The All Blacks are bidding for their first world title since 1987 - when they beat Les Bleus at Eden Park - and the home nation is expectant after an unbeaten run which included a 37-17 win over Marc Lievremont's side.
"You try to get your preparation right through the week, so when you come to match day you can go out there with a clear head and just play your game," Weepu said.
"I think with occasions like this one, the more relaxed you stay, the less pressure you put on yourselves.
"I am pretty sure the boys get excited by moments like this.
"As a little kid in the backyard you dream of playing for your country and scoring the winning try or taking the winning kick. Moments like these are moments you don't want to forget.
"Everyone can't wait to wake up on game day and feel the buzz that is in the air and excitement around town.
"You can feel the energy. You go down to breakfast and look on the faces of the boys and you can see the excitement on their faces."
France, despite their underdog status, hold a strong record against the All Blacks in New Zealand, having beaten them four times since 1979.
And they can also reflect on two significant World Cup victories over their next opponents.
France were victorious in a pulsating semi-final at Twickenham 12 years ago, overcoming a sizeable deficit to triumph 43-31, then won at the quarter-final stage in 2007, claiming a 20-18 verdict in Cardiff.
"You have to expect the unexpected with them," Weepu added.
"On their day they can play the best rugby of their lives, and this is the opportunity for them to do that.
"They can be quite dangerous, so we are definitely not taking them too lightly and we know it is going to be a pretty physical encounter."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The Barbarians are one of the top invitational rugby sides with a long history and classic rugby jersey.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Lions get ready for their matches with this green training jersey. It's what the players wear. Get in the Gear!
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
$29.99
The Lions are ready to get their Australia tour underway. They arrive in Perth on Monday.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.