Moving on with the trip preparations I thought it might be handy to look at the weather forecast. It's good to see that rain is forecast for the day I arrive in Santiago. Rain and 22°. I thought it was supposed to be winter!!! For both your and my reference as I travel I've included the links to the weather forecast on this page. No doubt it will be colder there than where you are so enjoy!
I've also found that once I get to Ushuaia I'll be up for 7 hour days, with sunrise just before 10am!