The manager expects his side to be in good shape when they begin their campaign against fellow Group A teams Croatia, Scotland, Belgium, Serbia and Macedonia.
"It's a funny group. There are six strong teams in there, there's not a weak team in the group," he told Sky Sports News.
"I feel we'll be strong by the time the qualifiers start and it's one of those groups where you feel any team can beat any other team, it's all about who can be the most consistent."
Wales have qualified for a World Cup only once, for the 1958 tournament.