For some time now, I've wanted to visit Vietnam. I'm hoping to use ff miles, which means booking as far in advance as possible. I'm also thinking of December timeframe (that would be December 2009 - a long way off!), because I'd get almost an extra week off work with Christmas, Boxing Day, etc.
But what's the weather like? We'd like to start in the north (Hanoi) and then head south. Sapa sounds appealing but I understand it can get quite cold. We'd probably have 3 weeks in total, and I'd also like fit in a few days in Cambodia. Are we setting ourselves up for cold wet weather for most of the trip?
Thanks in advance.