Track maintenance means rail services into Cardiff are restricted and supporters should check train schedules carefully.
Millennium Stadium manager Gerry Toms, the man in charge of the Welsh national stadium, says plans are in place to cope with the flow of fans into the city.
“The rail maintenance shouldn't be a major problem for spectators provided we can get the message out far and wide that they will need to plan their journeys in advance and preferably travel in groups," said Toms.
"Free parking will be available at the Civic Centre at Cathays Park for coaches and minibuses which is the advised way to travel.
“There will also be an extensive park-and-ride facility in Cardiff Bay signposted from the M4.
"The rail maintenance had been planned well in advance and, while it is unfortunate, the Millennium Stadium and Cardiff city are well used to ensuring travel conditions for major events are of the highest standards possible.
“The important thing is that fans are aware of it and can plan to work around it by using coaches, minibuses or car sharing wherever possible."
Coach or minibus travellers can use free parking at the Civic Centre at Cathays Park. Coaches should follow M4 electronic signs and exit at junction 32, follow A470 south to City Centre.
Supporters travelling by car should follow M4 electronic signs to junction 33 and follow signs south along A4232 to the park-and-ride facilities in Cardiff Bay. The park-and-ride will operate 10am-7pm and will cost £5 per car.
Supporters are strongly advised to check with the rail authorities before selecting train travel.
