wednesday but forecasters are not certain weather condition will allow it to go ahead either.
"We decided not to go out today. We thought it was a little too risky to go out and race a day before the race," said Oracle's Italian navigator Matteo Piazzi.
Alinghi had scheduled all along to keep its giant catamaran in port on Tuesday as a rest day for the crew.
It won the last America's Cup also held in Valencia in July 2007, when summertime breezes are stronger and more consistent.