IRELAND take on Australia twice today but it will be tales of contrasting climates.
A highly fancied International Rules side will take on the Aussies in a warm and sunny Perth early today, but it will be very different to the atmosphere around Dublin when the rugby teams clash.
When Paul O'Connell leads out his team in the Aviva stadium for the 4.30pm kick-off, Met Eireann advises that hats and scarves be kept at the ready.
Ireland are looking for a clean sweep in this year's November series. Victories over South Africa and Georgia earlier this month have confidence soaring.
The visitors will be looking to bounce back a 29-26 defeat to France in Paris last week.
Forecaster Pat Clarke said today and tomorrow are expected to be bright and sunny, but it will get much cooler as night closes in.
"Dublin will probably see highs of about 10 degrees during the day, but it will get very cold over night," he added.